id sid tid token lemma pos 33899 1 1 OPTICAL optical NN 33899 1 2 PROJECTION projection NN 33899 1 3 A a DT 33899 1 4 TREATISE treatise NN 33899 1 5 ON on IN 33899 1 6 THE the DT 33899 1 7 USE use NN 33899 1 8 OF of IN 33899 1 9 THE the DT 33899 1 10 LANTERN LANTERN NNP 33899 1 11 IN in IN 33899 1 12 EXHIBITION exhibition NN 33899 1 13 AND and CC 33899 1 14 SCIENTIFIC scientific JJ 33899 1 15 DEMONSTRATION demonstration NN 33899 1 16 BY by IN 33899 1 17 LEWIS LEWIS NNP 33899 1 18 WRIGHT WRIGHT NNP 33899 1 19 AUTHOR AUTHOR NNP 33899 1 20 OF of IN 33899 1 21 ' ' `` 33899 1 22 LIGHT light NN 33899 1 23 : : : 33899 1 24 A a DT 33899 1 25 COURSE course NN 33899 1 26 OF of IN 33899 1 27 EXPERIMENTAL EXPERIMENTAL NNP 33899 1 28 OPTICS OPTICS NNP 33899 1 29 ' ' POS 33899 1 30 5TH 5th CD 33899 1 31 EDITION EDITION NNP 33899 1 32 RE RE NNP 33899 1 33 - - HYPH 33899 1 34 WRITTEN WRITTEN NNP 33899 1 35 AND and CC 33899 1 36 BROUGHT brought VB 33899 1 37 UP up NN 33899 1 38 - - HYPH 33899 1 39 TO to IN 33899 1 40 - - HYPH 33899 1 41 DATE date NN 33899 1 42 BY by IN 33899 1 43 RUSSELL RUSSELL NNP 33899 1 44 S. S. NNP 33899 1 45 WRIGHT WRIGHT NNP 33899 1 46 , , , 33899 1 47 M.I.E.E. M.I.E.E. NNP 33899 2 1 IN in IN 33899 2 2 TWO two CD 33899 2 3 PARTS PARTS NNP 33899 2 4 PART PART NNP 33899 2 5 I -PRON- PRP 33899 2 6 _ _ VBP 33899 2 7 THE the DT 33899 2 8 PROJECTION projection NN 33899 2 9 OF of IN 33899 2 10 LANTERN LANTERN NNP 33899 2 11 SLIDES SLIDES NNP 33899 2 12 _ _ NNP 33899 2 13 _ _ NNP 33899 2 14 WITH with IN 33899 2 15 ILLUSTRATIONS illustrations JJ 33899 2 16 _ _ IN 33899 2 17 LONGMANS longman NNS 33899 2 18 , , , 33899 2 19 GREEN GREEN NNP 33899 2 20 , , , 33899 2 21 AND and CC 33899 2 22 CO CO NNP 33899 2 23 . . . 33899 2 24 39 39 CD 33899 2 25 PATERNOSTER PATERNOSTER NNP 33899 2 26 ROW ROW NNP 33899 2 27 , , , 33899 2 28 LONDON LONDON NNP 33899 2 29 , , , 33899 2 30 E.C. E.C. NNP 33899 3 1 FOURTH FOURTH NNP 33899 3 2 AVENUE AVENUE NNP 33899 3 3 & & CC 33899 3 4 30TH 30th CD 33899 3 5 STREET STREET NNP 33899 3 6 , , , 33899 3 7 NEW NEW NNP 33899 3 8 YORK YORK NNP 33899 3 9 BOMBAY BOMBAY NNP 33899 3 10 , , , 33899 3 11 CALCUTTA CALCUTTA NNP 33899 3 12 , , , 33899 3 13 AND and CC 33899 3 14 MADRAS madras NN 33899 3 15 1920 1920 CD 33899 3 16 ( ( -LRB- 33899 3 17 _ _ NNP 33899 3 18 All all DT 33899 3 19 rights right NNS 33899 3 20 reserved reserve VBN 33899 3 21 _ _ NNP 33899 3 22 ) ) -RRB- 33899 3 23 * * NFP 33899 3 24 * * NFP 33899 3 25 * * NFP 33899 3 26 * * NFP 33899 3 27 * * NFP 33899 3 28 { { -LRB- 33899 3 29 v v NN 33899 3 30 } } -RRB- 33899 3 31 PREFACE PREFACE NNP 33899 3 32 TO to IN 33899 3 33 THE the DT 33899 3 34 FIFTH FIFTH NNP 33899 3 35 EDITION EDITION VBD 33899 3 36 The the DT 33899 3 37 first first JJ 33899 3 38 edition edition NN 33899 3 39 of of IN 33899 3 40 this this DT 33899 3 41 work work NN 33899 3 42 was be VBD 33899 3 43 written write VBN 33899 3 44 by by IN 33899 3 45 my -PRON- PRP$ 33899 3 46 father father NN 33899 3 47 , , , 33899 3 48 the the DT 33899 3 49 late late JJ 33899 3 50 Mr. Mr. NNP 33899 3 51 Lewis Lewis NNP 33899 3 52 Wright Wright NNP 33899 3 53 , , , 33899 3 54 and and CC 33899 3 55 was be VBD 33899 3 56 published publish VBN 33899 3 57 in in IN 33899 3 58 1890 1890 CD 33899 3 59 . . . 33899 4 1 The the DT 33899 4 2 reception reception NN 33899 4 3 that that WDT 33899 4 4 it -PRON- PRP 33899 4 5 received receive VBD 33899 4 6 testified testify VBD 33899 4 7 to to IN 33899 4 8 the the DT 33899 4 9 fact fact NN 33899 4 10 that that IN 33899 4 11 it -PRON- PRP 33899 4 12 met meet VBD 33899 4 13 a a DT 33899 4 14 long long RB 33899 4 15 - - HYPH 33899 4 16 felt feel VBN 33899 4 17 want want NN 33899 4 18 , , , 33899 4 19 and and CC 33899 4 20 successive successive JJ 33899 4 21 editions edition NNS 33899 4 22 were be VBD 33899 4 23 published publish VBN 33899 4 24 in in IN 33899 4 25 1895 1895 CD 33899 4 26 , , , 33899 4 27 1901 1901 CD 33899 4 28 , , , 33899 4 29 and and CC 33899 4 30 1906 1906 CD 33899 4 31 . . . 33899 5 1 My -PRON- PRP$ 33899 5 2 father father NN 33899 5 3 , , , 33899 5 4 unfortunately unfortunately RB 33899 5 5 , , , 33899 5 6 met meet VBD 33899 5 7 his -PRON- PRP$ 33899 5 8 death death NN 33899 5 9 in in IN 33899 5 10 a a DT 33899 5 11 railway railway NN 33899 5 12 accident accident NN 33899 5 13 in in IN 33899 5 14 1905 1905 CD 33899 5 15 , , , 33899 5 16 and and CC 33899 5 17 the the DT 33899 5 18 corrections correction NNS 33899 5 19 and and CC 33899 5 20 additions addition NNS 33899 5 21 to to IN 33899 5 22 the the DT 33899 5 23 last last JJ 33899 5 24 edition edition NN 33899 5 25 , , , 33899 5 26 which which WDT 33899 5 27 had have VBD 33899 5 28 been be VBN 33899 5 29 to to IN 33899 5 30 a a DT 33899 5 31 certain certain JJ 33899 5 32 extent extent NN 33899 5 33 prepared prepare VBN 33899 5 34 by by IN 33899 5 35 him -PRON- PRP 33899 5 36 , , , 33899 5 37 were be VBD 33899 5 38 completed complete VBN 33899 5 39 and and CC 33899 5 40 written write VBN 33899 5 41 by by IN 33899 5 42 myself -PRON- PRP 33899 5 43 , , , 33899 5 44 and and CC 33899 5 45 the the DT 33899 5 46 work work NN 33899 5 47 as as IN 33899 5 48 published publish VBN 33899 5 49 then then RB 33899 5 50 was be VBD 33899 5 51 again again RB 33899 5 52 reprinted reprint VBN 33899 5 53 in in IN 33899 5 54 1911 1911 CD 33899 5 55 . . . 33899 6 1 As as IN 33899 6 2 the the DT 33899 6 3 original original JJ 33899 6 4 text text NN 33899 6 5 is be VBZ 33899 6 6 now now RB 33899 6 7 thirty thirty CD 33899 6 8 years year NNS 33899 6 9 old old JJ 33899 6 10 , , , 33899 6 11 it -PRON- PRP 33899 6 12 has have VBZ 33899 6 13 seemed seem VBN 33899 6 14 better well RBR 33899 6 15 entirely entirely RB 33899 6 16 to to TO 33899 6 17 re re VB 33899 6 18 - - VB 33899 6 19 write write VB 33899 6 20 the the DT 33899 6 21 whole whole JJ 33899 6 22 book book NN 33899 6 23 rather rather RB 33899 6 24 than than IN 33899 6 25 make make VB 33899 6 26 fresh fresh JJ 33899 6 27 revisions revision NNS 33899 6 28 , , , 33899 6 29 the the DT 33899 6 30 more more RBR 33899 6 31 so so RB 33899 6 32 as as IN 33899 6 33 the the DT 33899 6 34 last last JJ 33899 6 35 ten ten CD 33899 6 36 years year NNS 33899 6 37 have have VBP 33899 6 38 seen see VBN 33899 6 39 great great JJ 33899 6 40 advances advance NNS 33899 6 41 in in IN 33899 6 42 the the DT 33899 6 43 science science NN 33899 6 44 of of IN 33899 6 45 Lantern Lantern NNP 33899 6 46 Projection Projection NNP 33899 6 47 , , , 33899 6 48 and and CC 33899 6 49 especially especially RB 33899 6 50 in in IN 33899 6 51 the the DT 33899 6 52 developments development NNS 33899 6 53 of of IN 33899 6 54 Acetylene Acetylene NNP 33899 6 55 and and CC 33899 6 56 Electric Electric NNP 33899 6 57 Lighting Lighting NNP 33899 6 58 . . . 33899 7 1 It -PRON- PRP 33899 7 2 has have VBZ 33899 7 3 also also RB 33899 7 4 seemed seem VBN 33899 7 5 best well RBS 33899 7 6 at at IN 33899 7 7 the the DT 33899 7 8 present present JJ 33899 7 9 juncture juncture NN 33899 7 10 to to TO 33899 7 11 issue issue VB 33899 7 12 the the DT 33899 7 13 book book NN 33899 7 14 in in IN 33899 7 15 two two CD 33899 7 16 parts part NNS 33899 7 17 , , , 33899 7 18 the the DT 33899 7 19 first first JJ 33899 7 20 dealing dealing NN 33899 7 21 with with IN 33899 7 22 the the DT 33899 7 23 Projection Projection NNP 33899 7 24 of of IN 33899 7 25 Lantern Lantern NNP 33899 7 26 Slides Slides NNPS 33899 7 27 only only RB 33899 7 28 , , , 33899 7 29 and and CC 33899 7 30 the the DT 33899 7 31 second second JJ 33899 7 32 with with IN 33899 7 33 the the DT 33899 7 34 Demonstration Demonstration NNP 33899 7 35 of of IN 33899 7 36 Opaque Opaque NNP 33899 7 37 and and CC 33899 7 38 Microscopic Microscopic NNP 33899 7 39 Objects Objects NNPS 33899 7 40 , , , 33899 7 41 Scientific scientific JJ 33899 7 42 Phenomena Phenomena NNP 33899 7 43 and and CC 33899 7 44 accessory accessory JJ 33899 7 45 apparatus apparatus NN 33899 7 46 , , , 33899 7 47 including include VBG 33899 7 48 Cinematograph Cinematograph NNP 33899 7 49 Projection Projection NNP 33899 7 50 . . . 33899 8 1 It -PRON- PRP 33899 8 2 must must MD 33899 8 3 of of IN 33899 8 4 necessity necessity NN 33899 8 5 be be VB 33899 8 6 many many JJ 33899 8 7 months month NNS 33899 8 8 before before IN 33899 8 9 this this DT 33899 8 10 second second JJ 33899 8 11 volume volume NN 33899 8 12 can can MD 33899 8 13 be be VB 33899 8 14 produced produce VBN 33899 8 15 , , , 33899 8 16 for for IN 33899 8 17 the the DT 33899 8 18 simple simple JJ 33899 8 19 reason reason NN 33899 8 20 that that DT 33899 8 21 Optical optical JJ 33899 8 22 { { -LRB- 33899 8 23 vi vi NNP 33899 8 24 } } -RRB- 33899 8 25 Instrument Instrument NNP 33899 8 26 Makers maker NNS 33899 8 27 have have VBP 33899 8 28 as as RB 33899 8 29 yet yet RB 33899 8 30 hardly hardly RB 33899 8 31 had have VBD 33899 8 32 time time NN 33899 8 33 to to TO 33899 8 34 turn turn VB 33899 8 35 round round RB 33899 8 36 after after IN 33899 8 37 the the DT 33899 8 38 war war NN 33899 8 39 and and CC 33899 8 40 produce produce VBP 33899 8 41 their -PRON- PRP$ 33899 8 42 new new JJ 33899 8 43 models model NNS 33899 8 44 , , , 33899 8 45 and and CC 33899 8 46 therefore therefore RB 33899 8 47 any any DT 33899 8 48 such such JJ 33899 8 49 book book NN 33899 8 50 written write VBN 33899 8 51 now now RB 33899 8 52 could could MD 33899 8 53 do do VB 33899 8 54 little little RB 33899 8 55 more more JJR 33899 8 56 than than IN 33899 8 57 describe describe NNP 33899 8 58 apparatus apparatus NN 33899 8 59 that that WDT 33899 8 60 was be VBD 33899 8 61 on on IN 33899 8 62 the the DT 33899 8 63 market market NN 33899 8 64 prior prior RB 33899 8 65 to to IN 33899 8 66 1914 1914 CD 33899 8 67 . . . 33899 9 1 The the DT 33899 9 2 present present JJ 33899 9 3 work work NN 33899 9 4 , , , 33899 9 5 therefore therefore RB 33899 9 6 , , , 33899 9 7 deals deal NNS 33899 9 8 solely solely RB 33899 9 9 with with IN 33899 9 10 the the DT 33899 9 11 exhibition exhibition NN 33899 9 12 of of IN 33899 9 13 Lantern Lantern NNP 33899 9 14 Slides Slides NNPS 33899 9 15 in in IN 33899 9 16 the the DT 33899 9 17 Optical Optical NNP 33899 9 18 Lantern Lantern NNP 33899 9 19 , , , 33899 9 20 and and CC 33899 9 21 as as IN 33899 9 22 such such JJ 33899 9 23 I -PRON- PRP 33899 9 24 trust trust VBP 33899 9 25 will will MD 33899 9 26 be be VB 33899 9 27 found find VBN 33899 9 28 of of IN 33899 9 29 value value NN 33899 9 30 to to IN 33899 9 31 Schoolmasters schoolmaster NNS 33899 9 32 , , , 33899 9 33 Social Social NNP 33899 9 34 Workers Workers NNPS 33899 9 35 , , , 33899 9 36 Lecturers Lecturers NNPS 33899 9 37 , , , 33899 9 38 and and CC 33899 9 39 , , , 33899 9 40 in in IN 33899 9 41 fact fact NN 33899 9 42 , , , 33899 9 43 to to IN 33899 9 44 all all DT 33899 9 45 who who WP 33899 9 46 use use VBP 33899 9 47 the the DT 33899 9 48 lantern lantern NN 33899 9 49 as as IN 33899 9 50 a a DT 33899 9 51 means means NN 33899 9 52 of of IN 33899 9 53 illustration illustration NN 33899 9 54 . . . 33899 10 1 RUSSELL RUSSELL NNP 33899 10 2 S. S. NNP 33899 10 3 WRIGHT WRIGHT NNP 33899 10 4 . . . 33899 11 1 _ _ NNP 33899 11 2 January January NNP 33899 11 3 1920 1920 CD 33899 11 4 . . . 33899 11 5 _ _ NNP 33899 11 6 * * NFP 33899 11 7 * * NFP 33899 11 8 * * NFP 33899 11 9 * * NFP 33899 11 10 * * NFP 33899 11 11 { { -LRB- 33899 11 12 vii vii NN 33899 11 13 } } -RRB- 33899 11 14 CONTENTS CONTENTS NNP 33899 11 15 CHAPTER chapter NN 33899 11 16 PAGE page NN 33899 11 17 I. i. NN 33899 12 1 INTRODUCTORY INTRODUCTORY NNP 33899 12 2 1 1 CD 33899 12 3 II ii CD 33899 12 4 . . . 33899 13 1 THE the DT 33899 13 2 ILLUMINANT ILLUMINANT NNP 33899 13 3 3 3 CD 33899 13 4 III iii CD 33899 13 5 . . . 33899 14 1 PARAFFIN PARAFFIN NNP 33899 14 2 - - HYPH 33899 14 3 OIL oil NN 33899 14 4 LAMPS LAMPS NNP 33899 14 5 , , , 33899 14 6 INCANDESCENT INCANDESCENT NNP 33899 14 7 GAS gas NN 33899 14 8 AND and CC 33899 14 9 SPIRIT SPIRIT NNP 33899 14 10 BURNERS BURNERS NNP 33899 14 11 6 6 CD 33899 14 12 IV IV NNP 33899 14 13 . . . 33899 15 1 THE the DT 33899 15 2 ACETYLENE acetylene RB 33899 15 3 LIGHT light JJ 33899 15 4 11 11 CD 33899 15 5 V. V. NNP 33899 15 6 LIMELIGHT LIMELIGHT NNP 33899 15 7 AND and CC 33899 15 8 THE the DT 33899 15 9 ACETYLENE ACETYLENE NNP 33899 15 10 BLAST blast NN 33899 15 11 16 16 CD 33899 15 12 VI vi NN 33899 15 13 . . . 33899 16 1 THE the DT 33899 16 2 ELECTRIC ELECTRIC NNP 33899 16 3 LIGHT LIGHT NNP 33899 16 4 39 39 CD 33899 16 5 VII vii NN 33899 16 6 . . . 33899 17 1 THE the DT 33899 17 2 OPTICAL optical NN 33899 17 3 SYSTEM system RB 33899 17 4 OF of IN 33899 17 5 A a DT 33899 17 6 LANTERN LANTERN NNP 33899 17 7 57 57 CD 33899 17 8 VIII viii NN 33899 17 9 . . . 33899 18 1 THE the DT 33899 18 2 BODY body NN 33899 18 3 OF of IN 33899 18 4 THE the DT 33899 18 5 LANTERN LANTERN NNP 33899 18 6 70 70 CD 33899 18 7 IX ix NN 33899 18 8 . . . 33899 19 1 LANTERN lantern JJ 33899 19 2 BOXES box NNS 33899 19 3 , , , 33899 19 4 STANDS stand NNS 33899 19 5 , , , 33899 19 6 READING reading NN 33899 19 7 LAMPS lamps NN 33899 19 8 , , , 33899 19 9 ETC ETC NNP 33899 19 10 . . . 33899 20 1 76 76 CD 33899 20 2 X. X. NNP 33899 21 1 SCREENS SCREENS NNP 33899 21 2 AND and CC 33899 21 3 SCREEN SCREEN NNP 33899 21 4 STANDS stand VBZ 33899 21 5 79 79 CD 33899 21 6 XI XI NNP 33899 21 7 . . . 33899 22 1 THE the DT 33899 22 2 PRACTICAL PRACTICAL NNP 33899 22 3 MANIPULATION manipulation NN 33899 22 4 OF of IN 33899 22 5 A a DT 33899 22 6 LANTERN LANTERN NNP 33899 22 7 82 82 CD 33899 22 8 { { -LRB- 33899 22 9 viii viii NN 33899 22 10 } } -RRB- 33899 22 11 ILLUSTRATIONS illustrations JJ 33899 22 12 FIG fig NN 33899 22 13 . . . 33899 23 1 PAGE page NN 33899 23 2 1 1 CD 33899 23 3 . . . 33899 24 1 Oil Oil NNP 33899 24 2 Lamp Lamp NNP 33899 24 3 6 6 CD 33899 24 4 2 2 CD 33899 24 5 . . . 33899 25 1 Inverted Inverted NNP 33899 25 2 Incandescent Incandescent NNP 33899 25 3 Lamp Lamp NNP 33899 25 4 8 8 CD 33899 25 5 3 3 CD 33899 25 6 . . . 33899 26 1 Methylated Methylated NNP 33899 26 2 Spirit Spirit NNP 33899 26 3 Burner Burner NNP 33899 26 4 9 9 CD 33899 26 5 4 4 CD 33899 26 6 . . . 33899 27 1 Luna Luna NNP 33899 27 2 Lamp Lamp NNP 33899 27 3 10 10 CD 33899 27 4 5 5 CD 33899 27 5 . . . 33899 28 1 The the DT 33899 28 2 Moss Moss NNP 33899 28 3 Generator Generator NNP 33899 28 4 12 12 CD 33899 28 5 6 6 CD 33899 28 6 . . . 33899 29 1 The the DT 33899 29 2 A.L. A.L. NNP 33899 30 1 or or CC 33899 30 2 ' ' `` 33899 30 3 Popular Popular NNP 33899 30 4 ' ' '' 33899 30 5 Model model NN 33899 30 6 14 14 CD 33899 30 7 7 7 CD 33899 30 8 . . . 33899 31 1 Acetylene Acetylene NNP 33899 31 2 Jet Jet NNP 33899 31 3 15 15 CD 33899 31 4 8 8 CD 33899 31 5 . . . 33899 32 1 Oxygen Oxygen NNP 33899 32 2 Cylinder Cylinder NNP 33899 32 3 in in IN 33899 32 4 hemp hemp NN 33899 32 5 cover cover NN 33899 32 6 17 17 CD 33899 32 7 9 9 CD 33899 32 8 . . . 33899 33 1 Double double JJ 33899 33 2 Lever Lever NNP 33899 33 3 Key Key NNP 33899 33 4 18 18 CD 33899 33 5 10 10 CD 33899 33 6 . . . 33899 34 1 Fine Fine NNP 33899 34 2 Adjustment Adjustment NNP 33899 34 3 Valve Valve NNP 33899 34 4 19 19 CD 33899 34 5 11 11 CD 33899 34 6 . . . 33899 35 1 Construction Construction NNP 33899 35 2 of of IN 33899 35 3 Beard Beard NNP 33899 35 4 's 's POS 33899 35 5 Regulator Regulator NNP 33899 35 6 20 20 CD 33899 35 7 12 12 CD 33899 35 8 . . . 33899 36 1 Beard Beard NNP 33899 36 2 's 's POS 33899 36 3 Regulator Regulator NNP 33899 36 4 21 21 CD 33899 36 5 13 13 CD 33899 36 6 . . . 33899 37 1 Regulator Regulator NNP 33899 37 2 and and CC 33899 37 3 Gauge Gauge NNP 33899 37 4 22 22 CD 33899 37 5 14 14 CD 33899 37 6 . . . 33899 38 1 Gas gas NN 33899 38 2 - - HYPH 33899 38 3 bags bag NNS 33899 38 4 24 24 CD 33899 38 5 15 15 CD 33899 38 6 . . . 33899 39 1 ' ' `` 33899 39 2 Blow blow NN 33899 39 3 - - HYPH 33899 39 4 through through IN 33899 39 5 ' ' '' 33899 39 6 Nozzles Nozzles NNP 33899 39 7 25 25 CD 33899 39 8 16 16 CD 33899 39 9 . . . 33899 40 1 ' ' `` 33899 40 2 Blow blow NN 33899 40 3 - - HYPH 33899 40 4 through through NN 33899 40 5 ' ' '' 33899 40 6 Jet jet NN 33899 40 7 25 25 CD 33899 40 8 17 17 CD 33899 40 9 . . . 33899 41 1 Mixed Mixed NNP 33899 41 2 Jet Jet NNP 33899 41 3 27 27 CD 33899 41 4 18 18 CD 33899 41 5 . . . 33899 42 1 Mixed Mixed NNP 33899 42 2 Jet Jet NNP 33899 42 3 , , , 33899 42 4 Gwyer Gwyer NNP 33899 42 5 pattern pattern VBP 33899 42 6 27 27 CD 33899 42 7 19 19 CD 33899 42 8 . . . 33899 43 1 Mixing mix VBG 33899 43 2 Chamber Chamber NNP 33899 43 3 of of IN 33899 43 4 Jet Jet NNP 33899 43 5 28 28 CD 33899 43 6 20 20 CD 33899 43 7 . . . 33899 44 1 ' ' `` 33899 44 2 Injector injector NN 33899 44 3 ' ' '' 33899 44 4 Jet Jet NNP 33899 44 5 30 30 CD 33899 44 6 21 21 CD 33899 44 7 . . . 33899 45 1 ' ' `` 33899 45 2 Gridiron Gridiron NNP 33899 45 3 ' ' '' 33899 45 4 Saturator Saturator NNP 33899 45 5 32 32 CD 33899 45 6 22 22 CD 33899 45 7 . . . 33899 46 1 ' ' `` 33899 46 2 Pendant Pendant NNP 33899 46 3 ' ' '' 33899 46 4 Saturator saturator NN 33899 46 5 33 33 CD 33899 46 6 23 23 CD 33899 46 7 . . . 33899 47 1 Fallot Fallot NNP 33899 47 2 Air Air NNP 33899 47 3 Blast Blast NNP 33899 47 4 37 37 CD 33899 47 5 24 24 CD 33899 47 6 . . . 33899 48 1 Fallot Fallot NNP 33899 48 2 Air Air NNP 33899 48 3 Blast Blast NNP 33899 48 4 , , , 33899 48 5 and and CC 33899 48 6 Cylinder Cylinder NNP 33899 48 7 37 37 CD 33899 48 8 25 25 CD 33899 48 9 . . . 33899 49 1 Lime Lime NNP 33899 49 2 - - HYPH 33899 49 3 tongs tong NNS 33899 49 4 39 39 CD 33899 49 5 26 26 CD 33899 49 6 . . . 33899 50 1 Universal Universal NNP 33899 50 2 Hand Hand NNP 33899 50 3 - - HYPH 33899 50 4 fed fed NNP 33899 50 5 Arc Arc NNP 33899 50 6 Lamp Lamp NNP 33899 50 7 45 45 CD 33899 50 8 27 27 CD 33899 50 9 . . . 33899 51 1 46 46 CD 33899 51 2 28 28 CD 33899 51 3 . . . 33899 52 1 Resistance resistance NN 33899 52 2 49 49 CD 33899 52 3 29 29 CD 33899 52 4 . . . 33899 53 1 ' ' `` 33899 53 2 Scissors scissor NNS 33899 53 3 ' ' POS 33899 53 4 Arc Arc NNP 33899 53 5 Lamp Lamp NNP 33899 53 6 51 51 CD 33899 53 7 30 30 CD 33899 53 8 . . . 33899 54 1 ' ' `` 33899 54 2 Right right RB 33899 54 3 - - HYPH 33899 54 4 angled angle VBN 33899 54 5 ' ' '' 33899 54 6 Arc Arc NNP 33899 54 7 Lamp Lamp NNP 33899 54 8 52 52 CD 33899 54 9 31 31 CD 33899 54 10 . . . 33899 55 1 ' ' `` 33899 55 2 Westminster Westminster NNP 33899 55 3 ' ' '' 33899 55 4 Arc Arc NNP 33899 55 5 Lamp Lamp NNP 33899 55 6 53 53 CD 33899 55 7 32 32 CD 33899 55 8 . . . 33899 56 1 Arc arc VB 33899 56 2 Lamp Lamp NNP 33899 56 3 with with IN 33899 56 4 Induction Induction NNP 33899 56 5 Ring Ring NNP 33899 56 6 56 56 CD 33899 56 7 33 33 CD 33899 56 8 . . . 33899 57 1 The the DT 33899 57 2 Optical Optical NNP 33899 57 3 System System NNP 33899 57 4 of of IN 33899 57 5 a a DT 33899 57 6 Lantern Lantern NNP 33899 57 7 _ _ NNP 33899 57 8 facing face VBG 33899 57 9 p. p. NN 33899 57 10 _ _ NNP 33899 57 11 57 57 CD 33899 57 12 33A. 33a. CD 33899 58 1 Optical optical JJ 33899 58 2 System system NN 33899 58 3 of of IN 33899 58 4 Lantern Lantern NNP 33899 58 5 57 57 CD 33899 58 6 34 34 CD 33899 58 7 . . . 33899 59 1 Optical optical JJ 33899 59 2 System System NNP 33899 59 3 without without IN 33899 59 4 Condenser Condenser NNP 33899 59 5 59 59 CD 33899 59 6 35 35 CD 33899 59 7 . . . 33899 60 1 Action Action NNP 33899 60 2 of of IN 33899 60 3 Condenser Condenser NNP 33899 60 4 59 59 CD 33899 60 5 36 36 CD 33899 60 6 . . . 33899 61 1 Forms form NNS 33899 61 2 of of IN 33899 61 3 Condensers Condensers NNP 33899 61 4 60 60 CD 33899 61 5 37 37 CD 33899 61 6 . . . 33899 62 1 Double double JJ 33899 62 2 Sliding Sliding NNP 33899 62 3 Carrier Carrier NNP 33899 62 4 62 62 CD 33899 62 5 38 38 CD 33899 62 6 . . . 33899 63 1 Beard Beard NNP 33899 63 2 's 's POS 33899 63 3 Dissolving Dissolving NNP 33899 63 4 Carrier Carrier NNP 33899 63 5 63 63 CD 33899 63 6 39 39 CD 33899 63 7 . . . 33899 64 1 Focussing focusse VBG 33899 64 2 Action action NN 33899 64 3 of of IN 33899 64 4 Lens Lens NNP 33899 64 5 64 64 CD 33899 64 6 40 40 CD 33899 64 7 . . . 33899 65 1 Achromatic Achromatic NNP 33899 65 2 Lens Lens NNP 33899 65 3 65 65 CD 33899 65 4 41 41 CD 33899 65 5 . . . 33899 66 1 Petzval Petzval NNP 33899 66 2 Combination Combination NNP 33899 66 3 66 66 CD 33899 66 4 42 42 CD 33899 66 5 . . . 33899 67 1 Hughes Hughes NNP 33899 67 2 ' ' POS 33899 67 3 Short Short NNP 33899 67 4 - - HYPH 33899 67 5 Range Range NNP 33899 67 6 Lantern Lantern NNP 33899 67 7 71 71 CD 33899 67 8 43 43 CD 33899 67 9 . . . 33899 68 1 Long long JJ 33899 68 2 - - HYPH 33899 68 3 Range Range NNP 33899 68 4 Lantern Lantern NNP 33899 68 5 72 72 CD 33899 68 6 44 44 CD 33899 68 7 . . . 33899 69 1 Connections connection NNS 33899 69 2 for for IN 33899 69 3 a a DT 33899 69 4 Bi Bi NNP 33899 69 5 - - HYPH 33899 69 6 unial unial JJ 33899 69 7 Lantern Lantern NNP 33899 69 8 73 73 CD 33899 69 9 45 45 CD 33899 69 10 . . . 33899 70 1 Beard Beard NNP 33899 70 2 's 's POS 33899 70 3 Circulating Circulating NNP 33899 70 4 Water Water NNP 33899 70 5 Tank Tank NNP 33899 70 6 75 75 CD 33899 70 7 46 46 CD 33899 70 8 . . . 33899 71 1 Quadruple Quadruple NNP 33899 71 2 Lantern Lantern NNP 33899 71 3 Stand stand VBP 33899 71 4 78 78 CD 33899 71 5 47 47 CD 33899 71 6 . . . 33899 72 1 Reading read VBG 33899 72 2 Lamp Lamp NNP 33899 72 3 79 79 CD 33899 72 4 48 48 CD 33899 72 5 . . . 33899 73 1 Roller Roller NNP 33899 73 2 Screen Screen NNP 33899 73 3 80 80 CD 33899 73 4 49 49 CD 33899 73 5 . . . 33899 74 1 Portable portable JJ 33899 74 2 Screen Screen NNP 33899 74 3 Stand Stand NNP 33899 74 4 81 81 CD 33899 74 5 50 50 CD 33899 74 6 . . . 33899 75 1 Adjustment adjustment NN 33899 75 2 of of IN 33899 75 3 the the DT 33899 75 4 Light Light NNP 33899 75 5 84 84 CD 33899 75 6 * * NFP 33899 75 7 * * NFP 33899 75 8 * * NFP 33899 75 9 * * NFP 33899 75 10 * * NFP 33899 75 11 { { -LRB- 33899 75 12 1 1 CD 33899 75 13 } } -RRB- 33899 75 14 OPTICAL optical NN 33899 75 15 PROJECTION projection NN 33899 75 16 A a DT 33899 75 17 TREATISE treatise NN 33899 75 18 ON on IN 33899 75 19 THE the DT 33899 75 20 USE USE NNP 33899 75 21 OF of IN 33899 75 22 THE the DT 33899 75 23 OPTICAL OPTICAL NNP 33899 75 24 LANTERN LANTERN NNP 33899 75 25 CHAPTER chapter NN 33899 75 26 I -PRON- PRP 33899 75 27 INTRODUCTORY INTRODUCTORY NNP 33899 75 28 Lantern Lantern NNP 33899 75 29 Projection Projection NNP 33899 75 30 , , , 33899 75 31 as as IN 33899 75 32 commonly commonly RB 33899 75 33 understood understand VBN 33899 75 34 , , , 33899 75 35 may may MD 33899 75 36 be be VB 33899 75 37 broadly broadly RB 33899 75 38 subdivided subdivide VBN 33899 75 39 into into IN 33899 75 40 two two CD 33899 75 41 branches branch NNS 33899 75 42 : : : 33899 75 43 ( ( -LRB- 33899 75 44 A a NN 33899 75 45 ) ) -RRB- 33899 75 46 The the DT 33899 75 47 Projection Projection NNP 33899 75 48 of of IN 33899 75 49 Lantern Lantern NNP 33899 75 50 Slides Slides NNPS 33899 75 51 , , , 33899 75 52 and and CC 33899 75 53 ( ( -LRB- 33899 75 54 B b NN 33899 75 55 ) ) -RRB- 33899 75 56 The the DT 33899 75 57 Projection Projection NNP 33899 75 58 of of IN 33899 75 59 Scientific Scientific NNP 33899 75 60 Phenomena Phenomena NNP 33899 75 61 , , , 33899 75 62 Opaque Opaque NNP 33899 75 63 Objects Objects NNPS 33899 75 64 , , , 33899 75 65 Microscopic Microscopic NNP 33899 75 66 Specimens Specimens NNP 33899 75 67 , , , 33899 75 68 & & CC 33899 75 69 c. c. NNP 33899 75 70 , , , 33899 75 71 usually usually RB 33899 75 72 referred refer VBD 33899 75 73 to to TO 33899 75 74 broadly broadly RB 33899 75 75 under under IN 33899 75 76 the the DT 33899 75 77 heading heading NN 33899 75 78 of of IN 33899 75 79 ' ' `` 33899 75 80 Scientific Scientific NNP 33899 75 81 Demonstration Demonstration NNP 33899 75 82 . . . 33899 75 83 ' ' '' 33899 76 1 To to IN 33899 76 2 these these DT 33899 76 3 two two CD 33899 76 4 classes class NNS 33899 76 5 may may MD 33899 76 6 perhaps perhaps RB 33899 76 7 now now RB 33899 76 8 be be VB 33899 76 9 added add VBN 33899 76 10 a a DT 33899 76 11 third third JJ 33899 76 12 , , , 33899 76 13 viz viz NN 33899 76 14 . . . 33899 77 1 The the DT 33899 77 2 Projection Projection NNP 33899 77 3 of of IN 33899 77 4 So so RB 33899 77 5 - - HYPH 33899 77 6 called call VBN 33899 77 7 Living Living NNP 33899 77 8 Pictures Pictures NNPS 33899 77 9 , , , 33899 77 10 or or CC 33899 77 11 , , , 33899 77 12 in in IN 33899 77 13 other other JJ 33899 77 14 words word NNS 33899 77 15 , , , 33899 77 16 the the DT 33899 77 17 Cinematograph Cinematograph NNP 33899 77 18 . . . 33899 78 1 In in IN 33899 78 2 the the DT 33899 78 3 earlier early JJR 33899 78 4 editions edition NNS 33899 78 5 of of IN 33899 78 6 this this DT 33899 78 7 work work NN 33899 78 8 both both CC 33899 78 9 A a NN 33899 78 10 and and CC 33899 78 11 B b NN 33899 78 12 were be VBD 33899 78 13 dealt deal VBN 33899 78 14 with with IN 33899 78 15 in in IN 33899 78 16 the the DT 33899 78 17 same same JJ 33899 78 18 volume volume NN 33899 78 19 , , , 33899 78 20 but but CC 33899 78 21 , , , 33899 78 22 as as IN 33899 78 23 there there EX 33899 78 24 are be VBP 33899 78 25 thousands thousand NNS 33899 78 26 who who WP 33899 78 27 require require VBP 33899 78 28 to to TO 33899 78 29 use use VB 33899 78 30 a a DT 33899 78 31 lantern lantern NN 33899 78 32 for for IN 33899 78 33 the the DT 33899 78 34 demonstration demonstration NN 33899 78 35 of of IN 33899 78 36 lantern lantern NNP 33899 78 37 slides slide VBZ 33899 78 38 only only RB 33899 78 39 , , , 33899 78 40 and and CC 33899 78 41 who who WP 33899 78 42 have have VBP 33899 78 43 no no DT 33899 78 44 interest interest NN 33899 78 45 or or CC 33899 78 46 concern concern NN 33899 78 47 with with IN 33899 78 48 Science Science NNP 33899 78 49 Projection Projection NNP 33899 78 50 , , , 33899 78 51 it -PRON- PRP 33899 78 52 has have VBZ 33899 78 53 seemed seem VBN 33899 78 54 to to IN 33899 78 55 the the DT 33899 78 56 writer writer NN 33899 78 57 that that WDT 33899 78 58 the the DT 33899 78 59 work work NN 33899 78 60 might may MD 33899 78 61 , , , 33899 78 62 with with IN 33899 78 63 advantage advantage NN 33899 78 64 , , , 33899 78 65 be be VB 33899 78 66 divided divide VBN 33899 78 67 into into IN 33899 78 68 two two CD 33899 78 69 portions portion NNS 33899 78 70 , , , 33899 78 71 Vol Vol NNP 33899 78 72 . . . 33899 79 1 I. I. NNP 33899 79 2 dealing deal VBG 33899 79 3 with with IN 33899 79 4 slides slide NNS 33899 79 5 only only RB 33899 79 6 , , , 33899 79 7 and and CC 33899 79 8 Vol Vol NNP 33899 79 9 . . . 33899 80 1 II ii CD 33899 80 2 . . . 33899 81 1 with with IN 33899 81 2 the the DT 33899 81 3 various various JJ 33899 81 4 adaptations adaptation NNS 33899 81 5 of of IN 33899 81 6 the the DT 33899 81 7 science science NN 33899 81 8 lantern lantern NN 33899 81 9 . . . 33899 82 1 This this DT 33899 82 2 present present JJ 33899 82 3 book book NN 33899 82 4 therefore therefore RB 33899 82 5 only only RB 33899 82 6 deals deal NNS 33899 82 7 with with IN 33899 82 8 the the DT 33899 82 9 exhibition exhibition NN 33899 82 10 of of IN 33899 82 11 lantern lantern JJ 33899 82 12 slides slide NNS 33899 82 13 , , , 33899 82 14 and and CC 33899 82 15 as as RB 33899 82 16 such such JJ 33899 82 17 it -PRON- PRP 33899 82 18 will will MD 33899 82 19 , , , 33899 82 20 I -PRON- PRP 33899 82 21 trust trust VBP 33899 82 22 , , , 33899 82 23 be be VB 33899 82 24 found find VBN 33899 82 25 to to TO 33899 82 26 be be VB 33899 82 27 of of IN 33899 82 28 real real JJ 33899 82 29 assistance assistance NN 33899 82 30 to to IN 33899 82 31 the the DT 33899 82 32 ordinary ordinary JJ 33899 82 33 user user NN 33899 82 34 of of IN 33899 82 35 the the DT 33899 82 36 optical optical JJ 33899 82 37 lantern lantern NN 33899 82 38 , , , 33899 82 39 including include VBG 33899 82 40 clergymen clergyman NNS 33899 82 41 , , , 33899 82 42 schoolmasters schoolmaster NNS 33899 82 43 , , , 33899 82 44 army army NN 33899 82 45 and and CC 33899 82 46 cadet cadet NN 33899 82 47 officers officer NNS 33899 82 48 , , , 33899 82 49 and and CC 33899 82 50 others other NNS 33899 82 51 { { -LRB- 33899 82 52 2 2 CD 33899 82 53 } } -RRB- 33899 82 54 who who WP 33899 82 55 require require VBP 33899 82 56 advice advice NN 33899 82 57 and and CC 33899 82 58 instruction instruction NN 33899 82 59 in in IN 33899 82 60 the the DT 33899 82 61 purchase purchase NN 33899 82 62 or or CC 33899 82 63 use use NN 33899 82 64 of of IN 33899 82 65 a a DT 33899 82 66 lantern lantern NN 33899 82 67 . . . 33899 83 1 The the DT 33899 83 2 essential essential JJ 33899 83 3 parts part NNS 33899 83 4 of of IN 33899 83 5 a a DT 33899 83 6 lantern lantern NN 33899 83 7 are be VBP 33899 83 8 : : : 33899 83 9 ( ( -LRB- 33899 83 10 _ _ NNP 33899 83 11 a a DT 33899 83 12 _ _ NNP 33899 83 13 ) ) -RRB- 33899 83 14 A a DT 33899 83 15 _ _ NNP 33899 83 16 slide slide NN 33899 83 17 - - HYPH 33899 83 18 holder holder NN 33899 83 19 _ _ NNP 33899 83 20 or or CC 33899 83 21 _ _ NNP 33899 83 22 carrier carrier NN 33899 83 23 _ _ NNP 33899 83 24 to to TO 33899 83 25 hold hold VB 33899 83 26 the the DT 33899 83 27 slide slide NN 33899 83 28 ; ; , 33899 83 29 ( ( -LRB- 33899 83 30 _ _ NNP 33899 83 31 b b NNP 33899 83 32 _ _ NNP 33899 83 33 ) ) -RRB- 33899 83 34 a a DT 33899 83 35 _ _ NNP 33899 83 36 lens lens NN 33899 83 37 _ _ NNP 33899 83 38 to to TO 33899 83 39 ' ' `` 33899 83 40 focus focus VB 33899 83 41 ' ' '' 33899 83 42 it -PRON- PRP 33899 83 43 on on IN 33899 83 44 the the DT 33899 83 45 screen screen NN 33899 83 46 ; ; , 33899 83 47 ( ( -LRB- 33899 83 48 _ _ NNP 33899 83 49 c c NNP 33899 83 50 _ _ NNP 33899 83 51 ) ) -RRB- 33899 83 52 a a DT 33899 83 53 _ _ NNP 33899 83 54 condenser condenser NN 33899 83 55 _ _ NNP 33899 83 56 to to TO 33899 83 57 converge converge VB 33899 83 58 the the DT 33899 83 59 light light NN 33899 83 60 upon upon IN 33899 83 61 slide slide NN 33899 83 62 and and CC 33899 83 63 lens lens NN 33899 83 64 ; ; : 33899 83 65 ( ( -LRB- 33899 83 66 _ _ NNP 33899 83 67 d d NNP 33899 83 68 _ _ NNP 33899 83 69 ) ) -RRB- 33899 83 70 a a DT 33899 83 71 source source NN 33899 83 72 of of IN 33899 83 73 light light NN 33899 83 74 or or CC 33899 83 75 _ _ NNP 33899 83 76 radiant radiant NN 33899 83 77 _ _ NNP 33899 83 78 to to TO 33899 83 79 provide provide VB 33899 83 80 the the DT 33899 83 81 necessary necessary JJ 33899 83 82 illumination illumination NN 33899 83 83 ; ; , 33899 83 84 and and CC 33899 83 85 ( ( -LRB- 33899 83 86 _ _ NNP 33899 83 87 e e NNP 33899 83 88 _ _ NNP 33899 83 89 ) ) -RRB- 33899 83 90 a a DT 33899 83 91 _ _ NNP 33899 83 92 body body NN 33899 83 93 _ _ NNP 33899 83 94 or or CC 33899 83 95 framework framework NN 33899 83 96 to to TO 33899 83 97 hold hold VB 33899 83 98 the the DT 33899 83 99 whole whole NN 33899 83 100 together together RB 33899 83 101 . . . 33899 84 1 All all DT 33899 84 2 possible possible JJ 33899 84 3 variations variation NNS 33899 84 4 in in IN 33899 84 5 choice choice NN 33899 84 6 of of IN 33899 84 7 a a DT 33899 84 8 suitable suitable JJ 33899 84 9 lantern lantern NN 33899 84 10 relate relate NN 33899 84 11 to to IN 33899 84 12 one one CD 33899 84 13 or or CC 33899 84 14 another another DT 33899 84 15 of of IN 33899 84 16 the the DT 33899 84 17 above above JJ 33899 84 18 parts part NNS 33899 84 19 , , , 33899 84 20 and and CC 33899 84 21 will will MD 33899 84 22 be be VB 33899 84 23 treated treat VBN 33899 84 24 of of IN 33899 84 25 in in IN 33899 84 26 turn turn NN 33899 84 27 ; ; : 33899 84 28 but but CC 33899 84 29 , , , 33899 84 30 fortunately fortunately RB 33899 84 31 , , , 33899 84 32 we -PRON- PRP 33899 84 33 have have VBP 33899 84 34 this this DT 33899 84 35 all all RB 33899 84 36 - - HYPH 33899 84 37 important important JJ 33899 84 38 simplification simplification NN 33899 84 39 that that WDT 33899 84 40 every every DT 33899 84 41 ordinary ordinary JJ 33899 84 42 English english JJ 33899 84 43 lantern lantern NN 33899 84 44 slide slide NN 33899 84 45 is be VBZ 33899 84 46 the the DT 33899 84 47 same same JJ 33899 84 48 _ _ NNP 33899 84 49 standard standard JJ 33899 84 50 size size NN 33899 84 51 _ _ NNP 33899 84 52 , , , 33899 84 53 viz viz NN 33899 84 54 . . . 33899 85 1 3¼ 3¼ CD 33899 85 2 inches inches NNPS 33899 85 3 square square NNP 33899 85 4 . . . 33899 86 1 Some some DT 33899 86 2 Continental continental JJ 33899 86 3 and and CC 33899 86 4 American american JJ 33899 86 5 slides slide NNS 33899 86 6 differ differ VBP 33899 86 7 in in IN 33899 86 8 one one CD 33899 86 9 dimension dimension NN 33899 86 10 from from IN 33899 86 11 the the DT 33899 86 12 above above JJ 33899 86 13 , , , 33899 86 14 but but CC 33899 86 15 not not RB 33899 86 16 enough enough JJ 33899 86 17 to to TO 33899 86 18 cause cause VB 33899 86 19 any any DT 33899 86 20 serious serious JJ 33899 86 21 difficulty difficulty NN 33899 86 22 , , , 33899 86 23 and and CC 33899 86 24 the the DT 33899 86 25 convenient convenient JJ 33899 86 26 English english JJ 33899 86 27 standard standard NN 33899 86 28 is be VBZ 33899 86 29 being be VBG 33899 86 30 gradually gradually RB 33899 86 31 adopted adopt VBN 33899 86 32 throughout throughout IN 33899 86 33 the the DT 33899 86 34 world world NN 33899 86 35 . . . 33899 87 1 The the DT 33899 87 2 varieties variety NNS 33899 87 3 of of IN 33899 87 4 slide slide NN 33899 87 5 - - HYPH 33899 87 6 holders holder NNS 33899 87 7 or or CC 33899 87 8 carriers carrier NNS 33899 87 9 are be VBP 33899 87 10 therefore therefore RB 33899 87 11 comparatively comparatively RB 33899 87 12 few few JJ 33899 87 13 and and CC 33899 87 14 are be VBP 33899 87 15 chiefly chiefly RB 33899 87 16 concerned concerned JJ 33899 87 17 with with IN 33899 87 18 the the DT 33899 87 19 question question NN 33899 87 20 of of IN 33899 87 21 rapidly rapidly RB 33899 87 22 and and CC 33899 87 23 easily easily RB 33899 87 24 changing change VBG 33899 87 25 the the DT 33899 87 26 slides slide NNS 33899 87 27 . . . 33899 88 1 The the DT 33899 88 2 choice choice NN 33899 88 3 of of IN 33899 88 4 a a DT 33899 88 5 focussing focusse VBG 33899 88 6 lens lens NN 33899 88 7 or or CC 33899 88 8 objective objective NN 33899 88 9 is be VBZ 33899 88 10 mainly mainly RB 33899 88 11 a a DT 33899 88 12 matter matter NN 33899 88 13 of of IN 33899 88 14 the the DT 33899 88 15 size size NN 33899 88 16 of of IN 33899 88 17 picture picture NN 33899 88 18 required require VBN 33899 88 19 , , , 33899 88 20 and and CC 33899 88 21 the the DT 33899 88 22 most most RBS 33899 88 23 convenient convenient JJ 33899 88 24 distance distance NN 33899 88 25 from from IN 33899 88 26 the the DT 33899 88 27 screen screen NN 33899 88 28 for for IN 33899 88 29 the the DT 33899 88 30 lantern lantern NN 33899 88 31 to to TO 33899 88 32 be be VB 33899 88 33 placed place VBN 33899 88 34 . . . 33899 89 1 Variations variation NNS 33899 89 2 in in IN 33899 89 3 condensers condenser NNS 33899 89 4 , , , 33899 89 5 which which WDT 33899 89 6 are be VBP 33899 89 7 comparatively comparatively RB 33899 89 8 small small JJ 33899 89 9 , , , 33899 89 10 are be VBP 33899 89 11 usually usually RB 33899 89 12 only only RB 33899 89 13 a a DT 33899 89 14 matter matter NN 33899 89 15 of of IN 33899 89 16 conforming conform VBG 33899 89 17 these these DT 33899 89 18 with with IN 33899 89 19 the the DT 33899 89 20 size size NN 33899 89 21 or or CC 33899 89 22 type type NN 33899 89 23 of of IN 33899 89 24 objective objective NN 33899 89 25 to to TO 33899 89 26 be be VB 33899 89 27 used use VBN 33899 89 28 , , , 33899 89 29 and and CC 33899 89 30 should should MD 33899 89 31 be be VB 33899 89 32 left leave VBN 33899 89 33 to to IN 33899 89 34 the the DT 33899 89 35 manufacturer manufacturer NN 33899 89 36 's 's POS 33899 89 37 judgment judgment NN 33899 89 38 . . . 33899 90 1 The the DT 33899 90 2 question question NN 33899 90 3 of of IN 33899 90 4 a a DT 33899 90 5 suitable suitable JJ 33899 90 6 radiant radiant NN 33899 90 7 is be VBZ 33899 90 8 partly partly RB 33899 90 9 a a DT 33899 90 10 matter matter NN 33899 90 11 of of IN 33899 90 12 the the DT 33899 90 13 amount amount NN 33899 90 14 of of IN 33899 90 15 illumination illumination NN 33899 90 16 required require VBN 33899 90 17 , , , 33899 90 18 and and CC 33899 90 19 partly partly RB 33899 90 20 that that DT 33899 90 21 of of IN 33899 90 22 the the DT 33899 90 23 practical practical JJ 33899 90 24 possibilities possibility NNS 33899 90 25 ; ; : 33899 90 26 for for IN 33899 90 27 example example NN 33899 90 28 , , , 33899 90 29 if if IN 33899 90 30 electric electric JJ 33899 90 31 current current NN 33899 90 32 is be VBZ 33899 90 33 available available JJ 33899 90 34 some some DT 33899 90 35 form form NN 33899 90 36 of of IN 33899 90 37 electric electric JJ 33899 90 38 light light NN 33899 90 39 is be VBZ 33899 90 40 usually usually RB 33899 90 41 the the DT 33899 90 42 most most RBS 33899 90 43 convenient convenient JJ 33899 90 44 , , , 33899 90 45 as as RB 33899 90 46 well well RB 33899 90 47 as as IN 33899 90 48 the the DT 33899 90 49 least least RBS 33899 90 50 expensive expensive JJ 33899 90 51 , , , 33899 90 52 but but CC 33899 90 53 where where WRB 33899 90 54 this this DT 33899 90 55 is be VBZ 33899 90 56 not not RB 33899 90 57 the the DT 33899 90 58 case case NN 33899 90 59 , , , 33899 90 60 paraffin paraffin NN 33899 90 61 - - HYPH 33899 90 62 oil oil NN 33899 90 63 , , , 33899 90 64 methylated methylated JJ 33899 90 65 spirit spirit NN 33899 90 66 , , , 33899 90 67 incandescent incandescent NN 33899 90 68 gas gas NN 33899 90 69 , , , 33899 90 70 acetylene acetylene NN 33899 90 71 , , , 33899 90 72 limelight limelight NNP 33899 90 73 , , , 33899 90 74 & & CC 33899 90 75 c. c. NNP 33899 90 76 , , , 33899 90 77 are be VBP 33899 90 78 alternatives alternative NNS 33899 90 79 which which WDT 33899 90 80 all all DT 33899 90 81 have have VBP 33899 90 82 their -PRON- PRP$ 33899 90 83 uses use NNS 33899 90 84 and and CC 33899 90 85 must must MD 33899 90 86 be be VB 33899 90 87 considered consider VBN 33899 90 88 on on IN 33899 90 89 their -PRON- PRP$ 33899 90 90 own own JJ 33899 90 91 merits merit NNS 33899 90 92 . . . 33899 91 1 Sometimes sometimes RB 33899 91 2 , , , 33899 91 3 as as IN 33899 91 4 for for IN 33899 91 5 example example NN 33899 91 6 in in IN 33899 91 7 the the DT 33899 91 8 case case NN 33899 91 9 of of IN 33899 91 10 a a DT 33899 91 11 travelling travel VBG 33899 91 12 lecturer lecturer NN 33899 91 13 , , , 33899 91 14 a a DT 33899 91 15 lantern lantern NN 33899 91 16 is be VBZ 33899 91 17 required require VBN 33899 91 18 fitted fit VBN 33899 91 19 with with IN 33899 91 20 a a DT 33899 91 21 range range NN 33899 91 22 of of IN 33899 91 23 lenses lense NNS 33899 91 24 for for IN 33899 91 25 { { -LRB- 33899 91 26 3 3 CD 33899 91 27 } } -RRB- 33899 91 28 halls hall NNS 33899 91 29 of of IN 33899 91 30 different different JJ 33899 91 31 size size NN 33899 91 32 , , , 33899 91 33 and and CC 33899 91 34 also also RB 33899 91 35 with with IN 33899 91 36 a a DT 33899 91 37 variety variety NN 33899 91 38 of of IN 33899 91 39 illuminants illuminant NNS 33899 91 40 , , , 33899 91 41 and and CC 33899 91 42 this this DT 33899 91 43 in in IN 33899 91 44 most most JJS 33899 91 45 lanterns lantern NNS 33899 91 46 can can MD 33899 91 47 be be VB 33899 91 48 easily easily RB 33899 91 49 provided provide VBN 33899 91 50 for for IN 33899 91 51 . . . 33899 92 1 The the DT 33899 92 2 body body NN 33899 92 3 is be VBZ 33899 92 4 usually usually RB 33899 92 5 a a DT 33899 92 6 matter matter NN 33899 92 7 of of IN 33899 92 8 taste taste NN 33899 92 9 and and CC 33899 92 10 price price NN 33899 92 11 only only RB 33899 92 12 , , , 33899 92 13 and and CC 33899 92 14 may may MD 33899 92 15 range range VB 33899 92 16 from from IN 33899 92 17 a a DT 33899 92 18 simple simple JJ 33899 92 19 but but CC 33899 92 20 efficient efficient JJ 33899 92 21 shell shell NN 33899 92 22 of of IN 33899 92 23 Russian russian JJ 33899 92 24 iron iron NN 33899 92 25 to to IN 33899 92 26 an an DT 33899 92 27 elaborate elaborate JJ 33899 92 28 mahogany mahogany NN 33899 92 29 instrument instrument NN 33899 92 30 with with IN 33899 92 31 a a DT 33899 92 32 brass brass NN 33899 92 33 front front NN 33899 92 34 , , , 33899 92 35 screw screw VBD 33899 92 36 tilting tilting NN 33899 92 37 arrangements arrangement NNS 33899 92 38 and and CC 33899 92 39 other other JJ 33899 92 40 adornments adornment NNS 33899 92 41 ; ; : 33899 92 42 but but CC 33899 92 43 of of IN 33899 92 44 late late JJ 33899 92 45 years year NNS 33899 92 46 there there EX 33899 92 47 has have VBZ 33899 92 48 been be VBN 33899 92 49 a a DT 33899 92 50 wholesome wholesome JJ 33899 92 51 reaction reaction NN 33899 92 52 against against IN 33899 92 53 unnecessary unnecessary JJ 33899 92 54 finish finish NN 33899 92 55 , , , 33899 92 56 and and CC 33899 92 57 a a DT 33899 92 58 simple simple JJ 33899 92 59 metal metal NN 33899 92 60 body body NN 33899 92 61 of of IN 33899 92 62 some some DT 33899 92 63 description description NN 33899 92 64 is be VBZ 33899 92 65 now now RB 33899 92 66 chiefly chiefly RB 33899 92 67 the the DT 33899 92 68 order order NN 33899 92 69 of of IN 33899 92 70 the the DT 33899 92 71 day day NN 33899 92 72 . . . 33899 93 1 In in IN 33899 93 2 the the DT 33899 93 3 foregoing foregoing NN 33899 93 4 remarks remark VBZ 33899 93 5 the the DT 33899 93 6 various various JJ 33899 93 7 parts part NNS 33899 93 8 of of IN 33899 93 9 a a DT 33899 93 10 lantern lantern NN 33899 93 11 have have VBP 33899 93 12 been be VBN 33899 93 13 mentioned mention VBN 33899 93 14 in in IN 33899 93 15 what what WP 33899 93 16 I -PRON- PRP 33899 93 17 should should MD 33899 93 18 consider consider VB 33899 93 19 the the DT 33899 93 20 correct correct JJ 33899 93 21 order order NN 33899 93 22 , , , 33899 93 23 starting start VBG 33899 93 24 from from IN 33899 93 25 the the DT 33899 93 26 slide slide NN 33899 93 27 and and CC 33899 93 28 slide slide NN 33899 93 29 - - HYPH 33899 93 30 holder holder NN 33899 93 31 , , , 33899 93 32 and and CC 33899 93 33 so so RB 33899 93 34 to to TO 33899 93 35 speak speak VB 33899 93 36 building build VBG 33899 93 37 up up RP 33899 93 38 the the DT 33899 93 39 rest rest NN 33899 93 40 of of IN 33899 93 41 the the DT 33899 93 42 instrument instrument NN 33899 93 43 round round IN 33899 93 44 these these DT 33899 93 45 items item NNS 33899 93 46 ; ; : 33899 93 47 but but CC 33899 93 48 I -PRON- PRP 33899 93 49 now now RB 33899 93 50 propose propose VBP 33899 93 51 somewhat somewhat RB 33899 93 52 to to TO 33899 93 53 vary vary VB 33899 93 54 the the DT 33899 93 55 procedure procedure NN 33899 93 56 and and CC 33899 93 57 for for IN 33899 93 58 convenience convenience NN 33899 93 59 deal deal NN 33899 93 60 in in IN 33899 93 61 detail detail NN 33899 93 62 first first RB 33899 93 63 with with IN 33899 93 64 the the DT 33899 93 65 Radiant Radiant NNP 33899 93 66 , , , 33899 93 67 or or CC 33899 93 68 _ _ NNP 33899 93 69 Illuminant Illuminant NNP 33899 93 70 _ _ NNP 33899 93 71 . . . 33899 94 1 * * NFP 33899 94 2 * * NFP 33899 94 3 * * NFP 33899 94 4 * * NFP 33899 94 5 * * NFP 33899 94 6 CHAPTER chapter NN 33899 94 7 II ii CD 33899 94 8 THE the DT 33899 94 9 ILLUMINANT ILLUMINANT NNS 33899 94 10 The the DT 33899 94 11 first first JJ 33899 94 12 necessity necessity NN 33899 94 13 for for IN 33899 94 14 lantern lantern JJ 33899 94 15 projection projection NN 33899 94 16 is be VBZ 33899 94 17 a a DT 33899 94 18 strong strong JJ 33899 94 19 light light NN 33899 94 20 , , , 33899 94 21 and and CC 33899 94 22 this this DT 33899 94 23 can can MD 33899 94 24 be be VB 33899 94 25 obtained obtain VBN 33899 94 26 from from IN 33899 94 27 a a DT 33899 94 28 variety variety NN 33899 94 29 of of IN 33899 94 30 sources source NNS 33899 94 31 , , , 33899 94 32 the the DT 33899 94 33 principal principal JJ 33899 94 34 means mean VBZ 33899 94 35 in in IN 33899 94 36 common common JJ 33899 94 37 use use NN 33899 94 38 being be VBG 33899 94 39 approximately approximately RB 33899 94 40 in in IN 33899 94 41 order order NN 33899 94 42 of of IN 33899 94 43 excellence excellence NN 33899 94 44 as as IN 33899 94 45 follows follow VBZ 33899 94 46 : : : 33899 94 47 paraffin paraffin NN 33899 94 48 - - HYPH 33899 94 49 oil oil NN 33899 94 50 , , , 33899 94 51 incandescent incandescent NN 33899 94 52 spirit spirit NN 33899 94 53 , , , 33899 94 54 incandescent incandescent NN 33899 94 55 gas gas NN 33899 94 56 , , , 33899 94 57 acetylene acetylene NN 33899 94 58 , , , 33899 94 59 acetylene acetylene NN 33899 94 60 air air NNP 33899 94 61 blast blast NNP 33899 94 62 , , , 33899 94 63 oxyhydrogen oxyhydrogen NNP 33899 94 64 ( ( -LRB- 33899 94 65 limelight limelight NNP 33899 94 66 ) ) -RRB- 33899 94 67 , , , 33899 94 68 oxyether oxyether UH 33899 94 69 , , , 33899 94 70 and and CC 33899 94 71 electric electric JJ 33899 94 72 light light NN 33899 94 73 in in IN 33899 94 74 its -PRON- PRP$ 33899 94 75 various various JJ 33899 94 76 forms form NNS 33899 94 77 . . . 33899 95 1 The the DT 33899 95 2 ideal ideal JJ 33899 95 3 characteristics characteristic NNS 33899 95 4 to to TO 33899 95 5 be be VB 33899 95 6 sought seek VBN 33899 95 7 for for IN 33899 95 8 are be VBP 33899 95 9 ( ( -LRB- 33899 95 10 1 1 LS 33899 95 11 ) ) -RRB- 33899 95 12 great great JJ 33899 95 13 intrinsic intrinsic JJ 33899 95 14 brilliancy brilliancy NN 33899 95 15 ; ; : 33899 95 16 ( ( -LRB- 33899 95 17 2 2 LS 33899 95 18 ) ) -RRB- 33899 95 19 minimum minimum NN 33899 95 20 _ _ NNP 33899 95 21 size size NN 33899 95 22 _ _ NNP 33899 95 23 of of IN 33899 95 24 luminous luminous JJ 33899 95 25 spot spot NN 33899 95 26 ; ; , 33899 95 27 ( ( -LRB- 33899 95 28 3 3 LS 33899 95 29 ) ) -RRB- 33899 95 30 freedom freedom NN 33899 95 31 from from IN 33899 95 32 flicker flicker NN 33899 95 33 ; ; , 33899 95 34 ( ( -LRB- 33899 95 35 4 4 LS 33899 95 36 ) ) -RRB- 33899 95 37 freedom freedom NN 33899 95 38 from from IN 33899 95 39 smell smell NN 33899 95 40 ; ; : 33899 95 41 ( ( -LRB- 33899 95 42 5 5 LS 33899 95 43 ) ) -RRB- 33899 95 44 absence absence NN 33899 95 45 of of IN 33899 95 46 any any DT 33899 95 47 preponderating preponderate VBG 33899 95 48 colour colour NN 33899 95 49 ; ; : 33899 95 50 ( ( -LRB- 33899 95 51 6 6 LS 33899 95 52 ) ) -RRB- 33899 95 53 cheapness cheapness NN 33899 95 54 ; ; , 33899 95 55 and and CC 33899 95 56 ( ( -LRB- 33899 95 57 7 7 LS 33899 95 58 ) ) -RRB- 33899 95 59 convenience convenience NN 33899 95 60 . . . 33899 96 1 There there EX 33899 96 2 is be VBZ 33899 96 3 no no DT 33899 96 4 question question NN 33899 96 5 whatever whatever WDT 33899 96 6 as as IN 33899 96 7 to to IN 33899 96 8 which which WDT 33899 96 9 of of IN 33899 96 10 the the DT 33899 96 11 available available JJ 33899 96 12 sources source NNS 33899 96 13 of of IN 33899 96 14 light light NN 33899 96 15 most most RBS 33899 96 16 perfectly perfectly RB 33899 96 17 combines combine VBZ 33899 96 18 all all PDT 33899 96 19 the the DT 33899 96 20 above above JJ 33899 96 21 if if IN 33899 96 22 it -PRON- PRP 33899 96 23 is be VBZ 33899 96 24 available available JJ 33899 96 25 , , , 33899 96 26 viz viz NN 33899 96 27 . . . 33899 97 1 the the DT 33899 97 2 electric electric JJ 33899 97 3 arc arc NN 33899 97 4 . . . 33899 98 1 If if IN 33899 98 2 a a DT 33899 98 3 current current JJ 33899 98 4 supply supply NN 33899 98 5 is be VBZ 33899 98 6 in in IN 33899 98 7 { { -LRB- 33899 98 8 4 4 CD 33899 98 9 } } -RRB- 33899 98 10 the the DT 33899 98 11 building building NN 33899 98 12 , , , 33899 98 13 this this DT 33899 98 14 form form NN 33899 98 15 of of IN 33899 98 16 lighting lighting NN 33899 98 17 easily easily RB 33899 98 18 excels excel VBZ 33899 98 19 all all DT 33899 98 20 others other NNS 33899 98 21 , , , 33899 98 22 except except IN 33899 98 23 possibly possibly RB 33899 98 24 in in IN 33899 98 25 the the DT 33899 98 26 matter matter NN 33899 98 27 of of IN 33899 98 28 flicker flicker NN 33899 98 29 , , , 33899 98 30 and and CC 33899 98 31 even even RB 33899 98 32 in in IN 33899 98 33 this this DT 33899 98 34 respect respect NN 33899 98 35 there there EX 33899 98 36 is be VBZ 33899 98 37 very very RB 33899 98 38 little little JJ 33899 98 39 fault fault NN 33899 98 40 to to TO 33899 98 41 be be VB 33899 98 42 found find VBN 33899 98 43 with with IN 33899 98 44 it -PRON- PRP 33899 98 45 . . . 33899 99 1 From from IN 33899 99 2 all all DT 33899 99 3 other other JJ 33899 99 4 points point NNS 33899 99 5 of of IN 33899 99 6 view view NN 33899 99 7 it -PRON- PRP 33899 99 8 is be VBZ 33899 99 9 wellnigh wellnigh NN 33899 99 10 perfect perfect JJ 33899 99 11 , , , 33899 99 12 inasmuch inasmuch JJ 33899 99 13 as as IN 33899 99 14 it -PRON- PRP 33899 99 15 provides provide VBZ 33899 99 16 an an DT 33899 99 17 extremely extremely RB 33899 99 18 concentrated concentrated JJ 33899 99 19 and and CC 33899 99 20 intensely intensely RB 33899 99 21 luminous luminous JJ 33899 99 22 spot spot NN 33899 99 23 , , , 33899 99 24 of of IN 33899 99 25 almost almost RB 33899 99 26 perfect perfect JJ 33899 99 27 whiteness whiteness NN 33899 99 28 ( ( -LRB- 33899 99 29 if if IN 33899 99 30 anything anything NN 33899 99 31 slightly slightly RB 33899 99 32 bluish bluish JJ 33899 99 33 ) ) -RRB- 33899 99 34 , , , 33899 99 35 no no DT 33899 99 36 smell smell NN 33899 99 37 , , , 33899 99 38 comparatively comparatively RB 33899 99 39 little little JJ 33899 99 40 heat heat NN 33899 99 41 , , , 33899 99 42 convenient convenient JJ 33899 99 43 and and CC 33899 99 44 inexpensive inexpensive JJ 33899 99 45 . . . 33899 100 1 So so RB 33899 100 2 great great JJ 33899 100 3 is be VBZ 33899 100 4 the the DT 33899 100 5 advantage advantage NN 33899 100 6 of of IN 33899 100 7 the the DT 33899 100 8 electric electric JJ 33899 100 9 arc arc NN 33899 100 10 that that IN 33899 100 11 attempts attempt NNS 33899 100 12 have have VBP 33899 100 13 been be VBN 33899 100 14 made make VBN 33899 100 15 to to TO 33899 100 16 use use VB 33899 100 17 it -PRON- PRP 33899 100 18 from from IN 33899 100 19 accumulators accumulator NNS 33899 100 20 in in IN 33899 100 21 places place NNS 33899 100 22 where where WRB 33899 100 23 a a DT 33899 100 24 current current JJ 33899 100 25 supply supply NN 33899 100 26 is be VBZ 33899 100 27 not not RB 33899 100 28 available available JJ 33899 100 29 , , , 33899 100 30 but but CC 33899 100 31 this this DT 33899 100 32 can can MD 33899 100 33 not not RB 33899 100 34 be be VB 33899 100 35 seriously seriously RB 33899 100 36 recommended recommend VBN 33899 100 37 , , , 33899 100 38 except except IN 33899 100 39 in in IN 33899 100 40 special special JJ 33899 100 41 cases case NNS 33899 100 42 . . . 33899 101 1 Where where WRB 33899 101 2 an an DT 33899 101 3 electric electric JJ 33899 101 4 supply supply NN 33899 101 5 is be VBZ 33899 101 6 , , , 33899 101 7 however however RB 33899 101 8 , , , 33899 101 9 available available JJ 33899 101 10 there there EX 33899 101 11 can can MD 33899 101 12 be be VB 33899 101 13 no no DT 33899 101 14 real real JJ 33899 101 15 choice choice NN 33899 101 16 , , , 33899 101 17 whether whether IN 33899 101 18 the the DT 33899 101 19 lantern lantern NN 33899 101 20 is be VBZ 33899 101 21 required require VBN 33899 101 22 for for IN 33899 101 23 use use NN 33899 101 24 in in IN 33899 101 25 a a DT 33899 101 26 large large JJ 33899 101 27 hall hall NN 33899 101 28 or or CC 33899 101 29 a a DT 33899 101 30 small small JJ 33899 101 31 class class NN 33899 101 32 - - HYPH 33899 101 33 room room NN 33899 101 34 . . . 33899 102 1 The the DT 33899 102 2 advantages advantage NNS 33899 102 3 of of IN 33899 102 4 using use VBG 33899 102 5 the the DT 33899 102 6 arc arc NN 33899 102 7 are be VBP 33899 102 8 so so RB 33899 102 9 great great JJ 33899 102 10 that that IN 33899 102 11 no no DT 33899 102 12 other other JJ 33899 102 13 method method NN 33899 102 14 need nee MD 33899 102 15 be be VB 33899 102 16 seriously seriously RB 33899 102 17 considered consider VBN 33899 102 18 . . . 33899 103 1 The the DT 33899 103 2 one one CD 33899 103 3 real real JJ 33899 103 4 objection objection NN 33899 103 5 that that WDT 33899 103 6 I -PRON- PRP 33899 103 7 have have VBP 33899 103 8 heard hear VBN 33899 103 9 urged urge VBN 33899 103 10 against against IN 33899 103 11 it -PRON- PRP 33899 103 12 is be VBZ 33899 103 13 due due JJ 33899 103 14 , , , 33899 103 15 curiously curiously RB 33899 103 16 enough enough RB 33899 103 17 , , , 33899 103 18 to to IN 33899 103 19 its -PRON- PRP$ 33899 103 20 very very JJ 33899 103 21 perfection perfection NN 33899 103 22 , , , 33899 103 23 and and CC 33899 103 24 that that DT 33899 103 25 is is RB 33899 103 26 , , , 33899 103 27 that that IN 33899 103 28 it -PRON- PRP 33899 103 29 lends lend VBZ 33899 103 30 itself -PRON- PRP 33899 103 31 to to IN 33899 103 32 such such JJ 33899 103 33 exceedingly exceedingly RB 33899 103 34 sharp sharp JJ 33899 103 35 definition definition NN 33899 103 36 that that IN 33899 103 37 any any DT 33899 103 38 slight slight JJ 33899 103 39 imperfection imperfection NN 33899 103 40 in in IN 33899 103 41 the the DT 33899 103 42 slide slide NN 33899 103 43 is be VBZ 33899 103 44 too too RB 33899 103 45 faithfully faithfully RB 33899 103 46 reproduced reproduce VBN 33899 103 47 on on IN 33899 103 48 the the DT 33899 103 49 screen screen NN 33899 103 50 , , , 33899 103 51 for for IN 33899 103 52 which which WDT 33899 103 53 reason reason NN 33899 103 54 it -PRON- PRP 33899 103 55 is be VBZ 33899 103 56 sometimes sometimes RB 33899 103 57 recommended recommend VBN 33899 103 58 that that IN 33899 103 59 the the DT 33899 103 60 operator operator NN 33899 103 61 shall shall MD 33899 103 62 work work VB 33899 103 63 with with IN 33899 103 64 the the DT 33899 103 65 objective objective NN 33899 103 66 the the DT 33899 103 67 least least JJS 33899 103 68 fraction fraction NN 33899 103 69 out out IN 33899 103 70 of of IN 33899 103 71 focus focus NN 33899 103 72 ; ; : 33899 103 73 but but CC 33899 103 74 this this DT 33899 103 75 is be VBZ 33899 103 76 a a DT 33899 103 77 matter matter NN 33899 103 78 for for IN 33899 103 79 individual individual JJ 33899 103 80 taste taste NN 33899 103 81 and and CC 33899 103 82 judgment judgment NN 33899 103 83 . . . 33899 104 1 If if IN 33899 104 2 , , , 33899 104 3 however however RB 33899 104 4 , , , 33899 104 5 there there EX 33899 104 6 is be VBZ 33899 104 7 no no DT 33899 104 8 possibility possibility NN 33899 104 9 of of IN 33899 104 10 using use VBG 33899 104 11 the the DT 33899 104 12 electric electric JJ 33899 104 13 current current NN 33899 104 14 , , , 33899 104 15 one one CD 33899 104 16 of of IN 33899 104 17 the the DT 33899 104 18 other other JJ 33899 104 19 sources source NNS 33899 104 20 of of IN 33899 104 21 illumination illumination NN 33899 104 22 must must MD 33899 104 23 perforce perforce VB 33899 104 24 be be VB 33899 104 25 adopted adopt VBN 33899 104 26 , , , 33899 104 27 and and CC 33899 104 28 for for IN 33899 104 29 a a DT 33899 104 30 _ _ NNP 33899 104 31 large large JJ 33899 104 32 _ _ NNP 33899 104 33 hall hall NN 33899 104 34 this this DT 33899 104 35 can can MD 33899 104 36 only only RB 33899 104 37 be be VB 33899 104 38 limelight limelight VBN 33899 104 39 in in IN 33899 104 40 one one CD 33899 104 41 of of IN 33899 104 42 its -PRON- PRP$ 33899 104 43 many many JJ 33899 104 44 forms form NNS 33899 104 45 , , , 33899 104 46 viz viz NN 33899 104 47 . . . 33899 105 1 oxyhydrogen oxyhydrogen NNP 33899 105 2 , , , 33899 105 3 oxyether oxyether NNP 33899 105 4 , , , 33899 105 5 oxyacetylene oxyacetylene NNP 33899 105 6 , , , 33899 105 7 & & CC 33899 105 8 c. c. NNP 33899 105 9 As as IN 33899 105 10 regards regard VBZ 33899 105 11 results result NNS 33899 105 12 on on IN 33899 105 13 the the DT 33899 105 14 screen screen NN 33899 105 15 , , , 33899 105 16 this this DT 33899 105 17 light light NN 33899 105 18 compares compare VBZ 33899 105 19 well well RB 33899 105 20 even even RB 33899 105 21 against against IN 33899 105 22 the the DT 33899 105 23 electric electric JJ 33899 105 24 arc arc NN 33899 105 25 , , , 33899 105 26 but but CC 33899 105 27 it -PRON- PRP 33899 105 28 involves involve VBZ 33899 105 29 the the DT 33899 105 30 expense expense NN 33899 105 31 and and CC 33899 105 32 trouble trouble NN 33899 105 33 of of IN 33899 105 34 compressed compress VBN 33899 105 35 gas gas NN 33899 105 36 cylinders cylinder NNS 33899 105 37 , , , 33899 105 38 or or CC 33899 105 39 the the DT 33899 105 40 infinitely infinitely RB 33899 105 41 worse worse RBR 33899 105 42 recourse recourse JJ 33899 105 43 to to IN 33899 105 44 the the DT 33899 105 45 now now RB 33899 105 46 obsolete obsolete JJ 33899 105 47 method method NN 33899 105 48 of of IN 33899 105 49 filling fill VBG 33899 105 50 gas gas NN 33899 105 51 - - HYPH 33899 105 52 bags bag NNS 33899 105 53 . . . 33899 106 1 Limelight limelight NN 33899 106 2 is be VBZ 33899 106 3 therefore therefore RB 33899 106 4 now now RB 33899 106 5 but but CC 33899 106 6 little little JJ 33899 106 7 used used JJ 33899 106 8 in in IN 33899 106 9 this this DT 33899 106 10 country country NN 33899 106 11 , , , 33899 106 12 as as IN 33899 106 13 the the DT 33899 106 14 majority majority NN 33899 106 15 of of IN 33899 106 16 large large JJ 33899 106 17 halls hall NNS 33899 106 18 are be VBP 33899 106 19 equipped equip VBN 33899 106 20 with with IN 33899 106 21 the the DT 33899 106 22 electric electric JJ 33899 106 23 { { -LRB- 33899 106 24 5 5 CD 33899 106 25 } } -RRB- 33899 106 26 current current JJ 33899 106 27 , , , 33899 106 28 and and CC 33899 106 29 for for IN 33899 106 30 smaller small JJR 33899 106 31 buildings building NNS 33899 106 32 it -PRON- PRP 33899 106 33 is be VBZ 33899 106 34 deemed deem VBN 33899 106 35 unnecessary unnecessary JJ 33899 106 36 and and CC 33899 106 37 too too RB 33899 106 38 expensive expensive JJ 33899 106 39 . . . 33899 107 1 ACETYLENE acetylene RB 33899 107 2 is be VBZ 33899 107 3 undoubtedly undoubtedly RB 33899 107 4 the the DT 33899 107 5 illuminant illuminant NN 33899 107 6 most most RBS 33899 107 7 in in IN 33899 107 8 favour favour NN 33899 107 9 next next JJ 33899 107 10 to to IN 33899 107 11 electric electric JJ 33899 107 12 light light NN 33899 107 13 , , , 33899 107 14 as as IN 33899 107 15 the the DT 33899 107 16 light light NN 33899 107 17 is be VBZ 33899 107 18 brilliant brilliant JJ 33899 107 19 enough enough RB 33899 107 20 to to TO 33899 107 21 illuminate illuminate VB 33899 107 22 a a DT 33899 107 23 picture picture NN 33899 107 24 12 12 CD 33899 107 25 feet foot NNS 33899 107 26 in in IN 33899 107 27 diameter diameter NN 33899 107 28 at at IN 33899 107 29 a a DT 33899 107 30 distance distance NN 33899 107 31 up up RB 33899 107 32 to to IN 33899 107 33 , , , 33899 107 34 say say VB 33899 107 35 , , , 33899 107 36 30 30 CD 33899 107 37 feet foot NNS 33899 107 38 from from IN 33899 107 39 the the DT 33899 107 40 screen screen NN 33899 107 41 , , , 33899 107 42 and and CC 33899 107 43 this this DT 33899 107 44 suffices suffice VBZ 33899 107 45 in in IN 33899 107 46 a a DT 33899 107 47 large large JJ 33899 107 48 majority majority NN 33899 107 49 of of IN 33899 107 50 cases case NNS 33899 107 51 , , , 33899 107 52 and and CC 33899 107 53 acetylene acetylene NN 33899 107 54 is be VBZ 33899 107 55 comparatively comparatively RB 33899 107 56 cheap cheap JJ 33899 107 57 , , , 33899 107 58 and and CC 33899 107 59 reasonably reasonably RB 33899 107 60 simple simple JJ 33899 107 61 to to TO 33899 107 62 work work VB 33899 107 63 . . . 33899 108 1 INCANDESCENT INCANDESCENT NNP 33899 108 2 - - HYPH 33899 108 3 GAS GAS NNP 33899 108 4 is be VBZ 33899 108 5 often often RB 33899 108 6 employed employ VBN 33899 108 7 for for IN 33899 108 8 small small JJ 33899 108 9 class class NN 33899 108 10 - - HYPH 33899 108 11 rooms room NNS 33899 108 12 and and CC 33899 108 13 is be VBZ 33899 108 14 fairly fairly RB 33899 108 15 effective effective JJ 33899 108 16 for for IN 33899 108 17 a a DT 33899 108 18 picture picture NN 33899 108 19 not not RB 33899 108 20 exceeding exceed VBG 33899 108 21 9 9 CD 33899 108 22 or or CC 33899 108 23 10 10 CD 33899 108 24 feet foot NNS 33899 108 25 in in IN 33899 108 26 diameter diameter NN 33899 108 27 , , , 33899 108 28 and and CC 33899 108 29 the the DT 33899 108 30 same same JJ 33899 108 31 can can MD 33899 108 32 be be VB 33899 108 33 said say VBN 33899 108 34 of of IN 33899 108 35 the the DT 33899 108 36 same same JJ 33899 108 37 type type NN 33899 108 38 of of IN 33899 108 39 burner burner NN 33899 108 40 heated heat VBN 33899 108 41 by by IN 33899 108 42 methylated methylated JJ 33899 108 43 spirit spirit NNP 33899 108 44 . . . 33899 109 1 PARAFFIN PARAFFIN NNP 33899 109 2 - - HYPH 33899 109 3 OIL OIL NNP 33899 109 4 is be VBZ 33899 109 5 the the DT 33899 109 6 poorest poor JJS 33899 109 7 of of IN 33899 109 8 all all DT 33899 109 9 present present JJ 33899 109 10 - - HYPH 33899 109 11 day day NN 33899 109 12 forms form NNS 33899 109 13 of of IN 33899 109 14 lantern lantern JJ 33899 109 15 illuminants illuminant NNS 33899 109 16 . . . 33899 110 1 The the DT 33899 110 2 flame flame NN 33899 110 3 is be VBZ 33899 110 4 large large JJ 33899 110 5 , , , 33899 110 6 impairing impair VBG 33899 110 7 the the DT 33899 110 8 definition definition NN 33899 110 9 , , , 33899 110 10 yellow yellow JJ 33899 110 11 in in IN 33899 110 12 colour colour NN 33899 110 13 , , , 33899 110 14 uneven uneven RB 33899 110 15 in in IN 33899 110 16 illumination illumination NN 33899 110 17 , , , 33899 110 18 liable liable JJ 33899 110 19 to to TO 33899 110 20 smoke smoke VB 33899 110 21 and and CC 33899 110 22 smell smell NN 33899 110 23 , , , 33899 110 24 and and CC 33899 110 25 barely barely RB 33899 110 26 equal equal JJ 33899 110 27 to to IN 33899 110 28 incandescent incandescent JJ 33899 110 29 gas gas NN 33899 110 30 in in IN 33899 110 31 illuminating illuminate VBG 33899 110 32 power power NN 33899 110 33 . . . 33899 111 1 It -PRON- PRP 33899 111 2 is be VBZ 33899 111 3 therefore therefore RB 33899 111 4 going go VBG 33899 111 5 gradually gradually RB 33899 111 6 out out IN 33899 111 7 of of IN 33899 111 8 use use NN 33899 111 9 in in IN 33899 111 10 this this DT 33899 111 11 country country NN 33899 111 12 , , , 33899 111 13 but but CC 33899 111 14 in in IN 33899 111 15 out out RB 33899 111 16 - - HYPH 33899 111 17 of of IN 33899 111 18 - - HYPH 33899 111 19 the the DT 33899 111 20 - - HYPH 33899 111 21 way way NN 33899 111 22 places place NNS 33899 111 23 , , , 33899 111 24 especially especially RB 33899 111 25 abroad abroad RB 33899 111 26 , , , 33899 111 27 it -PRON- PRP 33899 111 28 is be VBZ 33899 111 29 sometimes sometimes RB 33899 111 30 the the DT 33899 111 31 only only JJ 33899 111 32 practicable practicable JJ 33899 111 33 light light NN 33899 111 34 , , , 33899 111 35 and and CC 33899 111 36 is be VBZ 33899 111 37 therefore therefore RB 33899 111 38 still still RB 33899 111 39 employed employ VBN 33899 111 40 from from IN 33899 111 41 the the DT 33899 111 42 best good JJS 33899 111 43 of of IN 33899 111 44 all all DT 33899 111 45 reasons reason NNS 33899 111 46 , , , 33899 111 47 necessity necessity NN 33899 111 48 . . . 33899 112 1 It -PRON- PRP 33899 112 2 is be VBZ 33899 112 3 not not RB 33899 112 4 the the DT 33899 112 5 intention intention NN 33899 112 6 of of IN 33899 112 7 the the DT 33899 112 8 author author NN 33899 112 9 to to TO 33899 112 10 give give VB 33899 112 11 precise precise JJ 33899 112 12 working working NN 33899 112 13 instruction instruction NN 33899 112 14 for for IN 33899 112 15 all all DT 33899 112 16 and and CC 33899 112 17 every every DT 33899 112 18 variety variety NN 33899 112 19 of of IN 33899 112 20 the the DT 33899 112 21 above above JJ 33899 112 22 illuminants illuminant NNS 33899 112 23 as as IN 33899 112 24 manufactured manufacture VBN 33899 112 25 by by IN 33899 112 26 different different JJ 33899 112 27 firms firm NNS 33899 112 28 . . . 33899 113 1 For for IN 33899 113 2 such such PDT 33899 113 3 the the DT 33899 113 4 reader reader NN 33899 113 5 must must MD 33899 113 6 be be VB 33899 113 7 referred refer VBN 33899 113 8 to to IN 33899 113 9 the the DT 33899 113 10 directions direction NNS 33899 113 11 usually usually RB 33899 113 12 issued issue VBN 33899 113 13 by by IN 33899 113 14 the the DT 33899 113 15 makers maker NNS 33899 113 16 themselves -PRON- PRP 33899 113 17 , , , 33899 113 18 but but CC 33899 113 19 a a DT 33899 113 20 general general JJ 33899 113 21 description description NN 33899 113 22 of of IN 33899 113 23 the the DT 33899 113 24 various various JJ 33899 113 25 types type NNS 33899 113 26 offered offer VBN 33899 113 27 for for IN 33899 113 28 choice choice NN 33899 113 29 will will MD 33899 113 30 not not RB 33899 113 31 be be VB 33899 113 32 out out IN 33899 113 33 of of IN 33899 113 34 place place NN 33899 113 35 , , , 33899 113 36 and and CC 33899 113 37 it -PRON- PRP 33899 113 38 will will MD 33899 113 39 be be VB 33899 113 40 more more RBR 33899 113 41 convenient convenient JJ 33899 113 42 to to TO 33899 113 43 begin begin VB 33899 113 44 with with IN 33899 113 45 the the DT 33899 113 46 poorest poor JJS 33899 113 47 , , , 33899 113 48 viz viz NN 33899 113 49 . . . 33899 114 1 paraffin paraffin NNP 33899 114 2 - - HYPH 33899 114 3 oil oil NN 33899 114 4 , , , 33899 114 5 and and CC 33899 114 6 finish finish VB 33899 114 7 with with IN 33899 114 8 the the DT 33899 114 9 most most RBS 33899 114 10 perfect perfect JJ 33899 114 11 , , , 33899 114 12 the the DT 33899 114 13 electric electric JJ 33899 114 14 arc arc NN 33899 114 15 . . . 33899 115 1 * * NFP 33899 115 2 * * NFP 33899 115 3 * * NFP 33899 115 4 * * NFP 33899 115 5 * * NFP 33899 115 6 { { -LRB- 33899 115 7 6 6 CD 33899 115 8 } } -RRB- 33899 115 9 CHAPTER CHAPTER NNP 33899 115 10 III iii CD 33899 115 11 PARAFFIN PARAFFIN NNP 33899 115 12 - - HYPH 33899 115 13 OIL oil NN 33899 115 14 LAMPS LAMPS NNP 33899 115 15 , , , 33899 115 16 INCANDESCENT INCANDESCENT NNP 33899 115 17 GAS gas NN 33899 115 18 AND and CC 33899 115 19 SPIRIT spirit NN 33899 115 20 BURNERS burner NNS 33899 115 21 [ [ -LRB- 33899 115 22 Illustration illustration NN 33899 115 23 : : : 33899 115 24 FIG FIG NNP 33899 115 25 . . . 33899 116 1 1.--Oil 1.--oil CD 33899 116 2 Lamp Lamp NNP 33899 116 3 . . . 33899 116 4 ] ] -RRB- 33899 117 1 There there EX 33899 117 2 are be VBP 33899 117 3 several several JJ 33899 117 4 varieties variety NNS 33899 117 5 of of IN 33899 117 6 oil oil NN 33899 117 7 lamps lamp NNS 33899 117 8 on on IN 33899 117 9 the the DT 33899 117 10 market market NN 33899 117 11 , , , 33899 117 12 but but CC 33899 117 13 in in IN 33899 117 14 practically practically RB 33899 117 15 every every DT 33899 117 16 case case NN 33899 117 17 they -PRON- PRP 33899 117 18 take take VBP 33899 117 19 the the DT 33899 117 20 same same JJ 33899 117 21 general general JJ 33899 117 22 form form NN 33899 117 23 , , , 33899 117 24 a a DT 33899 117 25 metal metal NN 33899 117 26 reservoir reservoir NN 33899 117 27 sliding slide VBG 33899 117 28 in in IN 33899 117 29 grooves groove NNS 33899 117 30 in in IN 33899 117 31 the the DT 33899 117 32 lantern lantern JJ 33899 117 33 body body NN 33899 117 34 and and CC 33899 117 35 holding hold VBG 33899 117 36 approximately approximately RB 33899 117 37 a a DT 33899 117 38 pint pint NN 33899 117 39 of of IN 33899 117 40 oil oil NN 33899 117 41 with with IN 33899 117 42 ( ( -LRB- 33899 117 43 usually usually RB 33899 117 44 ) ) -RRB- 33899 117 45 four four CD 33899 117 46 wicks wick NNS 33899 117 47 _ _ NNP 33899 117 48 nearly nearly RB 33899 117 49 _ _ NNP 33899 117 50 parallel parallel NN 33899 117 51 , , , 33899 117 52 but but CC 33899 117 53 slightly slightly RB 33899 117 54 converging converge VBG 33899 117 55 from from IN 33899 117 56 rear rear NN 33899 117 57 to to IN 33899 117 58 front front VB 33899 117 59 , , , 33899 117 60 these these DT 33899 117 61 enclosed enclose VBN 33899 117 62 in in IN 33899 117 63 a a DT 33899 117 64 flame flame NN 33899 117 65 chamber chamber NN 33899 117 66 of of IN 33899 117 67 Russian russian JJ 33899 117 68 iron iron NN 33899 117 69 , , , 33899 117 70 with with IN 33899 117 71 _ _ NNP 33899 117 72 loose loose JJ 33899 117 73 _ _ NNP 33899 117 74 well well RB 33899 117 75 - - HYPH 33899 117 76 annealed anneal VBN 33899 117 77 ends end NNS 33899 117 78 of of IN 33899 117 79 sheet sheet NN 33899 117 80 glass glass NN 33899 117 81 and and CC 33899 117 82 an an DT 33899 117 83 adjustable adjustable JJ 33899 117 84 reflector reflector NN 33899 117 85 at at IN 33899 117 86 the the DT 33899 117 87 back back NN 33899 117 88 , , , 33899 117 89 or or CC 33899 117 90 sometimes sometimes RB 33899 117 91 the the DT 33899 117 92 reflector reflector NN 33899 117 93 itself -PRON- PRP 33899 117 94 forms form VBZ 33899 117 95 the the DT 33899 117 96 rear rear JJ 33899 117 97 end end NN 33899 117 98 of of IN 33899 117 99 the the DT 33899 117 100 flame flame NN 33899 117 101 chamber chamber NN 33899 117 102 . . . 33899 118 1 The the DT 33899 118 2 chimney chimney NN 33899 118 3 must must MD 33899 118 4 be be VB 33899 118 5 tall tall JJ 33899 118 6 and and CC 33899 118 7 is be VBZ 33899 118 8 now now RB 33899 118 9 usually usually RB 33899 118 10 made make VBN 33899 118 11 adjustable adjustable JJ 33899 118 12 , , , 33899 118 13 though though IN 33899 118 14 I -PRON- PRP 33899 118 15 have have VBP 33899 118 16 never never RB 33899 118 17 been be VBN 33899 118 18 able able JJ 33899 118 19 to to TO 33899 118 20 trace trace VB 33899 118 21 any any DT 33899 118 22 real real JJ 33899 118 23 advantage advantage NN 33899 118 24 from from IN 33899 118 25 this this DT 33899 118 26 complication complication NN 33899 118 27 { { -LRB- 33899 118 28 7 7 CD 33899 118 29 } } -RRB- 33899 118 30 ( ( -LRB- 33899 118 31 Fig fig NN 33899 118 32 . . . 33899 119 1 1 1 LS 33899 119 2 ) ) -RRB- 33899 119 3 . . . 33899 120 1 The the DT 33899 120 2 whole whole JJ 33899 120 3 secret secret NN 33899 120 4 of of IN 33899 120 5 obtaining obtain VBG 33899 120 6 the the DT 33899 120 7 best good JJS 33899 120 8 results result NNS 33899 120 9 from from IN 33899 120 10 these these DT 33899 120 11 lamps lamp NNS 33899 120 12 may may MD 33899 120 13 be be VB 33899 120 14 summed sum VBN 33899 120 15 up--_good up--_good NNP 33899 120 16 oil oil NN 33899 120 17 and and CC 33899 120 18 perfect perfect JJ 33899 120 19 cleanliness cleanliness NNP 33899 120 20 _ _ NNP 33899 120 21 ; ; : 33899 120 22 and and CC 33899 120 23 it -PRON- PRP 33899 120 24 is be VBZ 33899 120 25 wonderful wonderful JJ 33899 120 26 what what WP 33899 120 27 can can MD 33899 120 28 be be VB 33899 120 29 done do VBN 33899 120 30 when when WRB 33899 120 31 these these DT 33899 120 32 points point NNS 33899 120 33 are be VBP 33899 120 34 properly properly RB 33899 120 35 attended attend VBN 33899 120 36 to to TO 33899 120 37 . . . 33899 121 1 Care care NN 33899 121 2 should should MD 33899 121 3 be be VB 33899 121 4 taken take VBN 33899 121 5 in in IN 33899 121 6 trimming trim VBG 33899 121 7 the the DT 33899 121 8 wicks wick NNS 33899 121 9 to to TO 33899 121 10 see see VB 33899 121 11 that that IN 33899 121 12 no no DT 33899 121 13 charred char VBN 33899 121 14 parts part NNS 33899 121 15 fall fall VBP 33899 121 16 down down RP 33899 121 17 between between IN 33899 121 18 the the DT 33899 121 19 wick wick JJ 33899 121 20 holders holder NNS 33899 121 21 , , , 33899 121 22 but but CC 33899 121 23 it -PRON- PRP 33899 121 24 makes make VBZ 33899 121 25 little little JJ 33899 121 26 difference difference NN 33899 121 27 whether whether IN 33899 121 28 the the DT 33899 121 29 trimming trim VBG 33899 121 30 is be VBZ 33899 121 31 done do VBN 33899 121 32 with with IN 33899 121 33 scissors scissor NNS 33899 121 34 or or CC 33899 121 35 by by IN 33899 121 36 rubbing rub VBG 33899 121 37 with with IN 33899 121 38 the the DT 33899 121 39 finger finger NN 33899 121 40 . . . 33899 122 1 Special special JJ 33899 122 2 lamp lamp NN 33899 122 3 scissors scissor NNS 33899 122 4 are be VBP 33899 122 5 sold sell VBN 33899 122 6 by by IN 33899 122 7 all all DT 33899 122 8 makers maker NNS 33899 122 9 with with IN 33899 122 10 a a DT 33899 122 11 large large JJ 33899 122 12 flat flat NN 33899 122 13 on on IN 33899 122 14 one one CD 33899 122 15 side side NN 33899 122 16 to to TO 33899 122 17 catch catch VB 33899 122 18 the the DT 33899 122 19 portions portion NNS 33899 122 20 cut cut VBD 33899 122 21 off off RP 33899 122 22 . . . 33899 123 1 These these DT 33899 123 2 lamps lamp NNS 33899 123 3 should should MD 33899 123 4 be be VB 33899 123 5 well well RB 33899 123 6 rubbed rub VBN 33899 123 7 over over IN 33899 123 8 the the DT 33899 123 9 last last JJ 33899 123 10 thing thing NN 33899 123 11 before before IN 33899 123 12 use use NN 33899 123 13 , , , 33899 123 14 as as IN 33899 123 15 paraffin paraffin NN 33899 123 16 - - HYPH 33899 123 17 oil oil NN 33899 123 18 is be VBZ 33899 123 19 apt apt JJ 33899 123 20 to to IN 33899 123 21 ' ' `` 33899 123 22 creep creep VB 33899 123 23 , , , 33899 123 24 ' ' '' 33899 123 25 and and CC 33899 123 26 the the DT 33899 123 27 operator operator NN 33899 123 28 does do VBZ 33899 123 29 not not RB 33899 123 30 want want VB 33899 123 31 to to TO 33899 123 32 be be VB 33899 123 33 told tell VBN 33899 123 34 that that IN 33899 123 35 his -PRON- PRP$ 33899 123 36 apparatus apparatus NN 33899 123 37 is be VBZ 33899 123 38 suggestive suggestive JJ 33899 123 39 of of IN 33899 123 40 a a DT 33899 123 41 fried fried JJ 33899 123 42 fish fish NN 33899 123 43 shop shop NN 33899 123 44 . . . 33899 124 1 In in IN 33899 124 2 working work VBG 33899 124 3 with with IN 33899 124 4 these these DT 33899 124 5 lamps lamp NNS 33899 124 6 it -PRON- PRP 33899 124 7 is be VBZ 33899 124 8 difficult difficult JJ 33899 124 9 to to TO 33899 124 10 avoid avoid VB 33899 124 11 a a DT 33899 124 12 dark dark JJ 33899 124 13 streak streak NN 33899 124 14 down down IN 33899 124 15 the the DT 33899 124 16 centre centre NN 33899 124 17 of of IN 33899 124 18 the the DT 33899 124 19 sheet sheet NN 33899 124 20 , , , 33899 124 21 representing represent VBG 33899 124 22 the the DT 33899 124 23 space space NN 33899 124 24 between between IN 33899 124 25 the the DT 33899 124 26 two two CD 33899 124 27 centre centre NN 33899 124 28 wicks wick NNS 33899 124 29 ; ; , 33899 124 30 to to IN 33899 124 31 a a DT 33899 124 32 certain certain JJ 33899 124 33 extent extent NN 33899 124 34 this this DT 33899 124 35 can can MD 33899 124 36 be be VB 33899 124 37 obviated obviate VBN 33899 124 38 by by IN 33899 124 39 adjusting adjust VBG 33899 124 40 the the DT 33899 124 41 reflector reflector NN 33899 124 42 , , , 33899 124 43 and and CC 33899 124 44 in in IN 33899 124 45 any any DT 33899 124 46 case case NN 33899 124 47 is be VBZ 33899 124 48 not not RB 33899 124 49 very very RB 33899 124 50 obvious obvious JJ 33899 124 51 when when WRB 33899 124 52 the the DT 33899 124 53 slide slide NN 33899 124 54 is be VBZ 33899 124 55 in in IN 33899 124 56 place place NN 33899 124 57 . . . 33899 125 1 Lamps lamp NNS 33899 125 2 constructed construct VBD 33899 125 3 with with IN 33899 125 4 either either CC 33899 125 5 three three CD 33899 125 6 or or CC 33899 125 7 five five CD 33899 125 8 wicks wick NNS 33899 125 9 are be VBP 33899 125 10 better well JJR 33899 125 11 in in IN 33899 125 12 this this DT 33899 125 13 respect respect NN 33899 125 14 , , , 33899 125 15 but but CC 33899 125 16 the the DT 33899 125 17 former former JJ 33899 125 18 are be VBP 33899 125 19 usually usually RB 33899 125 20 considered consider VBN 33899 125 21 to to TO 33899 125 22 be be VB 33899 125 23 too too RB 33899 125 24 poor poor JJ 33899 125 25 in in IN 33899 125 26 illuminating illuminate VBG 33899 125 27 power power NN 33899 125 28 , , , 33899 125 29 and and CC 33899 125 30 the the DT 33899 125 31 latter latter JJ 33899 125 32 are be VBP 33899 125 33 apt apt JJ 33899 125 34 to to TO 33899 125 35 crack crack VB 33899 125 36 the the DT 33899 125 37 sheet sheet NN 33899 125 38 - - HYPH 33899 125 39 glass glass NN 33899 125 40 ends end NNS 33899 125 41 by by IN 33899 125 42 excessive excessive JJ 33899 125 43 heat heat NN 33899 125 44 . . . 33899 126 1 INCANDESCENT INCANDESCENT NNP 33899 126 2 GAS.--Incandescent GAS.--Incandescent NNP 33899 126 3 gas gas NN 33899 126 4 burners burner NNS 33899 126 5 do do VBP 33899 126 6 not not RB 33899 126 7 need need VB 33899 126 8 much much JJ 33899 126 9 description description NN 33899 126 10 , , , 33899 126 11 as as IN 33899 126 12 they -PRON- PRP 33899 126 13 are be VBP 33899 126 14 practically practically RB 33899 126 15 similar similar JJ 33899 126 16 to to IN 33899 126 17 those those DT 33899 126 18 in in IN 33899 126 19 general general JJ 33899 126 20 use use NN 33899 126 21 for for IN 33899 126 22 house house NNP 33899 126 23 lighting lighting NNP 33899 126 24 . . . 33899 127 1 They -PRON- PRP 33899 127 2 may may MD 33899 127 3 be be VB 33899 127 4 either either DT 33899 127 5 of of IN 33899 127 6 the the DT 33899 127 7 erect erect NN 33899 127 8 or or CC 33899 127 9 inverted invert VBN 33899 127 10 forms form NNS 33899 127 11 , , , 33899 127 12 the the DT 33899 127 13 latter latter JJ 33899 127 14 being be VBG 33899 127 15 preferable preferable JJ 33899 127 16 owing owing NN 33899 127 17 to to IN 33899 127 18 the the DT 33899 127 19 light light NN 33899 127 20 being be VBG 33899 127 21 more more RBR 33899 127 22 concentrated concentrated JJ 33899 127 23 , , , 33899 127 24 and and CC 33899 127 25 a a DT 33899 127 26 reflector reflector NN 33899 127 27 is be VBZ 33899 127 28 provided provide VBN 33899 127 29 to to TO 33899 127 30 increase increase VB 33899 127 31 the the DT 33899 127 32 illumination illumination NN 33899 127 33 ( ( -LRB- 33899 127 34 Fig fig NN 33899 127 35 . . . 33899 128 1 2 2 LS 33899 128 2 ) ) -RRB- 33899 128 3 . . . 33899 129 1 These these DT 33899 129 2 reflectors reflector NNS 33899 129 3 should should MD 33899 129 4 be be VB 33899 129 5 _ _ NNP 33899 129 6 spherical spherical JJ 33899 129 7 _ _ NNP 33899 129 8 and and CC 33899 129 9 so so RB 33899 129 10 adjusted adjust VBD 33899 129 11 that that IN 33899 129 12 the the DT 33899 129 13 radiant radiant NN 33899 129 14 is be VBZ 33899 129 15 in in IN 33899 129 16 the the DT 33899 129 17 centre centre NN 33899 129 18 of of IN 33899 129 19 curvature curvature NN 33899 129 20 , , , 33899 129 21 thus thus RB 33899 129 22 ensuring ensure VBG 33899 129 23 that that IN 33899 129 24 the the DT 33899 129 25 light light NN 33899 129 26 from from IN 33899 129 27 the the DT 33899 129 28 reflector reflector NN 33899 129 29 passes pass VBZ 33899 129 30 again again RB 33899 129 31 through through IN 33899 129 32 the the DT 33899 129 33 original original JJ 33899 129 34 source source NN 33899 129 35 . . . 33899 130 1 If if IN 33899 130 2 this this DT 33899 130 3 point point NN 33899 130 4 is be VBZ 33899 130 5 not not RB 33899 130 6 attended attend VBN 33899 130 7 to to TO 33899 130 8 , , , 33899 130 9 we -PRON- PRP 33899 130 10 shall shall MD 33899 130 11 be be VB 33899 130 12 dealing deal VBG 33899 130 13 with with IN 33899 130 14 essentially essentially RB 33899 130 15 two two CD 33899 130 16 sources source NNS 33899 130 17 of of IN 33899 130 18 light light NN 33899 130 19 instead instead RB 33899 130 20 of of IN 33899 130 21 one one CD 33899 130 22 , , , 33899 130 23 to to IN 33899 130 24 the the DT 33899 130 25 detriment detriment NN 33899 130 26 of of IN 33899 130 27 the the DT 33899 130 28 definition definition NN 33899 130 29 . . . 33899 131 1 The the DT 33899 131 2 same same JJ 33899 131 3 remark remark NN 33899 131 4 applies apply VBZ 33899 131 5 to to IN 33899 131 6 every every DT 33899 131 7 lantern lantern JJ 33899 131 8 illuminant illuminant JJ 33899 131 9 { { -LRB- 33899 131 10 8 8 CD 33899 131 11 } } -RRB- 33899 131 12 which which WDT 33899 131 13 is be VBZ 33899 131 14 supplemented supplement VBN 33899 131 15 by by IN 33899 131 16 a a DT 33899 131 17 reflector reflector NN 33899 131 18 , , , 33899 131 19 and and CC 33899 131 20 it -PRON- PRP 33899 131 21 is be VBZ 33899 131 22 extraordinary extraordinary JJ 33899 131 23 how how WRB 33899 131 24 often often RB 33899 131 25 it -PRON- PRP 33899 131 26 is be VBZ 33899 131 27 neglected neglect VBN 33899 131 28 by by IN 33899 131 29 the the DT 33899 131 30 manufacturer manufacturer NN 33899 131 31 . . . 33899 132 1 Of of RB 33899 132 2 course course RB 33899 132 3 the the DT 33899 132 4 opacity opacity NN 33899 132 5 of of IN 33899 132 6 the the DT 33899 132 7 illuminant illuminant JJ 33899 132 8 destroys destroy NNS 33899 132 9 much much JJ 33899 132 10 of of IN 33899 132 11 the the DT 33899 132 12 efficiency efficiency NN 33899 132 13 of of IN 33899 132 14 the the DT 33899 132 15 reflector reflector NN 33899 132 16 , , , 33899 132 17 and and CC 33899 132 18 hence hence RB 33899 132 19 in in IN 33899 132 20 the the DT 33899 132 21 case case NN 33899 132 22 of of IN 33899 132 23 incandescent incandescent JJ 33899 132 24 gas gas NN 33899 132 25 mantles mantle NNS 33899 132 26 there there EX 33899 132 27 is be VBZ 33899 132 28 not not RB 33899 132 29 much much RB 33899 132 30 real real JJ 33899 132 31 gain gain NN 33899 132 32 in in IN 33899 132 33 making make VBG 33899 132 34 use use NN 33899 132 35 of of IN 33899 132 36 them -PRON- PRP 33899 132 37 , , , 33899 132 38 but but CC 33899 132 39 with with IN 33899 132 40 these these DT 33899 132 41 comparatively comparatively RB 33899 132 42 weak weak JJ 33899 132 43 illuminants illuminant NNS 33899 132 44 every every DT 33899 132 45 fraction fraction NN 33899 132 46 tells tell VBZ 33899 132 47 , , , 33899 132 48 and and CC 33899 132 49 the the DT 33899 132 50 reflector reflector NN 33899 132 51 does do VBZ 33899 132 52 not not RB 33899 132 53 add add VB 33899 132 54 much much JJ 33899 132 55 to to IN 33899 132 56 the the DT 33899 132 57 cost cost NN 33899 132 58 . . . 33899 133 1 [ [ -LRB- 33899 133 2 Illustration illustration NN 33899 133 3 : : : 33899 133 4 FIG FIG NNP 33899 133 5 . . . 33899 134 1 2.--Inverted 2.--inverted CD 33899 134 2 Incandescent Incandescent NNP 33899 134 3 Lamp Lamp NNP 33899 134 4 . . . 33899 134 5 ] ] -RRB- 33899 135 1 In in IN 33899 135 2 light light NN 33899 135 3 the the DT 33899 135 4 inverted invert VBN 33899 135 5 gas gas NN 33899 135 6 burner burner NN 33899 135 7 is be VBZ 33899 135 8 very very RB 33899 135 9 little little JJ 33899 135 10 superior superior JJ 33899 135 11 to to IN 33899 135 12 oil oil NN 33899 135 13 , , , 33899 135 14 but but CC 33899 135 15 it -PRON- PRP 33899 135 16 is be VBZ 33899 135 17 whiter white JJR 33899 135 18 , , , 33899 135 19 slightly slightly RB 33899 135 20 more more RBR 33899 135 21 concentrated concentrated JJ 33899 135 22 , , , 33899 135 23 and and CC 33899 135 24 freer free JJR 33899 135 25 from from IN 33899 135 26 smell smell NN 33899 135 27 , , , 33899 135 28 and and CC 33899 135 29 therefore therefore RB 33899 135 30 to to TO 33899 135 31 be be VB 33899 135 32 regarded regard VBN 33899 135 33 as as IN 33899 135 34 preferable preferable JJ 33899 135 35 if if IN 33899 135 36 a a DT 33899 135 37 supply supply NN 33899 135 38 of of IN 33899 135 39 gas gas NN 33899 135 40 is be VBZ 33899 135 41 available available JJ 33899 135 42 . . . 33899 136 1 METHYLATED methylated JJ 33899 136 2 SPIRIT SPIRIT NNP 33899 136 3 BURNERS.--Incandescent BURNERS.--Incandescent NNP 33899 136 4 mantles mantle NNS 33899 136 5 heated heat VBN 33899 136 6 by by IN 33899 136 7 methylated methylated JJ 33899 136 8 spirit spirit NN 33899 136 9 are be VBP 33899 136 10 also also RB 33899 136 11 largely largely RB 33899 136 12 used use VBN 33899 136 13 , , , 33899 136 14 and and CC 33899 136 15 provide provide VB 33899 136 16 a a DT 33899 136 17 light light NN 33899 136 18 decidedly decidedly RB 33899 136 19 superior superior JJ 33899 136 20 to to IN 33899 136 21 gas gas NN 33899 136 22 and and CC 33899 136 23 nearly nearly RB 33899 136 24 equal equal JJ 33899 136 25 to to TO 33899 136 26 acetylene acetylene VB 33899 136 27 . . . 33899 137 1 Some some DT 33899 137 2 arrangement arrangement NN 33899 137 3 must must MD 33899 137 4 be be VB 33899 137 5 made make VBN 33899 137 6 for for IN 33899 137 7 volatilising volatilise VBG 33899 137 8 the the DT 33899 137 9 spirit spirit NN 33899 137 10 and and CC 33899 137 11 driving drive VBG 33899 137 12 the the DT 33899 137 13 vapour vapour NN 33899 137 14 out out RB 33899 137 15 under under IN 33899 137 16 pressure pressure NN 33899 137 17 , , , 33899 137 18 and and CC 33899 137 19 the the DT 33899 137 20 most most RBS 33899 137 21 usual usual JJ 33899 137 22 contrivance contrivance NN 33899 137 23 is be VBZ 33899 137 24 somewhat somewhat RB 33899 137 25 as as RB 33899 137 26 illustrated illustrate VBN 33899 137 27 in in IN 33899 137 28 Fig Fig NNP 33899 137 29 . . . 33899 138 1 3 3 LS 33899 138 2 . . . 33899 139 1 In in IN 33899 139 2 this this DT 33899 139 3 apparatus apparatus NN 33899 139 4 the the DT 33899 139 5 spirit spirit NNP 33899 139 6 is be VBZ 33899 139 7 contained contain VBN 33899 139 8 in in IN 33899 139 9 a a DT 33899 139 10 metal metal NN 33899 139 11 reservoir reservoir NN 33899 139 12 at at IN 33899 139 13 the the DT 33899 139 14 rear rear NN 33899 139 15 and and CC 33899 139 16 air air NN 33899 139 17 pressure pressure NN 33899 139 18 is be VBZ 33899 139 19 provided provide VBN 33899 139 20 by by IN 33899 139 21 a a DT 33899 139 22 pair pair NN 33899 139 23 of of IN 33899 139 24 rubber rubber NN 33899 139 25 balls ball NNS 33899 139 26 and and CC 33899 139 27 valves valve NNS 33899 139 28 after after IN 33899 139 29 the the DT 33899 139 30 manner manner NN 33899 139 31 of of IN 33899 139 32 a a DT 33899 139 33 medical medical JJ 33899 139 34 spray spray NN 33899 139 35 . . . 33899 140 1 Sufficient sufficient JJ 33899 140 2 { { -LRB- 33899 140 3 9 9 CD 33899 140 4 } } -RRB- 33899 140 5 pressure pressure NN 33899 140 6 having have VBG 33899 140 7 been be VBN 33899 140 8 obtained obtain VBN 33899 140 9 , , , 33899 140 10 the the DT 33899 140 11 liquid liquid JJ 33899 140 12 spirit spirit NN 33899 140 13 is be VBZ 33899 140 14 forced force VBN 33899 140 15 into into IN 33899 140 16 a a DT 33899 140 17 vaporising vaporise VBG 33899 140 18 chamber chamber NN 33899 140 19 immediately immediately RB 33899 140 20 behind behind IN 33899 140 21 the the DT 33899 140 22 mantle mantle NN 33899 140 23 , , , 33899 140 24 and and CC 33899 140 25 a a DT 33899 140 26 kind kind NN 33899 140 27 of of IN 33899 140 28 miniature miniature JJ 33899 140 29 pitchfork pitchfork NN 33899 140 30 , , , 33899 140 31 with with IN 33899 140 32 its -PRON- PRP$ 33899 140 33 prongs prong NNS 33899 140 34 wrapped wrap VBN 33899 140 35 in in IN 33899 140 36 asbestos asbestos NN 33899 140 37 wool wool NN 33899 140 38 , , , 33899 140 39 is be VBZ 33899 140 40 soaked soak VBN 33899 140 41 in in IN 33899 140 42 spirit spirit NN 33899 140 43 , , , 33899 140 44 and and CC 33899 140 45 pushed push VBD 33899 140 46 over over IN 33899 140 47 the the DT 33899 140 48 brass brass NN 33899 140 49 fitting fitting JJ 33899 140 50 of of IN 33899 140 51 the the DT 33899 140 52 burner burner NN 33899 140 53 in in IN 33899 140 54 such such PDT 33899 140 55 a a DT 33899 140 56 way way NN 33899 140 57 that that WDT 33899 140 58 when when WRB 33899 140 59 lighted light VBD 33899 140 60 the the DT 33899 140 61 flame flame NN 33899 140 62 heats heat VBZ 33899 140 63 the the DT 33899 140 64 chamber chamber NN 33899 140 65 and and CC 33899 140 66 volatilises volatilise VBZ 33899 140 67 the the DT 33899 140 68 spirit spirit NNP 33899 140 69 . . . 33899 141 1 The the DT 33899 141 2 burner burner NN 33899 141 3 can can MD 33899 141 4 now now RB 33899 141 5 be be VB 33899 141 6 lit light VBN 33899 141 7 , , , 33899 141 8 and and CC 33899 141 9 although although IN 33899 141 10 the the DT 33899 141 11 fork fork NN 33899 141 12 burns burn VBZ 33899 141 13 out out RP 33899 141 14 in in IN 33899 141 15 the the DT 33899 141 16 course course NN 33899 141 17 of of IN 33899 141 18 a a DT 33899 141 19 minute minute NN 33899 141 20 or or CC 33899 141 21 so so RB 33899 141 22 , , , 33899 141 23 the the DT 33899 141 24 heat heat NN 33899 141 25 from from IN 33899 141 26 the the DT 33899 141 27 mantle mantle NN 33899 141 28 itself -PRON- PRP 33899 141 29 is be VBZ 33899 141 30 thereafter thereafter RB 33899 141 31 sufficient sufficient JJ 33899 141 32 to to TO 33899 141 33 vaporise vaporise VB 33899 141 34 the the DT 33899 141 35 spirit spirit NN 33899 141 36 as as RB 33899 141 37 rapidly rapidly RB 33899 141 38 as as IN 33899 141 39 required require VBN 33899 141 40 . . . 33899 142 1 This this DT 33899 142 2 lamp lamp NN 33899 142 3 works work VBZ 33899 142 4 exceedingly exceedingly RB 33899 142 5 well well RB 33899 142 6 in in IN 33899 142 7 practice practice NN 33899 142 8 , , , 33899 142 9 but but CC 33899 142 10 has have VBZ 33899 142 11 one one CD 33899 142 12 drawback drawback NN 33899 142 13 , , , 33899 142 14 viz viz NN 33899 142 15 . . . 33899 143 1 that that IN 33899 143 2 it -PRON- PRP 33899 143 3 is be VBZ 33899 143 4 possible possible JJ 33899 143 5 to to TO 33899 143 6 obtain obtain VB 33899 143 7 too too RB 33899 143 8 much much JJ 33899 143 9 pressure pressure NN 33899 143 10 and and CC 33899 143 11 squirt squirt NN 33899 143 12 _ _ NNP 33899 143 13 liquid liquid NN 33899 143 14 _ _ NNP 33899 143 15 spirit spirit NN 33899 143 16 through through IN 33899 143 17 the the DT 33899 143 18 burner burner NN 33899 143 19 , , , 33899 143 20 when when WRB 33899 143 21 it -PRON- PRP 33899 143 22 naturally naturally RB 33899 143 23 catches catch VBZ 33899 143 24 fire fire NN 33899 143 25 and and CC 33899 143 26 may may MD 33899 143 27 even even RB 33899 143 28 run run VB 33899 143 29 on on RP 33899 143 30 to to IN 33899 143 31 the the DT 33899 143 32 floor floor NN 33899 143 33 . . . 33899 144 1 [ [ -LRB- 33899 144 2 Illustration illustration NN 33899 144 3 : : : 33899 144 4 FIG FIG NNP 33899 144 5 . . . 33899 145 1 3.--Methylated 3.--Methylated NNP 33899 145 2 Spirit Spirit NNP 33899 145 3 Burner Burner NNP 33899 145 4 . . . 33899 145 5 ] ] -RRB- 33899 146 1 An an DT 33899 146 2 accident accident NN 33899 146 3 of of IN 33899 146 4 this this DT 33899 146 5 sort sort NN 33899 146 6 is be VBZ 33899 146 7 rare rare JJ 33899 146 8 and and CC 33899 146 9 usually usually RB 33899 146 10 harmless harmless JJ 33899 146 11 even even RB 33899 146 12 if if IN 33899 146 13 it -PRON- PRP 33899 146 14 does do VBZ 33899 146 15 occur occur VB 33899 146 16 , , , 33899 146 17 but but CC 33899 146 18 an an DT 33899 146 19 audience audience NN 33899 146 20 is be VBZ 33899 146 21 easily easily RB 33899 146 22 frightened frightened JJ 33899 146 23 , , , 33899 146 24 and and CC 33899 146 25 hence hence RB 33899 146 26 this this DT 33899 146 27 burner burner NN 33899 146 28 should should MD 33899 146 29 only only RB 33899 146 30 be be VB 33899 146 31 used use VBN 33899 146 32 by by IN 33899 146 33 _ _ NNP 33899 146 34 an an DT 33899 146 35 operator operator NN 33899 146 36 with with IN 33899 146 37 experience experience NN 33899 146 38 _ _ NNP 33899 146 39 . . . 33899 147 1 An an DT 33899 147 2 altogether altogether RB 33899 147 3 better well JJR 33899 147 4 arrangement arrangement NN 33899 147 5 is be VBZ 33899 147 6 that that IN 33899 147 7 made make VBN 33899 147 8 by by IN 33899 147 9 Messrs. Messrs. NNP 33899 147 10 Hughes Hughes NNP 33899 147 11 of of IN 33899 147 12 Kingsland Kingsland NNP 33899 147 13 and and CC 33899 147 14 known know VBN 33899 147 15 as as IN 33899 147 16 the the DT 33899 147 17 ' ' `` 33899 147 18 Luna Luna NNP 33899 147 19 ' ' '' 33899 147 20 Lamp Lamp NNP 33899 147 21 ( ( -LRB- 33899 147 22 Fig fig NN 33899 147 23 . . . 33899 148 1 4 4 LS 33899 148 2 ) ) -RRB- 33899 148 3 . . . 33899 149 1 In in IN 33899 149 2 this this DT 33899 149 3 burner burner NN 33899 149 4 there there EX 33899 149 5 is be VBZ 33899 149 6 no no DT 33899 149 7 pump pump NN 33899 149 8 and and CC 33899 149 9 no no DT 33899 149 10 volatilising volatilise VBG 33899 149 11 chamber chamber NN 33899 149 12 ; ; : 33899 149 13 { { -LRB- 33899 149 14 10 10 CD 33899 149 15 } } -RRB- 33899 149 16 the the DT 33899 149 17 spirit spirit NNP 33899 149 18 is be VBZ 33899 149 19 contained contain VBN 33899 149 20 as as IN 33899 149 21 before before RB 33899 149 22 in in IN 33899 149 23 a a DT 33899 149 24 metal metal NN 33899 149 25 reservoir reservoir NN 33899 149 26 and and CC 33899 149 27 a a DT 33899 149 28 separate separate JJ 33899 149 29 burner burner NN 33899 149 30 underneath underneath RB 33899 149 31 is be VBZ 33899 149 32 used use VBN 33899 149 33 to to TO 33899 149 34 keep keep VB 33899 149 35 this this DT 33899 149 36 sufficiently sufficiently RB 33899 149 37 hot hot JJ 33899 149 38 to to IN 33899 149 39 both both DT 33899 149 40 vaporise vaporise VB 33899 149 41 the the DT 33899 149 42 spirit spirit NN 33899 149 43 and and CC 33899 149 44 provide provide VB 33899 149 45 the the DT 33899 149 46 necessary necessary JJ 33899 149 47 pressure pressure NN 33899 149 48 . . . 33899 150 1 The the DT 33899 150 2 heat heat NN 33899 150 3 can can MD 33899 150 4 be be VB 33899 150 5 regulated regulate VBN 33899 150 6 by by IN 33899 150 7 means mean NNS 33899 150 8 of of IN 33899 150 9 an an DT 33899 150 10 adjustable adjustable JJ 33899 150 11 sheath sheath NN 33899 150 12 to to IN 33899 150 13 the the DT 33899 150 14 burner burner NN 33899 150 15 , , , 33899 150 16 and and CC 33899 150 17 a a DT 33899 150 18 simple simple JJ 33899 150 19 safety safety NN 33899 150 20 valve valve NN 33899 150 21 provides provide VBZ 33899 150 22 against against IN 33899 150 23 an an DT 33899 150 24 excess excess NN 33899 150 25 of of IN 33899 150 26 vapour vapour NN 33899 150 27 . . . 33899 151 1 I -PRON- PRP 33899 151 2 do do VBP 33899 151 3 not not RB 33899 151 4 say say VB 33899 151 5 that that IN 33899 151 6 an an DT 33899 151 7 accident accident NN 33899 151 8 of of IN 33899 151 9 the the DT 33899 151 10 sort sort NN 33899 151 11 previously previously RB 33899 151 12 referred refer VBD 33899 151 13 to to IN 33899 151 14 is be VBZ 33899 151 15 impossible impossible JJ 33899 151 16 even even RB 33899 151 17 with with IN 33899 151 18 this this DT 33899 151 19 burner burner NN 33899 151 20 , , , 33899 151 21 but but CC 33899 151 22 I -PRON- PRP 33899 151 23 have have VBP 33899 151 24 never never RB 33899 151 25 heard hear VBN 33899 151 26 of of IN 33899 151 27 it -PRON- PRP 33899 151 28 happening happen VBG 33899 151 29 , , , 33899 151 30 and and CC 33899 151 31 the the DT 33899 151 32 lamp lamp NN 33899 151 33 is be VBZ 33899 151 34 certainly certainly RB 33899 151 35 the the DT 33899 151 36 best good JJS 33899 151 37 apparatus apparatus NN 33899 151 38 of of IN 33899 151 39 its -PRON- PRP$ 33899 151 40 kind kind NN 33899 151 41 that that WDT 33899 151 42 I -PRON- PRP 33899 151 43 am be VBP 33899 151 44 acquainted acquaint VBN 33899 151 45 with with IN 33899 151 46 . . . 33899 152 1 [ [ -LRB- 33899 152 2 Illustration illustration NN 33899 152 3 : : : 33899 152 4 FIG FIG NNP 33899 152 5 . . . 33899 153 1 4.--Luna 4.--luna CD 33899 153 2 Lamp Lamp NNP 33899 153 3 . . . 33899 153 4 ] ] -RRB- 33899 154 1 INCANDESCENT INCANDESCENT NNP 33899 154 2 ELECTRIC ELECTRIC NNP 33899 154 3 LAMPS.--Incandescent lamps.--incandescent NN 33899 154 4 electric electric JJ 33899 154 5 lamps lamp NNS 33899 154 6 of of IN 33899 154 7 the the DT 33899 154 8 ordinary ordinary JJ 33899 154 9 metal metal NN 33899 154 10 or or CC 33899 154 11 carbon carbon NN 33899 154 12 filament filament NN 33899 154 13 type type NN 33899 154 14 are be VBP 33899 154 15 also also RB 33899 154 16 frequently frequently RB 33899 154 17 used use VBN 33899 154 18 in in IN 33899 154 19 small small JJ 33899 154 20 class class NN 33899 154 21 - - HYPH 33899 154 22 rooms room NNS 33899 154 23 , , , 33899 154 24 and and CC 33899 154 25 should should MD 33899 154 26 be be VB 33899 154 27 mentioned mention VBN 33899 154 28 here here RB 33899 154 29 , , , 33899 154 30 as as IN 33899 154 31 they -PRON- PRP 33899 154 32 provide provide VBP 33899 154 33 approximately approximately RB 33899 154 34 the the DT 33899 154 35 same same JJ 33899 154 36 illumination illumination NN 33899 154 37 as as IN 33899 154 38 a a DT 33899 154 39 gas gas NN 33899 154 40 mantle mantle NN 33899 154 41 , , , 33899 154 42 or or CC 33899 154 43 in in IN 33899 154 44 some some DT 33899 154 45 cases case NNS 33899 154 46 rather rather RB 33899 154 47 better well JJR 33899 154 48 . . . 33899 155 1 It -PRON- PRP 33899 155 2 will will MD 33899 155 3 , , , 33899 155 4 however however RB 33899 155 5 , , , 33899 155 6 be be VB 33899 155 7 more more RBR 33899 155 8 convenient convenient JJ 33899 155 9 to to TO 33899 155 10 deal deal VB 33899 155 11 with with IN 33899 155 12 the the DT 33899 155 13 question question NN 33899 155 14 of of IN 33899 155 15 electric electric JJ 33899 155 16 lighting lighting NN 33899 155 17 as as IN 33899 155 18 a a DT 33899 155 19 whole whole NN 33899 155 20 in in IN 33899 155 21 the the DT 33899 155 22 chapter chapter NN 33899 155 23 devoted devote VBN 33899 155 24 to to IN 33899 155 25 it -PRON- PRP 33899 155 26 . . . 33899 156 1 It -PRON- PRP 33899 156 2 will will MD 33899 156 3 suffice suffice VB 33899 156 4 here here RB 33899 156 5 to to TO 33899 156 6 say say VB 33899 156 7 that that IN 33899 156 8 lamps lamp NNS 33899 156 9 are be VBP 33899 156 10 made make VBN 33899 156 11 for for IN 33899 156 12 the the DT 33899 156 13 purpose purpose NN 33899 156 14 with with IN 33899 156 15 a a DT 33899 156 16 special special JJ 33899 156 17 filament filament NN 33899 156 18 arranged arrange VBD 33899 156 19 to to TO 33899 156 20 provide provide VB 33899 156 21 a a DT 33899 156 22 concentrated concentrated JJ 33899 156 23 light light NN 33899 156 24 , , , 33899 156 25 the the DT 33899 156 26 ordinary ordinary JJ 33899 156 27 type type NN 33899 156 28 being be VBG 33899 156 29 almost almost RB 33899 156 30 useless useless JJ 33899 156 31 in in IN 33899 156 32 this this DT 33899 156 33 respect respect NN 33899 156 34 , , , 33899 156 35 and and CC 33899 156 36 that that DT 33899 156 37 small small JJ 33899 156 38 battery battery NN 33899 156 39 lamps lamp NNS 33899 156 40 , , , 33899 156 41 worked work VBN 33899 156 42 by by IN 33899 156 43 a a DT 33899 156 44 suitable suitable JJ 33899 156 45 accumulator accumulator NN 33899 156 46 , , , 33899 156 47 can can MD 33899 156 48 also also RB 33899 156 49 be be VB 33899 156 50 used use VBN 33899 156 51 , , , 33899 156 52 but but CC 33899 156 53 except except IN 33899 156 54 under under IN 33899 156 55 very very RB 33899 156 56 special special JJ 33899 156 57 circumstances circumstance NNS 33899 156 58 are be VBP 33899 156 59 hardly hardly RB 33899 156 60 worth worth JJ 33899 156 61 the the DT 33899 156 62 trouble trouble NN 33899 156 63 of of IN 33899 156 64 keeping keep VBG 33899 156 65 the the DT 33899 156 66 batteries battery NNS 33899 156 67 charged charge VBN 33899 156 68 . . . 33899 157 1 * * NFP 33899 157 2 * * NFP 33899 157 3 * * NFP 33899 157 4 * * NFP 33899 157 5 * * NFP 33899 157 6 { { -LRB- 33899 157 7 11 11 CD 33899 157 8 } } -RRB- 33899 157 9 CHAPTER chapter NN 33899 157 10 IV IV NNP 33899 157 11 ACETYLENE acetylene RB 33899 157 12 There there EX 33899 157 13 is be VBZ 33899 157 14 no no DT 33899 157 15 doubt doubt NN 33899 157 16 that that IN 33899 157 17 at at IN 33899 157 18 present present JJ 33899 157 19 acetylene acetylene NN 33899 157 20 holds hold VBZ 33899 157 21 second second JJ 33899 157 22 place place NN 33899 157 23 to to TO 33899 157 24 electric electric VB 33899 157 25 light light NN 33899 157 26 in in IN 33899 157 27 popularity popularity NN 33899 157 28 for for IN 33899 157 29 optical optical JJ 33899 157 30 lantern lantern JJ 33899 157 31 work work NN 33899 157 32 . . . 33899 158 1 The the DT 33899 158 2 light light NN 33899 158 3 is be VBZ 33899 158 4 good good JJ 33899 158 5 ; ; : 33899 158 6 not not RB 33899 158 7 , , , 33899 158 8 it -PRON- PRP 33899 158 9 is be VBZ 33899 158 10 true true JJ 33899 158 11 , , , 33899 158 12 _ _ NNP 33899 158 13 so so RB 33899 158 14 _ _ NNP 33899 158 15 good good JJ 33899 158 16 as as IN 33899 158 17 limelight limelight NN 33899 158 18 or or CC 33899 158 19 the the DT 33899 158 20 electric electric JJ 33899 158 21 arc arc NN 33899 158 22 , , , 33899 158 23 but but CC 33899 158 24 still still RB 33899 158 25 sufficient sufficient JJ 33899 158 26 for for IN 33899 158 27 a a DT 33899 158 28 picture picture NN 33899 158 29 up up IN 33899 158 30 to to TO 33899 158 31 12 12 CD 33899 158 32 feet foot NNS 33899 158 33 in in IN 33899 158 34 diameter diameter NN 33899 158 35 at at IN 33899 158 36 a a DT 33899 158 37 working work VBG 33899 158 38 distance distance NN 33899 158 39 from from IN 33899 158 40 the the DT 33899 158 41 screen screen NN 33899 158 42 of of IN 33899 158 43 not not RB 33899 158 44 more more JJR 33899 158 45 than than IN 33899 158 46 30 30 CD 33899 158 47 feet foot NNS 33899 158 48 , , , 33899 158 49 and and CC 33899 158 50 this this DT 33899 158 51 suffices suffice VBZ 33899 158 52 for for IN 33899 158 53 the the DT 33899 158 54 large large JJ 33899 158 55 majority majority NN 33899 158 56 of of IN 33899 158 57 halls hall NNS 33899 158 58 . . . 33899 159 1 It -PRON- PRP 33899 159 2 has have VBZ 33899 159 3 great great JJ 33899 159 4 advantages advantage NNS 33899 159 5 over over IN 33899 159 6 limelight limelight NN 33899 159 7 in in IN 33899 159 8 convenience convenience NN 33899 159 9 and and CC 33899 159 10 cheapness cheapness NN 33899 159 11 , , , 33899 159 12 although although IN 33899 159 13 on on IN 33899 159 14 both both PDT 33899 159 15 these these DT 33899 159 16 points point NNS 33899 159 17 it -PRON- PRP 33899 159 18 must must MD 33899 159 19 yield yield VB 33899 159 20 place place NN 33899 159 21 to to IN 33899 159 22 the the DT 33899 159 23 electric electric JJ 33899 159 24 arc arc NN 33899 159 25 , , , 33899 159 26 always always RB 33899 159 27 providing provide VBG 33899 159 28 that that IN 33899 159 29 current current NN 33899 159 30 is be VBZ 33899 159 31 available available JJ 33899 159 32 , , , 33899 159 33 and and CC 33899 159 34 therefore therefore RB 33899 159 35 it -PRON- PRP 33899 159 36 is be VBZ 33899 159 37 chiefly chiefly RB 33899 159 38 used use VBN 33899 159 39 in in IN 33899 159 40 country country NN 33899 159 41 districts district NNS 33899 159 42 and and CC 33899 159 43 in in IN 33899 159 44 gas gas NN 33899 159 45 - - HYPH 33899 159 46 lit light VBN 33899 159 47 halls hall NNS 33899 159 48 in in IN 33899 159 49 large large JJ 33899 159 50 towns town NNS 33899 159 51 . . . 33899 160 1 Acetylene acetylene NN 33899 160 2 gas gas NN 33899 160 3 is be VBZ 33899 160 4 formed form VBN 33899 160 5 , , , 33899 160 6 as as IN 33899 160 7 is be VBZ 33899 160 8 well well RB 33899 160 9 known know VBN 33899 160 10 , , , 33899 160 11 by by IN 33899 160 12 the the DT 33899 160 13 action action NN 33899 160 14 of of IN 33899 160 15 water water NN 33899 160 16 upon upon IN 33899 160 17 carbide carbide NN 33899 160 18 of of IN 33899 160 19 calcium calcium NN 33899 160 20 , , , 33899 160 21 and and CC 33899 160 22 the the DT 33899 160 23 generators generator NNS 33899 160 24 constructed construct VBN 33899 160 25 for for IN 33899 160 26 lantern lantern JJ 33899 160 27 work work NN 33899 160 28 are be VBP 33899 160 29 essentially essentially RB 33899 160 30 the the DT 33899 160 31 same same JJ 33899 160 32 in in IN 33899 160 33 construction construction NN 33899 160 34 as as IN 33899 160 35 for for IN 33899 160 36 other other JJ 33899 160 37 purposes purpose NNS 33899 160 38 . . . 33899 161 1 The the DT 33899 161 2 alterations alteration NNS 33899 161 3 introduced introduce VBN 33899 161 4 are be VBP 33899 161 5 chiefly chiefly RB 33899 161 6 directed direct VBN 33899 161 7 towards towards IN 33899 161 8 obtaining obtain VBG 33899 161 9 a a DT 33899 161 10 light light NN 33899 161 11 as as IN 33899 161 12 _ _ NNP 33899 161 13 steady steady JJ 33899 161 14 _ _ NNP 33899 161 15 as as IN 33899 161 16 possible possible JJ 33899 161 17 from from IN 33899 161 18 a a DT 33899 161 19 comparatively comparatively RB 33899 161 20 small small JJ 33899 161 21 generator generator NN 33899 161 22 , , , 33899 161 23 and and CC 33899 161 24 , , , 33899 161 25 secondly secondly RB 33899 161 26 , , , 33899 161 27 towards towards IN 33899 161 28 the the DT 33899 161 29 entire entire JJ 33899 161 30 elimination elimination NN 33899 161 31 of of IN 33899 161 32 smell smell NN 33899 161 33 , , , 33899 161 34 which which WDT 33899 161 35 obviously obviously RB 33899 161 36 is be VBZ 33899 161 37 far far RB 33899 161 38 more more RBR 33899 161 39 serious serious JJ 33899 161 40 in in IN 33899 161 41 a a DT 33899 161 42 lecture lecture NN 33899 161 43 hall hall NN 33899 161 44 than than IN 33899 161 45 , , , 33899 161 46 for for IN 33899 161 47 instance instance NN 33899 161 48 , , , 33899 161 49 on on IN 33899 161 50 a a DT 33899 161 51 motor motor NN 33899 161 52 car car NN 33899 161 53 . . . 33899 162 1 The the DT 33899 162 2 generators generator NNS 33899 162 3 in in IN 33899 162 4 most most RBS 33899 162 5 common common JJ 33899 162 6 use use NN 33899 162 7 may may MD 33899 162 8 be be VB 33899 162 9 divided divide VBN 33899 162 10 into into IN 33899 162 11 two two CD 33899 162 12 classes class NNS 33899 162 13 , , , 33899 162 14 i.e. i.e. FW 33899 163 1 those those DT 33899 163 2 on on IN 33899 163 3 the the DT 33899 163 4 gasometer gasometer NN 33899 163 5 principle principle NN 33899 163 6 in in IN 33899 163 7 which which WDT 33899 163 8 the the DT 33899 163 9 carbide carbide NN 33899 163 10 is be VBZ 33899 163 11 gradually gradually RB 33899 163 12 lowered lower VBN 33899 163 13 into into IN 33899 163 14 the the DT 33899 163 15 water water NN 33899 163 16 , , , 33899 163 17 and and CC 33899 163 18 those those DT 33899 163 19 in in IN 33899 163 20 which which WDT 33899 163 21 the the DT 33899 163 22 water water NN 33899 163 23 is be VBZ 33899 163 24 allowed allow VBN 33899 163 25 slowly slowly RB 33899 163 26 to to TO 33899 163 27 gain gain VB 33899 163 28 access access NN 33899 163 29 to to IN 33899 163 30 the the DT 33899 163 31 carbide carbide NN 33899 163 32 . . . 33899 164 1 A a DT 33899 164 2 good good JJ 33899 164 3 example example NN 33899 164 4 of of IN 33899 164 5 the the DT 33899 164 6 former former JJ 33899 164 7 is be VBZ 33899 164 8 perhaps perhaps RB 33899 164 9 that that WDT 33899 164 10 made make VBN 33899 164 11 by by IN 33899 164 12 Messrs. Messrs. NNPS 33899 164 13 Moss Moss NNP 33899 164 14 of of IN 33899 164 15 Birmingham Birmingham NNP 33899 164 16 , , , 33899 164 17 though though IN 33899 164 18 there there EX 33899 164 19 are be VBP 33899 164 20 several several JJ 33899 164 21 others other NNS 33899 164 22 equally equally RB 33899 164 23 good good JJ 33899 164 24 , , , 33899 164 25 and and CC 33899 164 26 clear clear JJ 33899 164 27 and and CC 33899 164 28 explicit explicit JJ 33899 164 29 directions direction NNS 33899 164 30 for for IN 33899 164 31 working work VBG 33899 164 32 should should MD 33899 164 33 be be VB 33899 164 34 supplied supply VBN 33899 164 35 by by IN 33899 164 36 the the DT 33899 164 37 makers maker NNS 33899 164 38 . . . 33899 165 1 The the DT 33899 165 2 Moss Moss NNP 33899 165 3 Generator Generator NNP 33899 165 4 ( ( -LRB- 33899 165 5 Fig fig NN 33899 165 6 . . . 33899 166 1 5 5 LS 33899 166 2 ) ) -RRB- 33899 166 3 consists consist VBZ 33899 166 4 of of IN 33899 166 5 a a DT 33899 166 6 tall tall JJ 33899 166 7 iron iron NN 33899 166 8 vessel vessel NN 33899 166 9 A a DT 33899 166 10 fitted fit VBN 33899 166 11 with with IN 33899 166 12 a a DT 33899 166 13 gas gas NN 33899 166 14 tap tap NN 33899 166 15 at at IN 33899 166 16 bottom bottom NN 33899 166 17 , , , 33899 166 18 this this DT 33899 166 19 communicating communicate VBG 33899 166 20 { { -LRB- 33899 166 21 12 12 CD 33899 166 22 } } -RRB- 33899 166 23 with with IN 33899 166 24 a a DT 33899 166 25 vertical vertical JJ 33899 166 26 iron iron NN 33899 166 27 tube tube NN 33899 166 28 within within IN 33899 166 29 the the DT 33899 166 30 vessel vessel NN 33899 166 31 . . . 33899 167 1 Into into IN 33899 167 2 this this DT 33899 167 3 container container NN 33899 167 4 fits fit VBZ 33899 167 5 the the DT 33899 167 6 inner inner JJ 33899 167 7 bell bell NN 33899 167 8 or or CC 33899 167 9 container container NN 33899 167 10 B B NNP 33899 167 11 , , , 33899 167 12 divided divide VBD 33899 167 13 internally internally RB 33899 167 14 into into IN 33899 167 15 two two CD 33899 167 16 concentric concentric JJ 33899 167 17 portions portion NNS 33899 167 18 entirely entirely RB 33899 167 19 separated separate VBD 33899 167 20 from from IN 33899 167 21 each each DT 33899 167 22 other other JJ 33899 167 23 , , , 33899 167 24 but but CC 33899 167 25 connected connect VBN 33899 167 26 by by IN 33899 167 27 the the DT 33899 167 28 pipe pipe NN 33899 167 29 P P NNP 33899 167 30 P p NN 33899 167 31 and and CC 33899 167 32 the the DT 33899 167 33 tap tap NN 33899 167 34 T. T. NNP 33899 167 35 A a DT 33899 167 36 guide guide NN 33899 167 37 inside inside IN 33899 167 38 the the DT 33899 167 39 bell bell NNP 33899 167 40 encircles encircle VBZ 33899 167 41 the the DT 33899 167 42 iron iron NN 33899 167 43 tube tube NN 33899 167 44 in in IN 33899 167 45 the the DT 33899 167 46 outer outer JJ 33899 167 47 tank tank NN 33899 167 48 and and CC 33899 167 49 prevents prevent VBZ 33899 167 50 rotation rotation NN 33899 167 51 . . . 33899 168 1 Into into IN 33899 168 2 the the DT 33899 168 3 inner inner JJ 33899 168 4 portion portion NN 33899 168 5 fits fit VBZ 33899 168 6 again again RB 33899 168 7 the the DT 33899 168 8 carbide carbide NN 33899 168 9 - - HYPH 33899 168 10 container container NN 33899 168 11 ( ( -LRB- 33899 168 12 shown show VBN 33899 168 13 separately separately RB 33899 168 14 on on IN 33899 168 15 the the DT 33899 168 16 left left NN 33899 168 17 ) ) -RRB- 33899 168 18 , , , 33899 168 19 which which WDT 33899 168 20 is be VBZ 33899 168 21 locked lock VBN 33899 168 22 when when WRB 33899 168 23 in in IN 33899 168 24 place place NN 33899 168 25 by by IN 33899 168 26 giving give VBG 33899 168 27 it -PRON- PRP 33899 168 28 a a DT 33899 168 29 half half JJ 33899 168 30 turn turn NN 33899 168 31 , , , 33899 168 32 when when WRB 33899 168 33 a a DT 33899 168 34 hook hook NN 33899 168 35 inside inside IN 33899 168 36 the the DT 33899 168 37 bell bell NNP 33899 168 38 engages engage VBZ 33899 168 39 with with IN 33899 168 40 the the DT 33899 168 41 lower low JJR 33899 168 42 edge edge NN 33899 168 43 of of IN 33899 168 44 the the DT 33899 168 45 carbide carbide JJ 33899 168 46 container container NN 33899 168 47 and and CC 33899 168 48 prevents prevent VBZ 33899 168 49 it -PRON- PRP 33899 168 50 from from IN 33899 168 51 falling fall VBG 33899 168 52 . . . 33899 169 1 The the DT 33899 169 2 carbide carbide JJ 33899 169 3 container container NN 33899 169 4 is be VBZ 33899 169 5 fitted fit VBN 33899 169 6 with with IN 33899 169 7 a a DT 33899 169 8 series series NN 33899 169 9 of of IN 33899 169 10 shelves shelf NNS 33899 169 11 , , , 33899 169 12 and and CC 33899 169 13 the the DT 33899 169 14 contents content NNS 33899 169 15 of of IN 33899 169 16 a a DT 33899 169 17 2 2 CD 33899 169 18 lb lb XX 33899 169 19 . . . 33899 170 1 tin tin NN 33899 170 2 of of IN 33899 170 3 carbide carbide NN 33899 170 4 should should MD 33899 170 5 be be VB 33899 170 6 roughly roughly RB 33899 170 7 divided divide VBN 33899 170 8 among among IN 33899 170 9 them -PRON- PRP 33899 170 10 ; ; : 33899 170 11 there there EX 33899 170 12 is be VBZ 33899 170 13 no no DT 33899 170 14 need need NN 33899 170 15 to to TO 33899 170 16 make make VB 33899 170 17 any any DT 33899 170 18 accurate accurate JJ 33899 170 19 division division NN 33899 170 20 . . . 33899 171 1 The the DT 33899 171 2 carbide carbide NN 33899 171 3 used use VBN 33899 171 4 should should MD 33899 171 5 be be VB 33899 171 6 that that RB 33899 171 7 known know VBN 33899 171 8 as as IN 33899 171 9 ½ ½ JJ 33899 171 10 inch inch NN 33899 171 11 mesh mesh VBP 33899 171 12 , , , 33899 171 13 and and CC 33899 171 14 should should MD 33899 171 15 be be VB 33899 171 16 _ _ NNP 33899 171 17 pure pure JJ 33899 171 18 _ _ NNP 33899 171 19 . . . 33899 172 1 That that DT 33899 172 2 described describe VBD 33899 172 3 as as IN 33899 172 4 ' ' `` 33899 172 5 chemically chemically RB 33899 172 6 ' ' '' 33899 172 7 treated treat VBN 33899 172 8 is be VBZ 33899 172 9 apt apt JJ 33899 172 10 to to TO 33899 172 11 give give VB 33899 172 12 trouble trouble NN 33899 172 13 by by IN 33899 172 14 over over IN 33899 172 15 - - HYPH 33899 172 16 generation generation NN 33899 172 17 in in IN 33899 172 18 these these DT 33899 172 19 gasometers gasometer NNS 33899 172 20 and and CC 33899 172 21 should should MD 33899 172 22 be be VB 33899 172 23 scrupulously scrupulously RB 33899 172 24 avoided avoid VBN 33899 172 25 . . . 33899 173 1 [ [ -LRB- 33899 173 2 Illustration illustration NN 33899 173 3 : : : 33899 173 4 FIG FIG NNP 33899 173 5 . . . 33899 174 1 5.--The 5.--the DT 33899 174 2 Moss Moss NNP 33899 174 3 Generator Generator NNP 33899 174 4 . . . 33899 174 5 ] ] -RRB- 33899 175 1 The the DT 33899 175 2 carbide carbide NN 33899 175 3 having have VBG 33899 175 4 been be VBN 33899 175 5 placed place VBN 33899 175 6 in in IN 33899 175 7 the the DT 33899 175 8 receptacles receptacle NNS 33899 175 9 , , , 33899 175 10 these these DT 33899 175 11 should should MD 33899 175 12 be be VB 33899 175 13 closed close VBN 33899 175 14 by by IN 33899 175 15 means mean NNS 33899 175 16 of of IN 33899 175 17 the the DT 33899 175 18 loose loose JJ 33899 175 19 flap flap NN 33899 175 20 and and CC 33899 175 21 the the DT 33899 175 22 whole whole JJ 33899 175 23 pushed push VBD 33899 175 24 into into IN 33899 175 25 the the DT 33899 175 26 bell bell NN 33899 175 27 and and CC 33899 175 28 secured secure VBN 33899 175 29 . . . 33899 176 1 Water water NN 33899 176 2 should should MD 33899 176 3 be be VB 33899 176 4 poured pour VBN 33899 176 5 into into IN 33899 176 6 the the DT 33899 176 7 outer outer JJ 33899 176 8 vessel vessel NN 33899 176 9 up up IN 33899 176 10 to to IN 33899 176 11 a a DT 33899 176 12 mark mark NN 33899 176 13 on on IN 33899 176 14 the the DT 33899 176 15 iron iron NN 33899 176 16 tube tube NN 33899 176 17 , , , 33899 176 18 and and CC 33899 176 19 the the DT 33899 176 20 bell bell NN 33899 176 21 placed place VBD 33899 176 22 in in IN 33899 176 23 position position NN 33899 176 24 . . . 33899 177 1 The the DT 33899 177 2 lower low JJR 33899 177 3 tap tap NN 33899 177 4 being be VBG 33899 177 5 then then RB 33899 177 6 turned turn VBN 33899 177 7 on on RP 33899 177 8 and and CC 33899 177 9 the the DT 33899 177 10 upper upper JJ 33899 177 11 one one CD 33899 177 12 closed close VBN 33899 177 13 , , , 33899 177 14 air air NN 33899 177 15 from from IN 33899 177 16 the the DT 33899 177 17 outer outer JJ 33899 177 18 portion portion NN 33899 177 19 of of IN 33899 177 20 the the DT 33899 177 21 bell bell NN 33899 177 22 can can MD 33899 177 23 gradually gradually RB 33899 177 24 escape escape VB 33899 177 25 by by IN 33899 177 26 means mean NNS 33899 177 27 of of IN 33899 177 28 the the DT 33899 177 29 iron iron NN 33899 177 30 tube tube NN 33899 177 31 and and CC 33899 177 32 lower low JJR 33899 177 33 tap tap NN 33899 177 34 , , , 33899 177 35 and and CC 33899 177 36 the the DT 33899 177 37 bell bell NN 33899 177 38 gradually gradually RB 33899 177 39 sinks sink VBZ 33899 177 40 by by IN 33899 177 41 its -PRON- PRP$ 33899 177 42 own own JJ 33899 177 43 weight weight NN 33899 177 44 until until IN 33899 177 45 it -PRON- PRP 33899 177 46 is be VBZ 33899 177 47 on on IN 33899 177 48 the the DT 33899 177 49 bottom bottom NN 33899 177 50 , , , 33899 177 51 but but CC 33899 177 52 still still RB 33899 177 53 { { -LRB- 33899 177 54 13 13 CD 33899 177 55 } } -RRB- 33899 177 56 no no DT 33899 177 57 water water NN 33899 177 58 can can MD 33899 177 59 reach reach VB 33899 177 60 the the DT 33899 177 61 carbide carbide NN 33899 177 62 , , , 33899 177 63 the the DT 33899 177 64 air air NN 33899 177 65 imprisoned imprison VBN 33899 177 66 in in IN 33899 177 67 the the DT 33899 177 68 inner inner JJ 33899 177 69 portion portion NN 33899 177 70 of of IN 33899 177 71 the the DT 33899 177 72 bell bell NN 33899 177 73 effectually effectually RB 33899 177 74 excluding exclude VBG 33899 177 75 it -PRON- PRP 33899 177 76 . . . 33899 178 1 The the DT 33899 178 2 lower low JJR 33899 178 3 tap tap NN 33899 178 4 should should MD 33899 178 5 now now RB 33899 178 6 be be VB 33899 178 7 connected connect VBN 33899 178 8 by by IN 33899 178 9 means mean NNS 33899 178 10 of of IN 33899 178 11 india india NNP 33899 178 12 - - HYPH 33899 178 13 rubber rubber NNP 33899 178 14 or or CC 33899 178 15 flexible flexible JJ 33899 178 16 metallic metallic JJ 33899 178 17 tubing tubing NN 33899 178 18 to to IN 33899 178 19 the the DT 33899 178 20 burner burner NN 33899 178 21 in in IN 33899 178 22 the the DT 33899 178 23 lantern lantern NN 33899 178 24 ( ( -LRB- 33899 178 25 of of IN 33899 178 26 which which WDT 33899 178 27 more more RBR 33899 178 28 anon anon NNP 33899 178 29 ) ) -RRB- 33899 178 30 , , , 33899 178 31 and and CC 33899 178 32 the the DT 33899 178 33 upper upper JJ 33899 178 34 tap tap NN 33899 178 35 on on IN 33899 178 36 the the DT 33899 178 37 generator generator NN 33899 178 38 turned turn VBD 33899 178 39 on on RP 33899 178 40 , , , 33899 178 41 the the DT 33899 178 42 tap tap NN 33899 178 43 or or CC 33899 178 44 taps tap NNS 33899 178 45 on on IN 33899 178 46 the the DT 33899 178 47 burner burner NN 33899 178 48 being be VBG 33899 178 49 likewise likewise RB 33899 178 50 opened open VBN 33899 178 51 . . . 33899 179 1 The the DT 33899 179 2 air air NN 33899 179 3 from from IN 33899 179 4 the the DT 33899 179 5 inner inner JJ 33899 179 6 portion portion NN 33899 179 7 of of IN 33899 179 8 the the DT 33899 179 9 bell bell NN 33899 179 10 can can MD 33899 179 11 now now RB 33899 179 12 escape escape VB 33899 179 13 by by IN 33899 179 14 the the DT 33899 179 15 pipe pipe NN 33899 179 16 P p NN 33899 179 17 P p NN 33899 179 18 into into IN 33899 179 19 the the DT 33899 179 20 outer outer JJ 33899 179 21 part part NN 33899 179 22 , , , 33899 179 23 and and CC 33899 179 24 thence thence NN 33899 179 25 through through IN 33899 179 26 the the DT 33899 179 27 iron iron NN 33899 179 28 tube tube NN 33899 179 29 , , , 33899 179 30 and and CC 33899 179 31 out out RB 33899 179 32 through through IN 33899 179 33 tubing tubing NN 33899 179 34 and and CC 33899 179 35 jet jet NN 33899 179 36 , , , 33899 179 37 and and CC 33899 179 38 as as IN 33899 179 39 it -PRON- PRP 33899 179 40 does do VBZ 33899 179 41 so so RB 33899 179 42 water water NN 33899 179 43 will will MD 33899 179 44 rise rise VB 33899 179 45 in in IN 33899 179 46 the the DT 33899 179 47 interior interior NN 33899 179 48 and and CC 33899 179 49 attack attack VB 33899 179 50 the the DT 33899 179 51 carbide carbide NN 33899 179 52 . . . 33899 180 1 In in IN 33899 180 2 a a DT 33899 180 3 few few JJ 33899 180 4 moments moment NNS 33899 180 5 the the DT 33899 180 6 burner burner NN 33899 180 7 can can MD 33899 180 8 be be VB 33899 180 9 lit light VBN 33899 180 10 ; ; : 33899 180 11 but but CC 33899 180 12 the the DT 33899 180 13 gas gas NN 33899 180 14 , , , 33899 180 15 being be VBG 33899 180 16 generated generate VBN 33899 180 17 far far RB 33899 180 18 in in IN 33899 180 19 excess excess NN 33899 180 20 of of IN 33899 180 21 requirements requirement NNS 33899 180 22 , , , 33899 180 23 and and CC 33899 180 24 filling fill VBG 33899 180 25 both both CC 33899 180 26 the the DT 33899 180 27 inner inner JJ 33899 180 28 and and CC 33899 180 29 outer outer JJ 33899 180 30 portions portion NNS 33899 180 31 of of IN 33899 180 32 the the DT 33899 180 33 bell bell NN 33899 180 34 faster fast RBR 33899 180 35 than than IN 33899 180 36 it -PRON- PRP 33899 180 37 can can MD 33899 180 38 escape escape VB 33899 180 39 , , , 33899 180 40 lifts lift VBZ 33899 180 41 the the DT 33899 180 42 latter latter NN 33899 180 43 until until IN 33899 180 44 the the DT 33899 180 45 carbide carbide NN 33899 180 46 is be VBZ 33899 180 47 entirely entirely RB 33899 180 48 out out IN 33899 180 49 of of IN 33899 180 50 the the DT 33899 180 51 water water NN 33899 180 52 , , , 33899 180 53 when when WRB 33899 180 54 in in IN 33899 180 55 a a DT 33899 180 56 few few JJ 33899 180 57 minutes minute NNS 33899 180 58 generation generation NN 33899 180 59 ceases cease NNS 33899 180 60 . . . 33899 181 1 If if IN 33899 181 2 the the DT 33899 181 3 jet jet NN 33899 181 4 is be VBZ 33899 181 5 left leave VBN 33899 181 6 burning burn VBG 33899 181 7 the the DT 33899 181 8 bell bell NN 33899 181 9 will will MD 33899 181 10 gradually gradually RB 33899 181 11 sink sink VB 33899 181 12 again again RB 33899 181 13 as as IN 33899 181 14 the the DT 33899 181 15 gas gas NN 33899 181 16 is be VBZ 33899 181 17 used use VBN 33899 181 18 up up RP 33899 181 19 , , , 33899 181 20 and and CC 33899 181 21 should should MD 33899 181 22 thereafter thereafter RB 33899 181 23 maintain maintain VB 33899 181 24 an an DT 33899 181 25 automatic automatic JJ 33899 181 26 balance balance NN 33899 181 27 without without IN 33899 181 28 attention attention NN 33899 181 29 . . . 33899 182 1 It -PRON- PRP 33899 182 2 can can MD 33899 182 3 be be VB 33899 182 4 turned turn VBN 33899 182 5 off off RP 33899 182 6 at at IN 33899 182 7 any any DT 33899 182 8 moment moment NN 33899 182 9 by by IN 33899 182 10 simply simply RB 33899 182 11 closing close VBG 33899 182 12 the the DT 33899 182 13 taps tap NNS 33899 182 14 at at IN 33899 182 15 the the DT 33899 182 16 jet jet NN 33899 182 17 or or CC 33899 182 18 , , , 33899 182 19 better well JJR 33899 182 20 , , , 33899 182 21 the the DT 33899 182 22 lower low JJR 33899 182 23 tap tap NN 33899 182 24 at at IN 33899 182 25 the the DT 33899 182 26 generator generator NN 33899 182 27 , , , 33899 182 28 when when WRB 33899 182 29 the the DT 33899 182 30 bell bell NN 33899 182 31 rises rise VBZ 33899 182 32 sufficiently sufficiently RB 33899 182 33 to to TO 33899 182 34 take take VB 33899 182 35 the the DT 33899 182 36 carbide carbide NN 33899 182 37 out out IN 33899 182 38 of of IN 33899 182 39 the the DT 33899 182 40 water water NN 33899 182 41 ; ; : 33899 182 42 but but CC 33899 182 43 if if IN 33899 182 44 it -PRON- PRP 33899 182 45 is be VBZ 33899 182 46 required require VBN 33899 182 47 to to TO 33899 182 48 leave leave VB 33899 182 49 the the DT 33899 182 50 generator generator NN 33899 182 51 unlit unlit VBN 33899 182 52 for for IN 33899 182 53 a a DT 33899 182 54 considerable considerable JJ 33899 182 55 time time NN 33899 182 56 , , , 33899 182 57 it -PRON- PRP 33899 182 58 is be VBZ 33899 182 59 better well JJR 33899 182 60 to to TO 33899 182 61 turn turn VB 33899 182 62 off off RP 33899 182 63 the the DT 33899 182 64 tap tap NN 33899 182 65 on on IN 33899 182 66 the the DT 33899 182 67 top top NN 33899 182 68 first first RB 33899 182 69 . . . 33899 183 1 This this DT 33899 183 2 causes cause VBZ 33899 183 3 the the DT 33899 183 4 inner inner JJ 33899 183 5 portion portion NN 33899 183 6 of of IN 33899 183 7 the the DT 33899 183 8 bell bell NN 33899 183 9 to to TO 33899 183 10 fill fill VB 33899 183 11 with with IN 33899 183 12 gas gas NN 33899 183 13 which which WDT 33899 183 14 can can MD 33899 183 15 not not RB 33899 183 16 escape escape VB 33899 183 17 , , , 33899 183 18 and and CC 33899 183 19 as as IN 33899 183 20 that that DT 33899 183 21 in in IN 33899 183 22 the the DT 33899 183 23 outer outer JJ 33899 183 24 part part NN 33899 183 25 burns burn VBZ 33899 183 26 out out RP 33899 183 27 , , , 33899 183 28 the the DT 33899 183 29 bell bell NNP 33899 183 30 sinks sink VBZ 33899 183 31 to to IN 33899 183 32 the the DT 33899 183 33 bottom bottom NN 33899 183 34 and and CC 33899 183 35 remains remain VBZ 33899 183 36 there there RB 33899 183 37 , , , 33899 183 38 the the DT 33899 183 39 gas gas NN 33899 183 40 itself -PRON- PRP 33899 183 41 imprisoned imprison VBD 33899 183 42 in in IN 33899 183 43 the the DT 33899 183 44 inner inner JJ 33899 183 45 chamber chamber NN 33899 183 46 excluding exclude VBG 33899 183 47 the the DT 33899 183 48 water water NN 33899 183 49 from from IN 33899 183 50 the the DT 33899 183 51 carbide carbide NN 33899 183 52 . . . 33899 184 1 The the DT 33899 184 2 exact exact JJ 33899 184 3 arrangement arrangement NN 33899 184 4 varies vary VBZ 33899 184 5 in in IN 33899 184 6 different different JJ 33899 184 7 patterns pattern NNS 33899 184 8 of of IN 33899 184 9 generator generator NN 33899 184 10 , , , 33899 184 11 but but CC 33899 184 12 the the DT 33899 184 13 above above JJ 33899 184 14 may may MD 33899 184 15 be be VB 33899 184 16 taken take VBN 33899 184 17 as as RB 33899 184 18 roughly roughly RB 33899 184 19 indicating indicate VBG 33899 184 20 the the DT 33899 184 21 action action NN 33899 184 22 , , , 33899 184 23 and and CC 33899 184 24 further further JJ 33899 184 25 information information NN 33899 184 26 may may MD 33899 184 27 always always RB 33899 184 28 be be VB 33899 184 29 obtained obtain VBN 33899 184 30 from from IN 33899 184 31 the the DT 33899 184 32 maker maker NN 33899 184 33 or or CC 33899 184 34 dealer dealer NN 33899 184 35 . . . 33899 185 1 _ _ NNP 33899 185 2 Emptying Emptying NNP 33899 185 3 _ _ NNP 33899 185 4 should should MD 33899 185 5 always always RB 33899 185 6 be be VB 33899 185 7 done do VBN 33899 185 8 out out IN 33899 185 9 of of IN 33899 185 10 doors door NNS 33899 185 11 , , , 33899 185 12 as as IN 33899 185 13 the the DT 33899 185 14 odour odour NN 33899 185 15 of of IN 33899 185 16 acetylene acetylene NN 33899 185 17 gas gas NN 33899 185 18 is be VBZ 33899 185 19 most most RBS 33899 185 20 objectionable objectionable JJ 33899 185 21 , , , 33899 185 22 and and CC 33899 185 23 for for IN 33899 185 24 the the DT 33899 185 25 same same JJ 33899 185 26 reason reason NN 33899 185 27 rubber rubber NN 33899 185 28 tubes tube NNS 33899 185 29 , , , 33899 185 30 & & CC 33899 185 31 c. c. NNP 33899 185 32 , , , 33899 185 33 should should MD 33899 185 34 be be VB 33899 185 35 securely securely RB 33899 185 36 tied tie VBN 33899 185 37 on on RP 33899 185 38 , , , 33899 185 39 so so IN 33899 185 40 that that IN 33899 185 41 the the DT 33899 185 42 slightest slight JJS 33899 185 43 escape escape NN 33899 185 44 may may MD 33899 185 45 be be VB 33899 185 46 avoided avoid VBN 33899 185 47 . . . 33899 186 1 { { -LRB- 33899 186 2 14 14 CD 33899 186 3 } } -RRB- 33899 186 4 If if IN 33899 186 5 the the DT 33899 186 6 exhibition exhibition NN 33899 186 7 has have VBZ 33899 186 8 been be VBN 33899 186 9 a a DT 33899 186 10 short short JJ 33899 186 11 one one NN 33899 186 12 it -PRON- PRP 33899 186 13 will will MD 33899 186 14 often often RB 33899 186 15 be be VB 33899 186 16 found find VBN 33899 186 17 that that IN 33899 186 18 the the DT 33899 186 19 upper upper JJ 33899 186 20 cells cell NNS 33899 186 21 have have VBP 33899 186 22 not not RB 33899 186 23 been be VBN 33899 186 24 affected affect VBN 33899 186 25 by by IN 33899 186 26 the the DT 33899 186 27 water water NN 33899 186 28 , , , 33899 186 29 in in IN 33899 186 30 which which WDT 33899 186 31 case case NN 33899 186 32 they -PRON- PRP 33899 186 33 may may MD 33899 186 34 be be VB 33899 186 35 put put VBN 33899 186 36 back back RB 33899 186 37 in in IN 33899 186 38 the the DT 33899 186 39 tin tin NN 33899 186 40 and and CC 33899 186 41 used use VBD 33899 186 42 again again RB 33899 186 43 , , , 33899 186 44 but but CC 33899 186 45 it -PRON- PRP 33899 186 46 is be VBZ 33899 186 47 not not RB 33899 186 48 generally generally RB 33899 186 49 advisable advisable JJ 33899 186 50 to to TO 33899 186 51 put put VB 33899 186 52 in in RP 33899 186 53 less less JJR 33899 186 54 than than IN 33899 186 55 the the DT 33899 186 56 full full JJ 33899 186 57 charge charge NN 33899 186 58 to to TO 33899 186 59 begin begin VB 33899 186 60 with with IN 33899 186 61 as as IN 33899 186 62 the the DT 33899 186 63 weight weight NN 33899 186 64 of of IN 33899 186 65 the the DT 33899 186 66 carbide carbide NN 33899 186 67 plays play VBZ 33899 186 68 a a DT 33899 186 69 definite definite JJ 33899 186 70 part part NN 33899 186 71 in in IN 33899 186 72 securing secure VBG 33899 186 73 the the DT 33899 186 74 smooth smooth JJ 33899 186 75 action action NN 33899 186 76 of of IN 33899 186 77 the the DT 33899 186 78 apparatus apparatus NN 33899 186 79 . . . 33899 187 1 The the DT 33899 187 2 sludge sludge NN 33899 187 3 should should MD 33899 187 4 be be VB 33899 187 5 thrown throw VBN 33899 187 6 away away RP 33899 187 7 ( ( -LRB- 33899 187 8 it -PRON- PRP 33899 187 9 forms form VBZ 33899 187 10 a a DT 33899 187 11 good good JJ 33899 187 12 manure manure NN 33899 187 13 for for IN 33899 187 14 the the DT 33899 187 15 garden garden NN 33899 187 16 ) ) -RRB- 33899 187 17 and and CC 33899 187 18 the the DT 33899 187 19 entire entire JJ 33899 187 20 generator generator NN 33899 187 21 thoroughly thoroughly RB 33899 187 22 dried dry VBN 33899 187 23 , , , 33899 187 24 otherwise otherwise RB 33899 187 25 rust rust NN 33899 187 26 will will MD 33899 187 27 quickly quickly RB 33899 187 28 appear appear VB 33899 187 29 . . . 33899 188 1 [ [ -LRB- 33899 188 2 Illustration illustration NN 33899 188 3 : : : 33899 188 4 FIG FIG NNP 33899 188 5 . . . 33899 189 1 6.--The 6.--The NNP 33899 189 2 A.L. A.L. NNP 33899 190 1 or or CC 33899 190 2 ' ' `` 33899 190 3 Popular Popular NNP 33899 190 4 ' ' '' 33899 190 5 Model Model NNP 33899 190 6 . . . 33899 190 7 ] ] -RRB- 33899 191 1 Theoretically theoretically RB 33899 191 2 one one CD 33899 191 3 of of IN 33899 191 4 these these DT 33899 191 5 generators generator NNS 33899 191 6 may may MD 33899 191 7 be be VB 33899 191 8 filled fill VBN 33899 191 9 and and CC 33899 191 10 left leave VBN 33899 191 11 standing stand VBG 33899 191 12 indefinitely indefinitely RB 33899 191 13 , , , 33899 191 14 but but CC 33899 191 15 in in IN 33899 191 16 practice practice NN 33899 191 17 it -PRON- PRP 33899 191 18 is be VBZ 33899 191 19 not not RB 33899 191 20 advisable advisable JJ 33899 191 21 , , , 33899 191 22 as as IN 33899 191 23 the the DT 33899 191 24 damp damp NN 33899 191 25 in in IN 33899 191 26 the the DT 33899 191 27 atmosphere atmosphere NN 33899 191 28 is be VBZ 33899 191 29 apt apt JJ 33899 191 30 to to TO 33899 191 31 produce produce VB 33899 191 32 a a DT 33899 191 33 very very RB 33899 191 34 slow slow JJ 33899 191 35 generation generation NN 33899 191 36 of of IN 33899 191 37 gas gas NN 33899 191 38 , , , 33899 191 39 sufficient sufficient JJ 33899 191 40 often often RB 33899 191 41 to to TO 33899 191 42 cause cause VB 33899 191 43 a a DT 33899 191 44 decided decided JJ 33899 191 45 smell smell NN 33899 191 46 . . . 33899 192 1 Of of IN 33899 192 2 generators generator NNS 33899 192 3 which which WDT 33899 192 4 act act VBP 33899 192 5 by by IN 33899 192 6 admitting admit VBG 33899 192 7 water water NN 33899 192 8 to to IN 33899 192 9 the the DT 33899 192 10 carbide carbide NN 33899 192 11 perhaps perhaps RB 33899 192 12 the the DT 33899 192 13 best well RBS 33899 192 14 known know VBN 33899 192 15 is be VBZ 33899 192 16 the the DT 33899 192 17 A.L. A.L. NNP 33899 193 1 or or CC 33899 193 2 ' ' `` 33899 193 3 Popular Popular NNP 33899 193 4 ' ' '' 33899 193 5 Model model NN 33899 193 6 ( ( -LRB- 33899 193 7 Fig fig NN 33899 193 8 . . . 33899 194 1 6 6 LS 33899 194 2 ) ) -RRB- 33899 194 3 , , , 33899 194 4 this this DT 33899 194 5 being being NN 33899 194 6 , , , 33899 194 7 in in IN 33899 194 8 fact fact NN 33899 194 9 , , , 33899 194 10 a a DT 33899 194 11 pattern pattern NN 33899 194 12 designed design VBN 33899 194 13 for for IN 33899 194 14 motor motor NN 33899 194 15 - - HYPH 33899 194 16 car car NN 33899 194 17 head head NN 33899 194 18 - - HYPH 33899 194 19 lights light NNS 33899 194 20 , , , 33899 194 21 but but CC 33899 194 22 which which WDT 33899 194 23 answers answer VBZ 33899 194 24 well well RB 33899 194 25 for for IN 33899 194 26 lantern lantern JJ 33899 194 27 work work NN 33899 194 28 . . . 33899 195 1 Its -PRON- PRP$ 33899 195 2 exact exact JJ 33899 195 3 operation operation NN 33899 195 4 need nee MD 33899 195 5 hardly hardly RB 33899 195 6 be be VB 33899 195 7 described describe VBN 33899 195 8 here here RB 33899 195 9 in in IN 33899 195 10 full full JJ 33899 195 11 detail detail NN 33899 195 12 . . . 33899 196 1 It -PRON- PRP 33899 196 2 will will MD 33899 196 3 suffice suffice VB 33899 196 4 to to TO 33899 196 5 say say VB 33899 196 6 that that IN 33899 196 7 the the DT 33899 196 8 water water NN 33899 196 9 gains gain VBZ 33899 196 10 access access NN 33899 196 11 to to IN 33899 196 12 the the DT 33899 196 13 carbide carbide NN 33899 196 14 by by IN 33899 196 15 ' ' `` 33899 196 16 creeping creep VBG 33899 196 17 ' ' '' 33899 196 18 up up RB 33899 196 19 between between IN 33899 196 20 two two CD 33899 196 21 concentric concentric JJ 33899 196 22 copper copper NN 33899 196 23 cones cone NNS 33899 196 24 , , , 33899 196 25 and and CC 33899 196 26 in in IN 33899 196 27 the the DT 33899 196 28 event event NN 33899 196 29 of of IN 33899 196 30 over over IN 33899 196 31 - - HYPH 33899 196 32 generation generation NN 33899 196 33 the the DT 33899 196 34 pressure pressure NN 33899 196 35 of of IN 33899 196 36 the the DT 33899 196 37 gas gas NN 33899 196 38 automatically automatically RB 33899 196 39 checks check VBZ 33899 196 40 the the DT 33899 196 41 flow flow NN 33899 196 42 . . . 33899 197 1 This this DT 33899 197 2 generator generator NN 33899 197 3 is be VBZ 33899 197 4 smaller small JJR 33899 197 5 than than IN 33899 197 6 the the DT 33899 197 7 gasometer gasometer NN 33899 197 8 pattern pattern NN 33899 197 9 , , , 33899 197 10 and and CC 33899 197 11 hence hence RB 33899 197 12 can can MD 33899 197 13 be be VB 33899 197 14 recommended recommend VBN 33899 197 15 for for IN 33899 197 16 portability portability NN 33899 197 17 ; ; : 33899 197 18 but but CC 33899 197 19 in in IN 33899 197 20 my -PRON- PRP$ 33899 197 21 experience experience NN 33899 197 22 the the DT 33899 197 23 light light NN 33899 197 24 is be VBZ 33899 197 25 not not RB 33899 197 26 quite quite RB 33899 197 27 so so RB 33899 197 28 steady steady JJ 33899 197 29 , , , 33899 197 30 and and CC 33899 197 31 the the DT 33899 197 32 control control NN 33899 197 33 rather rather RB 33899 197 34 less less RBR 33899 197 35 delicate delicate JJ 33899 197 36 , , , 33899 197 37 thereby thereby RB 33899 197 38 causing cause VBG 33899 197 39 on on IN 33899 197 40 occasions occasion NNS 33899 197 41 a a DT 33899 197 42 perceptible perceptible JJ 33899 197 43 smell smell NN 33899 197 44 , , , 33899 197 45 especially especially RB 33899 197 46 if if IN 33899 197 47 left left JJ 33899 197 48 standing stand VBG 33899 197 49 for for IN 33899 197 50 a a DT 33899 197 51 considerable considerable JJ 33899 197 52 time time NN 33899 197 53 . . . 33899 198 1 There there EX 33899 198 2 are be VBP 33899 198 3 other other JJ 33899 198 4 types type NNS 33899 198 5 of of IN 33899 198 6 generators generator NNS 33899 198 7 , , , 33899 198 8 such such JJ 33899 198 9 as as IN 33899 198 10 the the DT 33899 198 11 ' ' `` 33899 198 12 Water Water NNP 33899 198 13 { { -LRB- 33899 198 14 15 15 CD 33899 198 15 } } -RRB- 33899 198 16 dropping drop VBG 33899 198 17 ' ' '' 33899 198 18 variety variety NN 33899 198 19 , , , 33899 198 20 in in IN 33899 198 21 which which WDT 33899 198 22 the the DT 33899 198 23 water water NN 33899 198 24 drips drip VBZ 33899 198 25 on on RP 33899 198 26 to to IN 33899 198 27 the the DT 33899 198 28 carbide carbide NN 33899 198 29 , , , 33899 198 30 and and CC 33899 198 31 the the DT 33899 198 32 reverse reverse NN 33899 198 33 , , , 33899 198 34 in in IN 33899 198 35 which which WDT 33899 198 36 fine fine NN 33899 198 37 granulated granulate VBD 33899 198 38 carbide carbide NNP 33899 198 39 drops drop VBZ 33899 198 40 a a DT 33899 198 41 little little JJ 33899 198 42 at at IN 33899 198 43 a a DT 33899 198 44 time time NN 33899 198 45 into into IN 33899 198 46 water water NN 33899 198 47 ; ; : 33899 198 48 but but CC 33899 198 49 these these DT 33899 198 50 types type NNS 33899 198 51 are be VBP 33899 198 52 not not RB 33899 198 53 very very RB 33899 198 54 frequently frequently RB 33899 198 55 met meet VBN 33899 198 56 with with IN 33899 198 57 and and CC 33899 198 58 need nee MD 33899 198 59 hardly hardly RB 33899 198 60 be be VB 33899 198 61 described describe VBN 33899 198 62 . . . 33899 199 1 It -PRON- PRP 33899 199 2 should should MD 33899 199 3 never never RB 33899 199 4 be be VB 33899 199 5 forgotten forget VBN 33899 199 6 that that IN 33899 199 7 acetylene acetylene NN 33899 199 8 is be VBZ 33899 199 9 an an DT 33899 199 10 explosive explosive JJ 33899 199 11 gas gas NN 33899 199 12 and and CC 33899 199 13 should should MD 33899 199 14 be be VB 33899 199 15 treated treat VBN 33899 199 16 as as IN 33899 199 17 such such JJ 33899 199 18 . . . 33899 200 1 Searching search VBG 33899 200 2 for for IN 33899 200 3 a a DT 33899 200 4 leak leak NN 33899 200 5 with with IN 33899 200 6 a a DT 33899 200 7 lighted light VBN 33899 200 8 match match NN 33899 200 9 , , , 33899 200 10 though though IN 33899 200 11 perhaps perhaps RB 33899 200 12 permissible permissible JJ 33899 200 13 when when WRB 33899 200 14 the the DT 33899 200 15 operator operator NN 33899 200 16 knows know VBZ 33899 200 17 his -PRON- PRP$ 33899 200 18 business business NN 33899 200 19 , , , 33899 200 20 may may MD 33899 200 21 be be VB 33899 200 22 a a DT 33899 200 23 dangerous dangerous JJ 33899 200 24 proceeding proceeding NN 33899 200 25 when when WRB 33899 200 26 the the DT 33899 200 27 contrary contrary NN 33899 200 28 is be VBZ 33899 200 29 the the DT 33899 200 30 case case NN 33899 200 31 . . . 33899 201 1 [ [ -LRB- 33899 201 2 Illustration illustration NN 33899 201 3 : : : 33899 201 4 FIG FIG NNP 33899 201 5 . . . 33899 202 1 7.--Acetylene 7.--Acetylene NNP 33899 202 2 Jet Jet NNP 33899 202 3 . . . 33899 202 4 ] ] -RRB- 33899 203 1 Acetylene acetylene NN 33899 203 2 burners burner NNS 33899 203 3 are be VBP 33899 203 4 generally generally RB 33899 203 5 of of IN 33899 203 6 the the DT 33899 203 7 ' ' `` 33899 203 8 Batswing batswe VBG 33899 203 9 ' ' '' 33899 203 10 type type NN 33899 203 11 , , , 33899 203 12 and and CC 33899 203 13 are be VBP 33899 203 14 as as IN 33899 203 15 a a DT 33899 203 16 rule rule NN 33899 203 17 four four CD 33899 203 18 in in IN 33899 203 19 number number NN 33899 203 20 , , , 33899 203 21 mounted mount VBN 33899 203 22 in in IN 33899 203 23 a a DT 33899 203 24 row row NN 33899 203 25 with with IN 33899 203 26 a a DT 33899 203 27 reflector reflector NN 33899 203 28 behind behind RB 33899 203 29 , , , 33899 203 30 each each DT 33899 203 31 burner burner NN 33899 203 32 being be VBG 33899 203 33 separately separately RB 33899 203 34 controlled control VBN 33899 203 35 by by IN 33899 203 36 its -PRON- PRP$ 33899 203 37 own own JJ 33899 203 38 tap tap NN 33899 203 39 ( ( -LRB- 33899 203 40 Fig fig NN 33899 203 41 . . . 33899 204 1 7 7 LS 33899 204 2 ) ) -RRB- 33899 204 3 . . . 33899 205 1 An an DT 33899 205 2 acetylene acetylene NN 33899 205 3 flame flame NN 33899 205 4 is be VBZ 33899 205 5 very very RB 33899 205 6 smoky smoky JJ 33899 205 7 , , , 33899 205 8 and and CC 33899 205 9 care care NN 33899 205 10 must must MD 33899 205 11 be be VB 33899 205 12 taken take VBN 33899 205 13 that that IN 33899 205 14 the the DT 33899 205 15 burners burner NNS 33899 205 16 are be VBP 33899 205 17 not not RB 33899 205 18 turned turn VBN 33899 205 19 too too RB 33899 205 20 high high JJ 33899 205 21 . . . 33899 206 1 A a DT 33899 206 2 nipple nipple JJ 33899 206 3 cleaner cleaner NN 33899 206 4 , , , 33899 206 5 consisting consist VBG 33899 206 6 of of IN 33899 206 7 a a DT 33899 206 8 fine fine JJ 33899 206 9 wire wire NN 33899 206 10 in in IN 33899 206 11 a a DT 33899 206 12 short short JJ 33899 206 13 handle handle NN 33899 206 14 , , , 33899 206 15 can can MD 33899 206 16 usually usually RB 33899 206 17 be be VB 33899 206 18 obtained obtain VBN 33899 206 19 from from IN 33899 206 20 any any DT 33899 206 21 dealer dealer NN 33899 206 22 , , , 33899 206 23 and and CC 33899 206 24 is be VBZ 33899 206 25 very very RB 33899 206 26 handy handy JJ 33899 206 27 . . . 33899 207 1 Acetylene acetylene NN 33899 207 2 gas gas NN 33899 207 3 can can MD 33899 207 4 also also RB 33899 207 5 be be VB 33899 207 6 used use VBN 33899 207 7 for for IN 33899 207 8 lantern lantern JJ 33899 207 9 illumination illumination NN 33899 207 10 in in IN 33899 207 11 quite quite PDT 33899 207 12 another another DT 33899 207 13 way way NN 33899 207 14 , , , 33899 207 15 viz viz NN 33899 207 16 . . . 33899 208 1 by by IN 33899 208 2 a a DT 33899 208 3 blast blast NN 33899 208 4 from from IN 33899 208 5 a a DT 33899 208 6 blowpipe blowpipe NN 33899 208 7 , , , 33899 208 8 in in IN 33899 208 9 combination combination NN 33899 208 10 with with IN 33899 208 11 either either DT 33899 208 12 air air NN 33899 208 13 or or CC 33899 208 14 oxygen oxygen NN 33899 208 15 , , , 33899 208 16 on on IN 33899 208 17 to to IN 33899 208 18 a a DT 33899 208 19 special special JJ 33899 208 20 ' ' `` 33899 208 21 Pastille Pastille NNP 33899 208 22 ' ' '' 33899 208 23 provided provide VBN 33899 208 24 for for IN 33899 208 25 the the DT 33899 208 26 purpose purpose NN 33899 208 27 , , , 33899 208 28 or or CC 33899 208 29 an an DT 33899 208 30 ordinary ordinary JJ 33899 208 31 limelight limelight NN 33899 208 32 jet jet NN 33899 208 33 can can MD 33899 208 34 be be VB 33899 208 35 used use VBN 33899 208 36 . . . 33899 209 1 These these DT 33899 209 2 methods method NNS 33899 209 3 entail entail VBP 33899 209 4 the the DT 33899 209 5 use use NN 33899 209 6 of of IN 33899 209 7 acetylene acetylene NN 33899 209 8 _ _ NNP 33899 209 9 under under IN 33899 209 10 pressure pressure NN 33899 209 11 _ _ NNP 33899 209 12 , , , 33899 209 13 and and CC 33899 209 14 are be VBP 33899 209 15 so so RB 33899 209 16 analogous analogous JJ 33899 209 17 to to TO 33899 209 18 limelight limelight VB 33899 209 19 that that DT 33899 209 20 I -PRON- PRP 33899 209 21 shall shall MD 33899 209 22 for for IN 33899 209 23 convenience convenience NN 33899 209 24 deal deal NN 33899 209 25 with with IN 33899 209 26 them -PRON- PRP 33899 209 27 in in IN 33899 209 28 the the DT 33899 209 29 chapter chapter NN 33899 209 30 devoted devote VBN 33899 209 31 to to IN 33899 209 32 that that DT 33899 209 33 illuminant illuminant NN 33899 209 34 . . . 33899 210 1 * * NFP 33899 210 2 * * NFP 33899 210 3 * * NFP 33899 210 4 * * NFP 33899 210 5 * * NFP 33899 210 6 { { -LRB- 33899 210 7 16 16 CD 33899 210 8 } } -RRB- 33899 210 9 CHAPTER chapter NN 33899 210 10 V v NN 33899 210 11 LIMELIGHT LIMELIGHT NNP 33899 210 12 AND and CC 33899 210 13 THE the DT 33899 210 14 ACETYLENE acetylene RB 33899 210 15 BLAST blast NN 33899 210 16 The the DT 33899 210 17 illumination illumination NN 33899 210 18 possible possible JJ 33899 210 19 with with IN 33899 210 20 this this DT 33899 210 21 light light NN 33899 210 22 is be VBZ 33899 210 23 almost almost RB 33899 210 24 unlimited unlimited JJ 33899 210 25 , , , 33899 210 26 and and CC 33899 210 27 for for IN 33899 210 28 really really RB 33899 210 29 large large JJ 33899 210 30 halls hall NNS 33899 210 31 it -PRON- PRP 33899 210 32 is be VBZ 33899 210 33 , , , 33899 210 34 as as IN 33899 210 35 remarked remark VBN 33899 210 36 before before RB 33899 210 37 , , , 33899 210 38 the the DT 33899 210 39 _ _ NNP 33899 210 40 only only RB 33899 210 41 _ _ NNP 33899 210 42 substitute substitute NN 33899 210 43 for for IN 33899 210 44 the the DT 33899 210 45 electric electric JJ 33899 210 46 arc arc NN 33899 210 47 . . . 33899 211 1 It -PRON- PRP 33899 211 2 consists consist VBZ 33899 211 3 essentially essentially RB 33899 211 4 of of IN 33899 211 5 a a DT 33899 211 6 blowpipe blowpipe NN 33899 211 7 flame flame NN 33899 211 8 , , , 33899 211 9 composed compose VBN 33899 211 10 of of IN 33899 211 11 oxyhydrogen oxyhydrogen NNP 33899 211 12 , , , 33899 211 13 oxyether oxyether UH 33899 211 14 , , , 33899 211 15 oxyspirit oxyspirit NNP 33899 211 16 , , , 33899 211 17 oxy oxy NN 33899 211 18 - - HYPH 33899 211 19 acetylene acetylene NN 33899 211 20 , , , 33899 211 21 & & CC 33899 211 22 c. c. NNP 33899 211 23 , , , 33899 211 24 or or CC 33899 211 25 acetylene acetylene NN 33899 211 26 air air NN 33899 211 27 blast blast NN 33899 211 28 , , , 33899 211 29 heating heat VBG 33899 211 30 to to TO 33899 211 31 incandescence incandescence VB 33899 211 32 a a DT 33899 211 33 block block NN 33899 211 34 of of IN 33899 211 35 lime lime NN 33899 211 36 , , , 33899 211 37 or or CC 33899 211 38 other other JJ 33899 211 39 refractory refractory JJ 33899 211 40 material material NN 33899 211 41 , , , 33899 211 42 and and CC 33899 211 43 the the DT 33899 211 44 essential essential JJ 33899 211 45 feature feature NN 33899 211 46 is be VBZ 33899 211 47 that that IN 33899 211 48 one one CD 33899 211 49 at at IN 33899 211 50 least least JJS 33899 211 51 of of IN 33899 211 52 these these DT 33899 211 53 gases gas NNS 33899 211 54 must must MD 33899 211 55 be be VB 33899 211 56 under under IN 33899 211 57 _ _ NNP 33899 211 58 pressure pressure NN 33899 211 59 _ _ NNP 33899 211 60 . . . 33899 212 1 Thirty thirty CD 33899 212 2 years year NNS 33899 212 3 ago ago RB 33899 212 4 this this DT 33899 212 5 was be VBD 33899 212 6 usually usually RB 33899 212 7 achieved achieve VBN 33899 212 8 by by IN 33899 212 9 storing store VBG 33899 212 10 the the DT 33899 212 11 gas gas NN 33899 212 12 in in IN 33899 212 13 rubber rubber NN 33899 212 14 bags bag NNS 33899 212 15 , , , 33899 212 16 and and CC 33899 212 17 obtaining obtain VBG 33899 212 18 the the DT 33899 212 19 requisite requisite JJ 33899 212 20 pressure pressure NN 33899 212 21 by by IN 33899 212 22 means mean NNS 33899 212 23 of of IN 33899 212 24 heavy heavy JJ 33899 212 25 weights weight NNS 33899 212 26 ; ; : 33899 212 27 but but CC 33899 212 28 except except IN 33899 212 29 in in IN 33899 212 30 a a DT 33899 212 31 very very RB 33899 212 32 few few JJ 33899 212 33 outlying outlying JJ 33899 212 34 districts district NNS 33899 212 35 this this DT 33899 212 36 method method NN 33899 212 37 has have VBZ 33899 212 38 now now RB 33899 212 39 been be VBN 33899 212 40 completely completely RB 33899 212 41 superseded superseded JJ 33899 212 42 by by IN 33899 212 43 the the DT 33899 212 44 use use NN 33899 212 45 of of IN 33899 212 46 compressed compress VBN 33899 212 47 gas gas NN 33899 212 48 cylinders cylinder NNS 33899 212 49 . . . 33899 213 1 The the DT 33899 213 2 earlier early JJR 33899 213 3 editions edition NNS 33899 213 4 of of IN 33899 213 5 this this DT 33899 213 6 work work NN 33899 213 7 contained contain VBD 33899 213 8 very very RB 33899 213 9 full full JJ 33899 213 10 directions direction NNS 33899 213 11 for for IN 33899 213 12 manufacturing manufacture VBG 33899 213 13 gas gas NN 33899 213 14 for for IN 33899 213 15 storage storage NN 33899 213 16 in in IN 33899 213 17 bags bag NNS 33899 213 18 , , , 33899 213 19 but but CC 33899 213 20 it -PRON- PRP 33899 213 21 is be VBZ 33899 213 22 so so RB 33899 213 23 exceptional exceptional JJ 33899 213 24 now now RB 33899 213 25 to to TO 33899 213 26 find find VB 33899 213 27 an an DT 33899 213 28 operator operator NN 33899 213 29 who who WP 33899 213 30 uses use VBZ 33899 213 31 this this DT 33899 213 32 method method NN 33899 213 33 that that IN 33899 213 34 it -PRON- PRP 33899 213 35 seems seem VBZ 33899 213 36 hardly hardly RB 33899 213 37 necessary necessary JJ 33899 213 38 to to TO 33899 213 39 devote devote VB 33899 213 40 much much JJ 33899 213 41 space space NN 33899 213 42 to to IN 33899 213 43 it -PRON- PRP 33899 213 44 , , , 33899 213 45 and and CC 33899 213 46 the the DT 33899 213 47 same same JJ 33899 213 48 may may MD 33899 213 49 be be VB 33899 213 50 said say VBN 33899 213 51 of of IN 33899 213 52 automatic automatic JJ 33899 213 53 oxygen oxygen NN 33899 213 54 ' ' POS 33899 213 55 generators generator NNS 33899 213 56 . . . 33899 213 57 ' ' '' 33899 214 1 The the DT 33899 214 2 present present JJ 33899 214 3 work work NN 33899 214 4 will will MD 33899 214 5 therefore therefore RB 33899 214 6 deal deal VB 33899 214 7 chiefly chiefly RB 33899 214 8 with with IN 33899 214 9 compressed compress VBN 33899 214 10 gas gas NN 33899 214 11 cylinders cylinder NNS 33899 214 12 . . . 33899 215 1 Most Most JJS 33899 215 2 elaborate elaborate JJ 33899 215 3 precautions precaution NNS 33899 215 4 are be VBP 33899 215 5 now now RB 33899 215 6 enforced enforce VBN 33899 215 7 by by IN 33899 215 8 the the DT 33899 215 9 Board Board NNP 33899 215 10 of of IN 33899 215 11 Trade Trade NNP 33899 215 12 to to TO 33899 215 13 ensure ensure VB 33899 215 14 the the DT 33899 215 15 absolute absolute JJ 33899 215 16 safety safety NN 33899 215 17 of of IN 33899 215 18 these these DT 33899 215 19 , , , 33899 215 20 and and CC 33899 215 21 any any DT 33899 215 22 doubt doubt RB 33899 215 23 existing exist VBG 33899 215 24 from from IN 33899 215 25 occasional occasional JJ 33899 215 26 accidents accident NNS 33899 215 27 of of IN 33899 215 28 years year NNS 33899 215 29 ago ago RB 33899 215 30 may may MD 33899 215 31 be be VB 33899 215 32 promptly promptly RB 33899 215 33 dismissed dismiss VBN 33899 215 34 . . . 33899 216 1 Humanly humanly RB 33899 216 2 speaking speak VBG 33899 216 3 , , , 33899 216 4 an an DT 33899 216 5 accident accident NN 33899 216 6 nowadays nowadays RB 33899 216 7 _ _ NNP 33899 216 8 can can MD 33899 216 9 not not RB 33899 216 10 _ _ NNP 33899 216 11 happen happen VB 33899 216 12 , , , 33899 216 13 except except IN 33899 216 14 by by IN 33899 216 15 such such JJ 33899 216 16 wilful wilful JJ 33899 216 17 negligence negligence NN 33899 216 18 on on IN 33899 216 19 the the DT 33899 216 20 part part NN 33899 216 21 of of IN 33899 216 22 the the DT 33899 216 23 maker maker NN 33899 216 24 or or CC 33899 216 25 filler filler NN 33899 216 26 as as IN 33899 216 27 would would MD 33899 216 28 almost almost RB 33899 216 29 render render VB 33899 216 30 the the DT 33899 216 31 culprit culprit NN 33899 216 32 subject subject JJ 33899 216 33 to to IN 33899 216 34 criminal criminal JJ 33899 216 35 proceedings proceeding NNS 33899 216 36 . . . 33899 217 1 Compressed compress VBN 33899 217 2 gas gas NN 33899 217 3 cylinders cylinder NNS 33899 217 4 are be VBP 33899 217 5 painted paint VBN 33899 217 6 a a DT 33899 217 7 distinctive distinctive JJ 33899 217 8 colour colour NN 33899 217 9 , , , 33899 217 10 oxygen oxygen NN 33899 217 11 for for IN 33899 217 12 example example NN 33899 217 13 being be VBG 33899 217 14 black black JJ 33899 217 15 and and CC 33899 217 16 coal coal NN 33899 217 17 gas gas NN 33899 217 18 or or CC 33899 217 19 hydrogen hydrogen NN 33899 217 20 red red NNP 33899 217 21 ; ; : 33899 217 22 the the DT 33899 217 23 screw screw NN 33899 217 24 connections connection NNS 33899 217 25 to to IN 33899 217 26 the the DT 33899 217 27 pumps pump NNS 33899 217 28 , , , 33899 217 29 and and CC 33899 217 30 all all DT 33899 217 31 nozzle nozzle VB 33899 217 32 { { -LRB- 33899 217 33 17 17 CD 33899 217 34 } } -RRB- 33899 217 35 and and CC 33899 217 36 regulator regulator NN 33899 217 37 fittings fitting NNS 33899 217 38 , , , 33899 217 39 are be VBP 33899 217 40 made make VBN 33899 217 41 with with IN 33899 217 42 a a DT 33899 217 43 totally totally RB 33899 217 44 different different JJ 33899 217 45 screw screw NN 33899 217 46 and and CC 33899 217 47 therefore therefore RB 33899 217 48 can can MD 33899 217 49 not not RB 33899 217 50 be be VB 33899 217 51 interchanged interchange VBN 33899 217 52 ; ; : 33899 217 53 the the DT 33899 217 54 cylinders cylinder NNS 33899 217 55 themselves -PRON- PRP 33899 217 56 are be VBP 33899 217 57 bound bind VBN 33899 217 58 by by IN 33899 217 59 law law NN 33899 217 60 to to TO 33899 217 61 be be VB 33899 217 62 reannealed reanneale VBN 33899 217 63 and and CC 33899 217 64 retested reteste VBN 33899 217 65 under under IN 33899 217 66 hydraulic hydraulic JJ 33899 217 67 pressure pressure NN 33899 217 68 at at IN 33899 217 69 regular regular JJ 33899 217 70 intervals interval NNS 33899 217 71 ; ; : 33899 217 72 the the DT 33899 217 73 steel steel NN 33899 217 74 itself -PRON- PRP 33899 217 75 has have VBZ 33899 217 76 to to TO 33899 217 77 be be VB 33899 217 78 of of IN 33899 217 79 a a DT 33899 217 80 guaranteed guarantee VBN 33899 217 81 quality quality NN 33899 217 82 ; ; : 33899 217 83 and and CC 33899 217 84 , , , 33899 217 85 in in IN 33899 217 86 fact fact NN 33899 217 87 , , , 33899 217 88 every every DT 33899 217 89 possible possible JJ 33899 217 90 risk risk NN 33899 217 91 is be VBZ 33899 217 92 guarded guard VBN 33899 217 93 against against IN 33899 217 94 . . . 33899 218 1 The the DT 33899 218 2 most most RBS 33899 218 3 usual usual JJ 33899 218 4 sizes size NNS 33899 218 5 of of IN 33899 218 6 cylinders cylinder NNS 33899 218 7 supplied supply VBN 33899 218 8 for for IN 33899 218 9 lantern lantern JJ 33899 218 10 exhibitions exhibition NNS 33899 218 11 are be VBP 33899 218 12 those those DT 33899 218 13 containing contain VBG 33899 218 14 6 6 CD 33899 218 15 , , , 33899 218 16 12 12 CD 33899 218 17 , , , 33899 218 18 20 20 CD 33899 218 19 , , , 33899 218 20 or or CC 33899 218 21 40 40 CD 33899 218 22 cubic cubic JJ 33899 218 23 feet foot NNS 33899 218 24 , , , 33899 218 25 and and CC 33899 218 26 are be VBP 33899 218 27 usually usually RB 33899 218 28 sent send VBN 33899 218 29 out out RP 33899 218 30 in in IN 33899 218 31 wooden wooden JJ 33899 218 32 or or CC 33899 218 33 hemp hemp NN 33899 218 34 cases case NNS 33899 218 35 . . . 33899 219 1 [ [ -LRB- 33899 219 2 Illustration illustration NN 33899 219 3 : : : 33899 219 4 FIG FIG NNP 33899 219 5 . . . 33899 220 1 8.--Oxygen 8.--Oxygen NNP 33899 220 2 Cylinder Cylinder NNP 33899 220 3 in in IN 33899 220 4 hemp hemp NN 33899 220 5 cover cover NN 33899 220 6 . . . 33899 220 7 ] ] -RRB- 33899 221 1 Fig fig NN 33899 221 2 . . . 33899 222 1 8 8 CD 33899 222 2 shows show VBZ 33899 222 3 a a DT 33899 222 4 12-foot 12-foot CD 33899 222 5 cylinder cylinder NN 33899 222 6 in in IN 33899 222 7 its -PRON- PRP$ 33899 222 8 hemp hemp NN 33899 222 9 case case NN 33899 222 10 , , , 33899 222 11 the the DT 33899 222 12 approximate approximate JJ 33899 222 13 size size NN 33899 222 14 without without IN 33899 222 15 case case NN 33899 222 16 being be VBG 33899 222 17 22 22 CD 33899 222 18 in in IN 33899 222 19 . . . 33899 223 1 by by IN 33899 223 2 4 4 CD 33899 223 3 in in IN 33899 223 4 . . . 33899 224 1 This this DT 33899 224 2 size size NN 33899 224 3 cylinder cylinder NN 33899 224 4 will will MD 33899 224 5 supply supply VB 33899 224 6 an an DT 33899 224 7 average average JJ 33899 224 8 limelight limelight NN 33899 224 9 jet jet NN 33899 224 10 for for IN 33899 224 11 just just RB 33899 224 12 over over IN 33899 224 13 two two CD 33899 224 14 hours hour NNS 33899 224 15 . . . 33899 225 1 The the DT 33899 225 2 extra extra JJ 33899 225 3 powerful powerful JJ 33899 225 4 jets jet NNS 33899 225 5 as as IN 33899 225 6 used use VBN 33899 225 7 for for IN 33899 225 8 cinematograph cinematograph NN 33899 225 9 work work NN 33899 225 10 or or CC 33899 225 11 for for IN 33899 225 12 illuminating illuminate VBG 33899 225 13 a a DT 33899 225 14 very very RB 33899 225 15 large large JJ 33899 225 16 screen screen NN 33899 225 17 take take VBP 33899 225 18 a a DT 33899 225 19 good good JJ 33899 225 20 deal deal NN 33899 225 21 more more RBR 33899 225 22 , , , 33899 225 23 but but CC 33899 225 24 for for IN 33899 225 25 the the DT 33899 225 26 usual usual JJ 33899 225 27 apparatus apparatus NN 33899 225 28 as as IN 33899 225 29 supplied supply VBN 33899 225 30 for for IN 33899 225 31 ordinary ordinary JJ 33899 225 32 lantern lantern JJ 33899 225 33 purposes purpose NNS 33899 225 34 this this DT 33899 225 35 is be VBZ 33899 225 36 a a DT 33899 225 37 pretty pretty RB 33899 225 38 safe safe JJ 33899 225 39 figure figure NN 33899 225 40 . . . 33899 226 1 A a DT 33899 226 2 12-foot 12-foot CD 33899 226 3 cylinder cylinder NN 33899 226 4 is be VBZ 33899 226 5 therefore therefore RB 33899 226 6 the the DT 33899 226 7 favourite favourite JJ 33899 226 8 size size NN 33899 226 9 for for IN 33899 226 10 a a DT 33899 226 11 lantern lantern JJ 33899 226 12 exhibition exhibition NN 33899 226 13 lasting last VBG 33899 226 14 from from IN 33899 226 15 an an DT 33899 226 16 hour hour NN 33899 226 17 to to IN 33899 226 18 one one CD 33899 226 19 and and CC 33899 226 20 a a DT 33899 226 21 half half NN 33899 226 22 hours hour NNS 33899 226 23 , , , 33899 226 24 as as IN 33899 226 25 it -PRON- PRP 33899 226 26 leaves leave VBZ 33899 226 27 a a DT 33899 226 28 fair fair JJ 33899 226 29 margin margin NN 33899 226 30 for for IN 33899 226 31 gas gas NN 33899 226 32 used use VBN 33899 226 33 in in IN 33899 226 34 adjusting adjust VBG 33899 226 35 the the DT 33899 226 36 instrument instrument NN 33899 226 37 , , , 33899 226 38 & & CC 33899 226 39 c. c. NNP 33899 226 40 , , , 33899 226 41 and and CC 33899 226 42 a a DT 33899 226 43 20-foot 20-foot CD 33899 226 44 cylinder cylinder NN 33899 226 45 will will MD 33899 226 46 usually usually RB 33899 226 47 suffice suffice VB 33899 226 48 for for IN 33899 226 49 _ _ NNP 33899 226 50 two two CD 33899 226 51 _ _ NNP 33899 226 52 such such JJ 33899 226 53 exhibitions exhibition NNS 33899 226 54 . . . 33899 227 1 The the DT 33899 227 2 price price NN 33899 227 3 of of IN 33899 227 4 gas gas NN 33899 227 5 per per IN 33899 227 6 cubic cubic JJ 33899 227 7 foot foot NN 33899 227 8 varies varie NNS 33899 227 9 with with IN 33899 227 10 the the DT 33899 227 11 size size NN 33899 227 12 of of IN 33899 227 13 the the DT 33899 227 14 cylinder cylinder NN 33899 227 15 , , , 33899 227 16 being be VBG 33899 227 17 less less JJR 33899 227 18 for for IN 33899 227 19 large large JJ 33899 227 20 cylinders cylinder NNS 33899 227 21 than than IN 33899 227 22 for for IN 33899 227 23 small small JJ 33899 227 24 ones one NNS 33899 227 25 , , , 33899 227 26 and and CC 33899 227 27 the the DT 33899 227 28 cost cost NN 33899 227 29 of of IN 33899 227 30 transit transit NN 33899 227 31 is be VBZ 33899 227 32 also also RB 33899 227 33 less less JJR 33899 227 34 in in IN 33899 227 35 proportion proportion NN 33899 227 36 -- -- : 33899 227 37 hence hence RB 33899 227 38 it -PRON- PRP 33899 227 39 is be VBZ 33899 227 40 frequently frequently RB 33899 227 41 an an DT 33899 227 42 economy economy NN 33899 227 43 to to TO 33899 227 44 hire hire VB 33899 227 45 a a DT 33899 227 46 large large JJ 33899 227 47 cylinder cylinder NN 33899 227 48 and and CC 33899 227 49 retain retain VB 33899 227 50 it -PRON- PRP 33899 227 51 for for IN 33899 227 52 several several JJ 33899 227 53 exhibitions exhibition NNS 33899 227 54 . . . 33899 228 1 On on IN 33899 228 2 the the DT 33899 228 3 other other JJ 33899 228 4 hand hand NN 33899 228 5 most most JJS 33899 228 6 suppliers supplier NNS 33899 228 7 charge charge VBP 33899 228 8 a a DT 33899 228 9 small small JJ 33899 228 10 rent rent NN 33899 228 11 if if IN 33899 228 12 a a DT 33899 228 13 cylinder cylinder NN 33899 228 14 is be VBZ 33899 228 15 retained retain VBN 33899 228 16 beyond beyond IN 33899 228 17 a a DT 33899 228 18 definite definite JJ 33899 228 19 { { -LRB- 33899 228 20 18 18 CD 33899 228 21 } } -RRB- 33899 228 22 time time NN 33899 228 23 , , , 33899 228 24 so so CC 33899 228 25 this this DT 33899 228 26 is be VBZ 33899 228 27 a a DT 33899 228 28 question question NN 33899 228 29 to to TO 33899 228 30 be be VB 33899 228 31 decided decide VBN 33899 228 32 by by IN 33899 228 33 each each DT 33899 228 34 user user NN 33899 228 35 on on IN 33899 228 36 its -PRON- PRP$ 33899 228 37 own own JJ 33899 228 38 merits merit NNS 33899 228 39 . . . 33899 229 1 Alternatively alternatively RB 33899 229 2 , , , 33899 229 3 of of IN 33899 229 4 course course NN 33899 229 5 , , , 33899 229 6 cylinders cylinder NNS 33899 229 7 can can MD 33899 229 8 be be VB 33899 229 9 _ _ NNP 33899 229 10 purchased purchase VBN 33899 229 11 _ _ NNP 33899 229 12 , , , 33899 229 13 and and CC 33899 229 14 the the DT 33899 229 15 question question NN 33899 229 16 of of IN 33899 229 17 rent rent NN 33899 229 18 does do VBZ 33899 229 19 not not RB 33899 229 20 then then RB 33899 229 21 come come VB 33899 229 22 in in RP 33899 229 23 ; ; : 33899 229 24 also also RB 33899 229 25 gas gas NN 33899 229 26 is be VBZ 33899 229 27 supplied supply VBN 33899 229 28 a a DT 33899 229 29 little little RB 33899 229 30 cheaper cheap JJR 33899 229 31 in in IN 33899 229 32 a a DT 33899 229 33 customer customer NN 33899 229 34 's 's POS 33899 229 35 own own JJ 33899 229 36 cylinder cylinder NN 33899 229 37 than than IN 33899 229 38 if if IN 33899 229 39 sent send VBN 33899 229 40 on on IN 33899 229 41 hire hire NN 33899 229 42 . . . 33899 230 1 If if IN 33899 230 2 purchase purchase NN 33899 230 3 is be VBZ 33899 230 4 decided decide VBN 33899 230 5 on on IN 33899 230 6 it -PRON- PRP 33899 230 7 is be VBZ 33899 230 8 frequently frequently RB 33899 230 9 an an DT 33899 230 10 economy economy NN 33899 230 11 to to TO 33899 230 12 buy buy VB 33899 230 13 _ _ NNP 33899 230 14 two two CD 33899 230 15 _ _ NNP 33899 230 16 , , , 33899 230 17 or or CC 33899 230 18 two two CD 33899 230 19 of of IN 33899 230 20 each each DT 33899 230 21 gas gas NN 33899 230 22 , , , 33899 230 23 if if IN 33899 230 24 coal coal NN 33899 230 25 gas gas NN 33899 230 26 cylinders cylinder NNS 33899 230 27 are be VBP 33899 230 28 required require VBN 33899 230 29 as as RB 33899 230 30 well well RB 33899 230 31 . . . 33899 231 1 [ [ -LRB- 33899 231 2 Illustration illustration NN 33899 231 3 : : : 33899 231 4 FIG FIG NNP 33899 231 5 . . . 33899 232 1 9.--Double 9.--double CD 33899 232 2 Lever Lever NNP 33899 232 3 Key Key NNP 33899 232 4 . . . 33899 232 5 ] ] -RRB- 33899 233 1 The the DT 33899 233 2 whole whole JJ 33899 233 3 contents content NNS 33899 233 4 of of IN 33899 233 5 the the DT 33899 233 6 cylinders cylinder NNS 33899 233 7 can can MD 33899 233 8 then then RB 33899 233 9 be be VB 33899 233 10 used use VBN 33899 233 11 up up RP 33899 233 12 without without IN 33899 233 13 waste waste NN 33899 233 14 , , , 33899 233 15 as as IN 33899 233 16 if if IN 33899 233 17 a a DT 33899 233 18 cylinder cylinder NN 33899 233 19 should should MD 33899 233 20 become become VB 33899 233 21 exhausted exhausted JJ 33899 233 22 during during IN 33899 233 23 the the DT 33899 233 24 course course NN 33899 233 25 of of IN 33899 233 26 a a DT 33899 233 27 lecture lecture NN 33899 233 28 , , , 33899 233 29 it -PRON- PRP 33899 233 30 is be VBZ 33899 233 31 only only RB 33899 233 32 a a DT 33899 233 33 matter matter NN 33899 233 34 of of IN 33899 233 35 a a DT 33899 233 36 minute minute NN 33899 233 37 or or CC 33899 233 38 two two CD 33899 233 39 to to TO 33899 233 40 change change VB 33899 233 41 over over RP 33899 233 42 to to IN 33899 233 43 the the DT 33899 233 44 spare spare JJ 33899 233 45 one one NN 33899 233 46 , , , 33899 233 47 whereas whereas IN 33899 233 48 the the DT 33899 233 49 compressors compressor NNS 33899 233 50 are be VBP 33899 233 51 required require VBN 33899 233 52 by by IN 33899 233 53 law law NN 33899 233 54 to to TO 33899 233 55 empty empty VB 33899 233 56 out out RP 33899 233 57 every every DT 33899 233 58 cylinder cylinder NN 33899 233 59 returned return VBD 33899 233 60 to to IN 33899 233 61 them -PRON- PRP 33899 233 62 for for IN 33899 233 63 refilling refill VBG 33899 233 64 , , , 33899 233 65 and and CC 33899 233 66 any any DT 33899 233 67 remaining remain VBG 33899 233 68 gas gas NN 33899 233 69 is be VBZ 33899 233 70 thereby thereby RB 33899 233 71 wasted waste VBN 33899 233 72 . . . 33899 234 1 It -PRON- PRP 33899 234 2 is be VBZ 33899 234 3 extremely extremely RB 33899 234 4 tantalising tantalising NN 33899 234 5 , , , 33899 234 6 to to TO 33899 234 7 say say VB 33899 234 8 the the DT 33899 234 9 least least JJS 33899 234 10 of of IN 33899 234 11 it -PRON- PRP 33899 234 12 , , , 33899 234 13 to to TO 33899 234 14 find find VB 33899 234 15 the the DT 33899 234 16 pressure pressure NN 33899 234 17 gauge gauge NN 33899 234 18 indicating indicate VBG 33899 234 19 that that IN 33899 234 20 there there EX 33899 234 21 is be VBZ 33899 234 22 , , , 33899 234 23 say say UH 33899 234 24 , , , 33899 234 25 8 8 CD 33899 234 26 feet foot NNS 33899 234 27 of of IN 33899 234 28 gas gas NN 33899 234 29 remaining remain VBG 33899 234 30 in in IN 33899 234 31 a a DT 33899 234 32 cylinder cylinder NN 33899 234 33 , , , 33899 234 34 and and CC 33899 234 35 to to TO 33899 234 36 be be VB 33899 234 37 compelled compel VBN 33899 234 38 to to TO 33899 234 39 waste waste VB 33899 234 40 this this DT 33899 234 41 or or CC 33899 234 42 else else RB 33899 234 43 risk risk NN 33899 234 44 running run VBG 33899 234 45 short short JJ 33899 234 46 for for IN 33899 234 47 the the DT 33899 234 48 next next JJ 33899 234 49 exhibition exhibition NN 33899 234 50 , , , 33899 234 51 and and CC 33899 234 52 duplicate duplicate VBP 33899 234 53 cylinders cylinder NNS 33899 234 54 are be VBP 33899 234 55 the the DT 33899 234 56 only only JJ 33899 234 57 way way NN 33899 234 58 of of IN 33899 234 59 avoiding avoid VBG 33899 234 60 the the DT 33899 234 61 loss loss NN 33899 234 62 . . . 33899 235 1 The the DT 33899 235 2 cylinders cylinder NNS 33899 235 3 are be VBP 33899 235 4 filled fill VBN 33899 235 5 to to IN 33899 235 6 a a DT 33899 235 7 pressure pressure NN 33899 235 8 of of IN 33899 235 9 120 120 CD 33899 235 10 atmospheres atmosphere NNS 33899 235 11 , , , 33899 235 12 or or CC 33899 235 13 1800 1800 CD 33899 235 14 lb lb IN 33899 235 15 . . . 33899 236 1 per per IN 33899 236 2 square square JJ 33899 236 3 inch inch NN 33899 236 4 , , , 33899 236 5 and and CC 33899 236 6 are be VBP 33899 236 7 closed close VBN 33899 236 8 by by IN 33899 236 9 strong strong JJ 33899 236 10 screw screw NNP 33899 236 11 nozzles nozzle NNS 33899 236 12 . . . 33899 237 1 The the DT 33899 237 2 keys key NNS 33899 237 3 for for IN 33899 237 4 opening opening NN 33899 237 5 or or CC 33899 237 6 closing close VBG 33899 237 7 these these DT 33899 237 8 are be VBP 33899 237 9 of of IN 33899 237 10 three three CD 33899 237 11 types type NNS 33899 237 12 , , , 33899 237 13 viz viz NN 33899 237 14 . . . 33899 238 1 the the DT 33899 238 2 ' ' `` 33899 238 3 T T NNP 33899 238 4 ' ' '' 33899 238 5 pattern pattern NN 33899 238 6 , , , 33899 238 7 ' ' '' 33899 238 8 Spanner Spanner NNP 33899 238 9 ' ' POS 33899 238 10 pattern pattern NN 33899 238 11 , , , 33899 238 12 and and CC 33899 238 13 that that DT 33899 238 14 known know VBN 33899 238 15 as as IN 33899 238 16 the the DT 33899 238 17 ' ' `` 33899 238 18 Double Double NNP 33899 238 19 Lever Lever NNP 33899 238 20 ' ' '' 33899 238 21 type type NN 33899 238 22 . . . 33899 239 1 This this DT 33899 239 2 latter latter NN 33899 239 3 is be VBZ 33899 239 4 so so RB 33899 239 5 made make VBN 33899 239 6 that that IN 33899 239 7 in in IN 33899 239 8 closing close VBG 33899 239 9 the the DT 33899 239 10 valve valve NN 33899 239 11 it -PRON- PRP 33899 239 12 shuts shut VBZ 33899 239 13 up up RP 33899 239 14 to to IN 33899 239 15 half half PDT 33899 239 16 its -PRON- PRP$ 33899 239 17 length length NN 33899 239 18 and and CC 33899 239 19 { { -LRB- 33899 239 20 19 19 CD 33899 239 21 } } -RRB- 33899 239 22 opens open VBZ 33899 239 23 out out RP 33899 239 24 to to TO 33899 239 25 double double VB 33899 239 26 the the DT 33899 239 27 leverage leverage NN 33899 239 28 when when WRB 33899 239 29 being be VBG 33899 239 30 used use VBN 33899 239 31 to to IN 33899 239 32 _ _ NNP 33899 239 33 open open JJ 33899 239 34 _ _ IN 33899 239 35 the the DT 33899 239 36 cylinder cylinder NN 33899 239 37 ( ( -LRB- 33899 239 38 Fig fig NN 33899 239 39 . . . 33899 240 1 9 9 LS 33899 240 2 ) ) -RRB- 33899 240 3 . . . 33899 241 1 The the DT 33899 241 2 idea idea NN 33899 241 3 is be VBZ 33899 241 4 to to TO 33899 241 5 avoid avoid VB 33899 241 6 the the DT 33899 241 7 possibility possibility NN 33899 241 8 , , , 33899 241 9 which which WDT 33899 241 10 has have VBZ 33899 241 11 been be VBN 33899 241 12 known know VBN 33899 241 13 to to TO 33899 241 14 occur occur VB 33899 241 15 , , , 33899 241 16 of of IN 33899 241 17 the the DT 33899 241 18 cylinder cylinder NN 33899 241 19 valve valve NN 33899 241 20 being be VBG 33899 241 21 screwed screw VBN 33899 241 22 down down RP 33899 241 23 by by IN 33899 241 24 a a DT 33899 241 25 powerful powerful JJ 33899 241 26 wrist wrist NN 33899 241 27 and and CC 33899 241 28 defying defy VBG 33899 241 29 the the DT 33899 241 30 efforts effort NNS 33899 241 31 of of IN 33899 241 32 the the DT 33899 241 33 despairing despair VBG 33899 241 34 lanternist lanternist NN 33899 241 35 to to TO 33899 241 36 open open VB 33899 241 37 it -PRON- PRP 33899 241 38 . . . 33899 242 1 [ [ -LRB- 33899 242 2 Illustration illustration NN 33899 242 3 : : : 33899 242 4 FIG FIG NNP 33899 242 5 . . . 33899 243 1 10.--Fine 10.--fine CD 33899 243 2 Adjustment Adjustment NNP 33899 243 3 Valve Valve NNP 33899 243 4 . . . 33899 243 5 ] ] -RRB- 33899 244 1 Cylinder cylinder NN 33899 244 2 nozzles nozzle NNS 33899 244 3 are be VBP 33899 244 4 unfortunately unfortunately RB 33899 244 5 not not RB 33899 244 6 yet yet RB 33899 244 7 standardised standardise VBN 33899 244 8 , , , 33899 244 9 but but CC 33899 244 10 those those DT 33899 244 11 most most RBS 33899 244 12 frequently frequently RB 33899 244 13 met meet VBD 33899 244 14 with with IN 33899 244 15 in in IN 33899 244 16 this this DT 33899 244 17 country country NN 33899 244 18 are be VBP 33899 244 19 those those DT 33899 244 20 adopted adopt VBN 33899 244 21 by by IN 33899 244 22 the the DT 33899 244 23 British British NNP 33899 244 24 Oxygen Oxygen NNP 33899 244 25 Company Company NNP 33899 244 26 , , , 33899 244 27 both both DT 33899 244 28 oxygen oxygen NN 33899 244 29 and and CC 33899 244 30 coal coal NN 33899 244 31 gas gas NN 33899 244 32 cylinders cylinder NNS 33899 244 33 being be VBG 33899 244 34 fitted fit VBN 33899 244 35 with with IN 33899 244 36 corresponding correspond VBG 33899 244 37 _ _ NNP 33899 244 38 internal internal JJ 33899 244 39 _ _ NNP 33899 244 40 screws screw VBZ 33899 244 41 7/8 7/8 CD 33899 244 42 inch inch NN 33899 244 43 diameter diameter NN 33899 244 44 , , , 33899 244 45 those those DT 33899 244 46 for for IN 33899 244 47 oxygen oxygen NN 33899 244 48 being be VBG 33899 244 49 _ _ NNP 33899 244 50 right right RB 33899 244 51 - - HYPH 33899 244 52 handed handed JJ 33899 244 53 _ _ NNP 33899 244 54 , , , 33899 244 55 and and CC 33899 244 56 those those DT 33899 244 57 for for IN 33899 244 58 coal coal NN 33899 244 59 gas gas NN 33899 244 60 _ _ NNP 33899 244 61 left leave VBD 33899 244 62 - - HYPH 33899 244 63 handed handed JJ 33899 244 64 _ _ NNP 33899 244 65 , , , 33899 244 66 and and CC 33899 244 67 in in IN 33899 244 68 each each DT 33899 244 69 case case NN 33899 244 70 terminated terminate VBN 33899 244 71 at at IN 33899 244 72 the the DT 33899 244 73 bottom bottom NN 33899 244 74 by by IN 33899 244 75 a a DT 33899 244 76 hollow hollow JJ 33899 244 77 metal metal NN 33899 244 78 cone cone NN 33899 244 79 . . . 33899 245 1 As as IN 33899 245 2 such such PDT 33899 245 3 an an DT 33899 245 4 internal internal JJ 33899 245 5 screw screw NN 33899 245 6 can can MD 33899 245 7 not not RB 33899 245 8 obviously obviously RB 33899 245 9 be be VB 33899 245 10 connected connect VBN 33899 245 11 to to IN 33899 245 12 a a DT 33899 245 13 piece piece NN 33899 245 14 of of IN 33899 245 15 rubber rubber NN 33899 245 16 tubing tubing NN 33899 245 17 , , , 33899 245 18 some some DT 33899 245 19 type type NN 33899 245 20 of of IN 33899 245 21 screw screw NN 33899 245 22 connector connector NN 33899 245 23 must must MD 33899 245 24 be be VB 33899 245 25 employed employ VBN 33899 245 26 , , , 33899 245 27 and and CC 33899 245 28 this this DT 33899 245 29 may may MD 33899 245 30 take take VB 33899 245 31 one one CD 33899 245 32 of of IN 33899 245 33 three three CD 33899 245 34 forms form NNS 33899 245 35 : : : 33899 245 36 ( ( -LRB- 33899 245 37 1 1 LS 33899 245 38 ) ) -RRB- 33899 245 39 A a DT 33899 245 40 simple simple JJ 33899 245 41 connecting connect VBG 33899 245 42 nozzle nozzle NN 33899 245 43 , , , 33899 245 44 ( ( -LRB- 33899 245 45 2 2 LS 33899 245 46 ) ) -RRB- 33899 245 47 a a DT 33899 245 48 fine fine JJ 33899 245 49 adjustment adjustment NN 33899 245 50 valve valve NN 33899 245 51 , , , 33899 245 52 or or CC 33899 245 53 ( ( -LRB- 33899 245 54 3 3 LS 33899 245 55 ) ) -RRB- 33899 245 56 a a DT 33899 245 57 regulator regulator NN 33899 245 58 . . . 33899 246 1 The the DT 33899 246 2 first first JJ 33899 246 3 is be VBZ 33899 246 4 seldom seldom RB 33899 246 5 used use VBN 33899 246 6 in in IN 33899 246 7 practice practice NN 33899 246 8 for for IN 33899 246 9 lantern lantern JJ 33899 246 10 work work NN 33899 246 11 , , , 33899 246 12 for for IN 33899 246 13 the the DT 33899 246 14 reason reason NN 33899 246 15 that that IN 33899 246 16 the the DT 33899 246 17 direct direct JJ 33899 246 18 pressure pressure NN 33899 246 19 of of IN 33899 246 20 a a DT 33899 246 21 full full JJ 33899 246 22 cylinder cylinder NN 33899 246 23 ( ( -LRB- 33899 246 24 120 120 CD 33899 246 25 atmospheres atmosphere NNS 33899 246 26 ) ) -RRB- 33899 246 27 can can MD 33899 246 28 not not RB 33899 246 29 be be VB 33899 246 30 checked check VBN 33899 246 31 or or CC 33899 246 32 controlled control VBN 33899 246 33 by by IN 33899 246 34 a a DT 33899 246 35 tap tap NN 33899 246 36 on on IN 33899 246 37 the the DT 33899 246 38 jet jet NN 33899 246 39 , , , 33899 246 40 as as IN 33899 246 41 the the DT 33899 246 42 intervening intervene VBG 33899 246 43 rubber rubber NN 33899 246 44 tubing tubing NN 33899 246 45 would would MD 33899 246 46 either either CC 33899 246 47 burst burst VB 33899 246 48 or or CC 33899 246 49 blow blow VB 33899 246 50 off off RP 33899 246 51 , , , 33899 246 52 and and CC 33899 246 53 must must MD 33899 246 54 therefore therefore RB 33899 246 55 be be VB 33899 246 56 regulated regulate VBN 33899 246 57 at at IN 33899 246 58 the the DT 33899 246 59 cylinder cylinder NN 33899 246 60 nozzle nozzle VB 33899 246 61 itself -PRON- PRP 33899 246 62 , , , 33899 246 63 and and CC 33899 246 64 gradually gradually RB 33899 246 65 readjusted readjust VBN 33899 246 66 as as IN 33899 246 67 the the DT 33899 246 68 pressure pressure NN 33899 246 69 diminishes diminish VBZ 33899 246 70 . . . 33899 247 1 To to TO 33899 247 2 achieve achieve VB 33899 247 3 this this DT 33899 247 4 regulation regulation NN 33899 247 5 with with IN 33899 247 6 the the DT 33899 247 7 ordinary ordinary JJ 33899 247 8 cylinder cylinder NN 33899 247 9 key key NN 33899 247 10 is be VBZ 33899 247 11 difficult difficult JJ 33899 247 12 , , , 33899 247 13 though though IN 33899 247 14 possible possible JJ 33899 247 15 to to IN 33899 247 16 a a DT 33899 247 17 careful careful JJ 33899 247 18 operator operator NN 33899 247 19 , , , 33899 247 20 but but CC 33899 247 21 for for IN 33899 247 22 a a DT 33899 247 23 slight slight JJ 33899 247 24 extra extra JJ 33899 247 25 expense expense NN 33899 247 26 a a DT 33899 247 27 combined combined JJ 33899 247 28 nozzle nozzle NN 33899 247 29 and and CC 33899 247 30 _ _ NNP 33899 247 31 fine fine JJ 33899 247 32 adjustment adjustment NN 33899 247 33 valve valve NN 33899 247 34 _ _ NNP 33899 247 35 ( ( -LRB- 33899 247 36 Fig Fig NNP 33899 247 37 . . . 33899 248 1 10 10 LS 33899 248 2 ) ) -RRB- 33899 248 3 can can MD 33899 248 4 be be VB 33899 248 5 obtained obtain VBN 33899 248 6 , , , 33899 248 7 and and CC 33899 248 8 regulation regulation NN 33899 248 9 with with IN 33899 248 10 this this DT 33899 248 11 is be VBZ 33899 248 12 { { -LRB- 33899 248 13 20 20 CD 33899 248 14 } } -RRB- 33899 248 15 infinitely infinitely RB 33899 248 16 easier easy JJR 33899 248 17 . . . 33899 249 1 The the DT 33899 249 2 best good JJS 33899 249 3 plan plan NN 33899 249 4 of of IN 33899 249 5 all all DT 33899 249 6 , , , 33899 249 7 however however RB 33899 249 8 , , , 33899 249 9 is be VBZ 33899 249 10 to to TO 33899 249 11 use use VB 33899 249 12 an an DT 33899 249 13 automatic automatic JJ 33899 249 14 regulator regulator NN 33899 249 15 , , , 33899 249 16 which which WDT 33899 249 17 not not RB 33899 249 18 only only RB 33899 249 19 reduces reduce VBZ 33899 249 20 the the DT 33899 249 21 pressure pressure NN 33899 249 22 so so IN 33899 249 23 as as IN 33899 249 24 to to TO 33899 249 25 permit permit VB 33899 249 26 of of IN 33899 249 27 the the DT 33899 249 28 required require VBN 33899 249 29 adjustments adjustment NNS 33899 249 30 being be VBG 33899 249 31 made make VBN 33899 249 32 at at IN 33899 249 33 the the DT 33899 249 34 jet jet NN 33899 249 35 - - HYPH 33899 249 36 taps tap NNS 33899 249 37 , , , 33899 249 38 but but CC 33899 249 39 also also RB 33899 249 40 maintains maintain VBZ 33899 249 41 a a DT 33899 249 42 practically practically RB 33899 249 43 steady steady JJ 33899 249 44 supply supply NN 33899 249 45 as as IN 33899 249 46 the the DT 33899 249 47 cylinder cylinder NN 33899 249 48 empties empty NNS 33899 249 49 , , , 33899 249 50 thereby thereby RB 33899 249 51 obviating obviate VBG 33899 249 52 continual continual JJ 33899 249 53 readjustments readjustment NNS 33899 249 54 . . . 33899 250 1 Regulators regulator NNS 33899 250 2 are be VBP 33899 250 3 now now RB 33899 250 4 so so RB 33899 250 5 inexpensive inexpensive JJ 33899 250 6 that that IN 33899 250 7 they -PRON- PRP 33899 250 8 have have VBP 33899 250 9 come come VBN 33899 250 10 into into IN 33899 250 11 almost almost RB 33899 250 12 universal universal JJ 33899 250 13 use use NN 33899 250 14 , , , 33899 250 15 and and CC 33899 250 16 are be VBP 33899 250 17 generally generally RB 33899 250 18 reckoned reckon VBN 33899 250 19 an an DT 33899 250 20 indispensable indispensable JJ 33899 250 21 part part NN 33899 250 22 of of IN 33899 250 23 a a DT 33899 250 24 limelight limelight JJ 33899 250 25 lantern lantern JJ 33899 250 26 equipment equipment NN 33899 250 27 . . . 33899 251 1 The the DT 33899 251 2 form form NN 33899 251 3 of of IN 33899 251 4 regulator regulator NN 33899 251 5 in in IN 33899 251 6 most most JJS 33899 251 7 common common JJ 33899 251 8 use use NN 33899 251 9 is be VBZ 33899 251 10 that that IN 33899 251 11 usually usually RB 33899 251 12 known know VBN 33899 251 13 as as IN 33899 251 14 ' ' `` 33899 251 15 Beard Beard NNP 33899 251 16 's 's POS 33899 251 17 , , , 33899 251 18 ' ' '' 33899 251 19 having have VBG 33899 251 20 been be VBN 33899 251 21 originally originally RB 33899 251 22 designed design VBN 33899 251 23 and and CC 33899 251 24 patented patent VBN 33899 251 25 by by IN 33899 251 26 Messrs. Messrs. NNP 33899 251 27 R. R. NNP 33899 251 28 Beard Beard NNP 33899 251 29 & & CC 33899 251 30 Sons Sons NNPS 33899 251 31 , , , 33899 251 32 though though IN 33899 251 33 as as IN 33899 251 34 the the DT 33899 251 35 patent patent NN 33899 251 36 has have VBZ 33899 251 37 now now RB 33899 251 38 expired expire VBN 33899 251 39 it -PRON- PRP 33899 251 40 is be VBZ 33899 251 41 open open JJ 33899 251 42 to to IN 33899 251 43 any any DT 33899 251 44 firm firm NN 33899 251 45 to to TO 33899 251 46 make make VB 33899 251 47 the the DT 33899 251 48 same same JJ 33899 251 49 article article NN 33899 251 50 if if IN 33899 251 51 they -PRON- PRP 33899 251 52 desire desire VBP 33899 251 53 . . . 33899 252 1 [ [ -LRB- 33899 252 2 Illustration illustration NN 33899 252 3 : : : 33899 252 4 FIG FIG NNP 33899 252 5 . . . 33899 253 1 11.--Construction 11.--construction CD 33899 253 2 of of IN 33899 253 3 Beard Beard NNP 33899 253 4 's 's POS 33899 253 5 Regulator Regulator NNP 33899 253 6 . . . 33899 253 7 ] ] -RRB- 33899 254 1 The the DT 33899 254 2 construction construction NN 33899 254 3 of of IN 33899 254 4 Beard Beard NNP 33899 254 5 's 's POS 33899 254 6 Regulator Regulator NNP 33899 254 7 is be VBZ 33899 254 8 shown show VBN 33899 254 9 in in IN 33899 254 10 Fig Fig NNP 33899 254 11 . . . 33899 255 1 11 11 CD 33899 255 2 . . . 33899 256 1 The the DT 33899 256 2 gas gas NN 33899 256 3 enters enter VBZ 33899 256 4 from from IN 33899 256 5 below below RB 33899 256 6 into into IN 33899 256 7 a a DT 33899 256 8 rubber rubber NN 33899 256 9 bag bag NN 33899 256 10 , , , 33899 256 11 C C NNP 33899 256 12 , , , 33899 256 13 from from IN 33899 256 14 which which WDT 33899 256 15 it -PRON- PRP 33899 256 16 can can MD 33899 256 17 emerge emerge VB 33899 256 18 through through IN 33899 256 19 the the DT 33899 256 20 nozzle nozzle NN 33899 256 21 . . . 33899 257 1 Any any DT 33899 257 2 accumulation accumulation NN 33899 257 3 of of IN 33899 257 4 gas gas NN 33899 257 5 raises raise VBZ 33899 257 6 the the DT 33899 257 7 bellows bellow NNS 33899 257 8 against against IN 33899 257 9 the the DT 33899 257 10 pressure pressure NN 33899 257 11 of of IN 33899 257 12 a a DT 33899 257 13 spiral spiral JJ 33899 257 14 spring spring NN 33899 257 15 pressing press VBG 33899 257 16 it -PRON- PRP 33899 257 17 down down RP 33899 257 18 , , , 33899 257 19 and and CC 33899 257 20 this this DT 33899 257 21 brings bring VBZ 33899 257 22 into into IN 33899 257 23 action action NN 33899 257 24 an an DT 33899 257 25 arrangement arrangement NN 33899 257 26 of of IN 33899 257 27 so so RB 33899 257 28 - - HYPH 33899 257 29 called call VBN 33899 257 30 ' ' `` 33899 257 31 Lazy Lazy NNP 33899 257 32 Levers Levers NNPS 33899 257 33 , , , 33899 257 34 ' ' '' 33899 257 35 which which WDT 33899 257 36 in in IN 33899 257 37 turn turn NN 33899 257 38 presses press VBZ 33899 257 39 down down RP 33899 257 40 a a DT 33899 257 41 small small JJ 33899 257 42 conical conical JJ 33899 257 43 valve valve NN 33899 257 44 and and CC 33899 257 45 closes close VBZ 33899 257 46 the the DT 33899 257 47 supply supply NN 33899 257 48 from from IN 33899 257 49 the the DT 33899 257 50 cylinder cylinder NN 33899 257 51 , , , 33899 257 52 this this DT 33899 257 53 valve valve NN 33899 257 54 re re JJ 33899 257 55 - - JJ 33899 257 56 opening opening JJ 33899 257 57 immediately immediately RB 33899 257 58 the the DT 33899 257 59 pressure pressure NN 33899 257 60 diminishes diminishe NNS 33899 257 61 . . . 33899 258 1 The the DT 33899 258 2 outward outward JJ 33899 258 3 form form NN 33899 258 4 of of IN 33899 258 5 this this DT 33899 258 6 regulator regulator NN 33899 258 7 is be VBZ 33899 258 8 shown show VBN 33899 258 9 in in IN 33899 258 10 Fig Fig NNP 33899 258 11 . . . 33899 259 1 12 12 CD 33899 259 2 , , , 33899 259 3 { { -LRB- 33899 259 4 21 21 CD 33899 259 5 } } -RRB- 33899 259 6 which which WDT 33899 259 7 incidentally incidentally RB 33899 259 8 also also RB 33899 259 9 illustrates illustrate VBZ 33899 259 10 the the DT 33899 259 11 usual usual JJ 33899 259 12 form form NN 33899 259 13 of of IN 33899 259 14 connection connection NN 33899 259 15 to to IN 33899 259 16 the the DT 33899 259 17 cylinder cylinder NN 33899 259 18 , , , 33899 259 19 referred refer VBD 33899 259 20 to to TO 33899 259 21 later later RB 33899 259 22 on on RB 33899 259 23 . . . 33899 260 1 In in IN 33899 260 2 Beard Beard NNP 33899 260 3 's 's POS 33899 260 4 Regulator Regulator NNP 33899 260 5 the the DT 33899 260 6 pressure pressure NN 33899 260 7 at at IN 33899 260 8 which which WDT 33899 260 9 the the DT 33899 260 10 gas gas NN 33899 260 11 can can MD 33899 260 12 be be VB 33899 260 13 delivered deliver VBN 33899 260 14 is be VBZ 33899 260 15 determined determine VBN 33899 260 16 by by IN 33899 260 17 the the DT 33899 260 18 strength strength NN 33899 260 19 of of IN 33899 260 20 the the DT 33899 260 21 spiral spiral JJ 33899 260 22 spring spring NN 33899 260 23 , , , 33899 260 24 and and CC 33899 260 25 can can MD 33899 260 26 only only RB 33899 260 27 be be VB 33899 260 28 altered alter VBN 33899 260 29 by by IN 33899 260 30 changing change VBG 33899 260 31 this this DT 33899 260 32 spring spring NN 33899 260 33 . . . 33899 261 1 [ [ -LRB- 33899 261 2 Illustration illustration NN 33899 261 3 : : : 33899 261 4 FIG FIG NNP 33899 261 5 . . . 33899 262 1 12.--Beard 12.--beard CD 33899 262 2 's 's POS 33899 262 3 Regulator Regulator NNP 33899 262 4 . . . 33899 262 5 ] ] -RRB- 33899 263 1 In in IN 33899 263 2 practice practice NN 33899 263 3 Beard Beard NNP 33899 263 4 's 's POS 33899 263 5 Regulators regulator NNS 33899 263 6 are be VBP 33899 263 7 supplied supply VBN 33899 263 8 set set VBN 33899 263 9 to to IN 33899 263 10 a a DT 33899 263 11 low low JJ 33899 263 12 pressure pressure NN 33899 263 13 for for IN 33899 263 14 ordinary ordinary JJ 33899 263 15 mixed mixed JJ 33899 263 16 or or CC 33899 263 17 ' ' `` 33899 263 18 blow blow NN 33899 263 19 - - HYPH 33899 263 20 through through IN 33899 263 21 ' ' '' 33899 263 22 jets jet NNS 33899 263 23 and and CC 33899 263 24 for for IN 33899 263 25 a a DT 33899 263 26 higher high JJR 33899 263 27 pressure pressure NN 33899 263 28 ( ( -LRB- 33899 263 29 14 14 CD 33899 263 30 - - SYM 33899 263 31 16 16 CD 33899 263 32 inches inch NNS 33899 263 33 ) ) -RRB- 33899 263 34 for for IN 33899 263 35 ' ' `` 33899 263 36 injector injector NN 33899 263 37 ' ' '' 33899 263 38 jets jet NNS 33899 263 39 . . . 33899 264 1 At at IN 33899 264 2 this this DT 33899 264 3 latter latter JJ 33899 264 4 pressure pressure NN 33899 264 5 the the DT 33899 264 6 rubber rubber NN 33899 264 7 tubing tubing NN 33899 264 8 used use VBN 33899 264 9 must must MD 33899 264 10 be be VB 33899 264 11 fairly fairly RB 33899 264 12 thick thick JJ 33899 264 13 and and CC 33899 264 14 strong strong JJ 33899 264 15 and and CC 33899 264 16 well well RB 33899 264 17 tied tie VBN 33899 264 18 on on RB 33899 264 19 , , , 33899 264 20 and and CC 33899 264 21 even even RB 33899 264 22 so so IN 33899 264 23 the the DT 33899 264 24 taps tap NNS 33899 264 25 of of IN 33899 264 26 the the DT 33899 264 27 jet jet NN 33899 264 28 should should MD 33899 264 29 not not RB 33899 264 30 be be VB 33899 264 31 turned turn VBN 33899 264 32 entirely entirely RB 33899 264 33 off off IN 33899 264 34 unless unless IN 33899 264 35 the the DT 33899 264 36 gas gas NN 33899 264 37 at at IN 33899 264 38 the the DT 33899 264 39 cylinder cylinder NN 33899 264 40 is be VBZ 33899 264 41 likewise likewise RB 33899 264 42 turned turn VBN 33899 264 43 off off RP 33899 264 44 immediately immediately RB 33899 264 45 afterwards afterwards RB 33899 264 46 . . . 33899 265 1 The the DT 33899 265 2 British British NNP 33899 265 3 Oxygen Oxygen NNP 33899 265 4 Company Company NNP 33899 265 5 make make VBP 33899 265 6 a a DT 33899 265 7 regulator regulator NN 33899 265 8 which which WDT 33899 265 9 can can MD 33899 265 10 be be VB 33899 265 11 set set VBN 33899 265 12 to to IN 33899 265 13 any any DT 33899 265 14 desired desire VBN 33899 265 15 pressure pressure NN 33899 265 16 , , , 33899 265 17 but but CC 33899 265 18 it -PRON- PRP 33899 265 19 is be VBZ 33899 265 20 not not RB 33899 265 21 quite quite RB 33899 265 22 so so RB 33899 265 23 delicate delicate JJ 33899 265 24 in in IN 33899 265 25 its -PRON- PRP$ 33899 265 26 action action NN 33899 265 27 as as IN 33899 265 28 Beard Beard NNP 33899 265 29 's 's POS 33899 265 30 , , , 33899 265 31 and and CC 33899 265 32 Messrs. Messrs. NNP 33899 265 33 Clarkson Clarkson NNP 33899 265 34 also also RB 33899 265 35 make make VBP 33899 265 36 a a DT 33899 265 37 pattern pattern NN 33899 265 38 regulator regulator NN 33899 265 39 which which WDT 33899 265 40 is be VBZ 33899 265 41 widely widely RB 33899 265 42 used use VBN 33899 265 43 and and CC 33899 265 44 well well RB 33899 265 45 spoken speak VBN 33899 265 46 of of IN 33899 265 47 . . . 33899 266 1 The the DT 33899 266 2 attachment attachment NN 33899 266 3 of of IN 33899 266 4 any any DT 33899 266 5 of of IN 33899 266 6 these these DT 33899 266 7 fittings fitting NNS 33899 266 8 to to IN 33899 266 9 the the DT 33899 266 10 cylinder cylinder NN 33899 266 11 is be VBZ 33899 266 12 a a DT 33899 266 13 somewhat somewhat RB 33899 266 14 peculiar peculiar JJ 33899 266 15 one one NN 33899 266 16 , , , 33899 266 17 as as IN 33899 266 18 will will MD 33899 266 19 be be VB 33899 266 20 seen see VBN 33899 266 21 on on IN 33899 266 22 reference reference NN 33899 266 23 to to IN 33899 266 24 Fig Fig NNP 33899 266 25 . . . 33899 267 1 10 10 CD 33899 267 2 or or CC 33899 267 3 Fig Fig NNP 33899 267 4 . . . 33899 268 1 12 12 CD 33899 268 2 . . . 33899 269 1 The the DT 33899 269 2 regulator regulator NN 33899 269 3 or or CC 33899 269 4 nozzle nozzle NN 33899 269 5 ends end VBZ 33899 269 6 at at IN 33899 269 7 its -PRON- PRP$ 33899 269 8 lower low JJR 33899 269 9 extremity extremity NN 33899 269 10 in in IN 33899 269 11 a a DT 33899 269 12 screw screw NN 33899 269 13 and and CC 33899 269 14 cone cone NN 33899 269 15 , , , 33899 269 16 the the DT 33899 269 17 latter latter JJ 33899 269 18 being be VBG 33899 269 19 intended intend VBN 33899 269 20 to to TO 33899 269 21 make make VB 33899 269 22 a a DT 33899 269 23 gas gas NN 33899 269 24 - - HYPH 33899 269 25 tight tight JJ 33899 269 26 connection connection NN 33899 269 27 with with IN 33899 269 28 the the DT 33899 269 29 internal internal JJ 33899 269 30 cone cone NN 33899 269 31 on on IN 33899 269 32 the the DT 33899 269 33 cylinder cylinder NN 33899 269 34 , , , 33899 269 35 and and CC 33899 269 36 over over IN 33899 269 37 this this DT 33899 269 38 screws screw VBZ 33899 269 39 a a DT 33899 269 40 loose loose JJ 33899 269 41 wing wing NN 33899 269 42 piece piece NN 33899 269 43 with with IN 33899 269 44 another another DT 33899 269 45 outer outer JJ 33899 269 46 screw screw NN 33899 269 47 , , , 33899 269 48 this this DT 33899 269 49 latter latter JJ 33899 269 50 fitting fit VBG 33899 269 51 the the DT 33899 269 52 thread thread NN 33899 269 53 in in IN 33899 269 54 the the DT 33899 269 55 cylinder cylinder NN 33899 269 56 . . . 33899 270 1 In in IN 33899 270 2 making make VBG 33899 270 3 the the DT 33899 270 4 connection connection NN 33899 270 5 care care NN 33899 270 6 must must MD 33899 270 7 be be VB 33899 270 8 taken take VBN 33899 270 9 that that IN 33899 270 10 the the DT 33899 270 11 wing wing NN 33899 270 12 piece piece NN 33899 270 13 is be VBZ 33899 270 14 not not RB 33899 270 15 screwed screw VBN 33899 270 16 too too RB 33899 270 17 far far RB 33899 270 18 down down IN 33899 270 19 the the DT 33899 270 20 inner inner JJ 33899 270 21 screw screw NN 33899 270 22 , , , 33899 270 23 or or CC 33899 270 24 the the DT 33899 270 25 cone cone NN 33899 270 26 will will MD 33899 270 27 not not RB 33899 270 28 reach reach VB 33899 270 29 down down RP 33899 270 30 and and CC 33899 270 31 make make VB 33899 270 32 a a DT 33899 270 33 tight tight JJ 33899 270 34 fit fit NN 33899 270 35 on on IN 33899 270 36 its -PRON- PRP$ 33899 270 37 { { -LRB- 33899 270 38 22 22 CD 33899 270 39 } } -RRB- 33899 270 40 seating seating NN 33899 270 41 ; ; : 33899 270 42 in in IN 33899 270 43 its -PRON- PRP$ 33899 270 44 correct correct JJ 33899 270 45 position position NN 33899 270 46 the the DT 33899 270 47 wing wing NN 33899 270 48 piece piece NN 33899 270 49 when when WRB 33899 270 50 clamped clamp VBN 33899 270 51 down down RP 33899 270 52 should should MD 33899 270 53 leave leave VB 33899 270 54 a a DT 33899 270 55 turn turn NN 33899 270 56 or or CC 33899 270 57 two two CD 33899 270 58 of of IN 33899 270 59 its -PRON- PRP$ 33899 270 60 thread thread NN 33899 270 61 exposed expose VBN 33899 270 62 , , , 33899 270 63 in in IN 33899 270 64 order order NN 33899 270 65 to to TO 33899 270 66 ensure ensure VB 33899 270 67 that that IN 33899 270 68 the the DT 33899 270 69 cone cone NN 33899 270 70 does do VBZ 33899 270 71 bed bed NN 33899 270 72 properly properly RB 33899 270 73 . . . 33899 271 1 [ [ -LRB- 33899 271 2 Illustration illustration NN 33899 271 3 : : : 33899 271 4 FIG FIG NNP 33899 271 5 . . . 33899 272 1 13.--Regulator 13.--regulator CD 33899 272 2 and and CC 33899 272 3 Gauge Gauge NNP 33899 272 4 . . . 33899 272 5 ] ] -RRB- 33899 273 1 Care care NN 33899 273 2 should should MD 33899 273 3 be be VB 33899 273 4 taken take VBN 33899 273 5 that that IN 33899 273 6 the the DT 33899 273 7 nozzle nozzle NN 33899 273 8 of of IN 33899 273 9 the the DT 33899 273 10 cylinder cylinder NN 33899 273 11 is be VBZ 33899 273 12 free free JJ 33899 273 13 from from IN 33899 273 14 dust dust NN 33899 273 15 before before IN 33899 273 16 attaching attach VBG 33899 273 17 any any DT 33899 273 18 of of IN 33899 273 19 these these DT 33899 273 20 fittings fitting NNS 33899 273 21 : : : 33899 273 22 the the DT 33899 273 23 best good JJS 33899 273 24 plan plan NN 33899 273 25 is be VBZ 33899 273 26 first first JJ 33899 273 27 to to TO 33899 273 28 blow blow VB 33899 273 29 into into IN 33899 273 30 it -PRON- PRP 33899 273 31 , , , 33899 273 32 and and CC 33899 273 33 finally finally RB 33899 273 34 wipe wipe VB 33899 273 35 it -PRON- PRP 33899 273 36 round round RB 33899 273 37 with with IN 33899 273 38 the the DT 33899 273 39 finger finger NN 33899 273 40 . . . 33899 274 1 Most Most JJS 33899 274 2 professional professional JJ 33899 274 3 operators operator NNS 33899 274 4 _ _ NNP 33899 274 5 hammer hammer NN 33899 274 6 _ _ IN 33899 274 7 the the DT 33899 274 8 wing wing NN 33899 274 9 piece piece NN 33899 274 10 home home RB 33899 274 11 with with IN 33899 274 12 a a DT 33899 274 13 spanner spanner NN 33899 274 14 or or CC 33899 274 15 other other JJ 33899 274 16 convenient convenient JJ 33899 274 17 implement implement VBP 33899 274 18 a a DT 33899 274 19 barbarous barbarous JJ 33899 274 20 method method NN 33899 274 21 and and CC 33899 274 22 really really RB 33899 274 23 unnecessary unnecessary JJ 33899 274 24 if if IN 33899 274 25 the the DT 33899 274 26 cones cone NNS 33899 274 27 are be VBP 33899 274 28 in in IN 33899 274 29 good good JJ 33899 274 30 condition condition NN 33899 274 31 , , , 33899 274 32 but but CC 33899 274 33 , , , 33899 274 34 nevertheless nevertheless RB 33899 274 35 , , , 33899 274 36 almost almost RB 33899 274 37 always always RB 33899 274 38 adopted adopt VBN 33899 274 39 in in IN 33899 274 40 practice practice NN 33899 274 41 . . . 33899 275 1 PRESSURE PRESSURE NNP 33899 275 2 GAUGES.--These GAUGES.--These NNP 33899 275 3 are be VBP 33899 275 4 useful useful JJ 33899 275 5 in in IN 33899 275 6 determining determine VBG 33899 275 7 the the DT 33899 275 8 amount amount NN 33899 275 9 of of IN 33899 275 10 gas gas NN 33899 275 11 remaining remain VBG 33899 275 12 in in IN 33899 275 13 a a DT 33899 275 14 cylinder cylinder NN 33899 275 15 and and CC 33899 275 16 are be VBP 33899 275 17 of of IN 33899 275 18 a a DT 33899 275 19 very very RB 33899 275 20 usual usual JJ 33899 275 21 type type NN 33899 275 22 ; ; : 33899 275 23 they -PRON- PRP 33899 275 24 may may MD 33899 275 25 either either CC 33899 275 26 be be VB 33899 275 27 screwed screw VBN 33899 275 28 on on RP 33899 275 29 to to IN 33899 275 30 the the DT 33899 275 31 cylinder cylinder NN 33899 275 32 before before IN 33899 275 33 commencing commence VBG 33899 275 34 to to IN 33899 275 35 work work VB 33899 275 36 and and CC 33899 275 37 taken take VBN 33899 275 38 off off RP 33899 275 39 again again RB 33899 275 40 to to TO 33899 275 41 screw screw VB 33899 275 42 on on IN 33899 275 43 the the DT 33899 275 44 regulator regulator NN 33899 275 45 , , , 33899 275 46 or or CC 33899 275 47 they -PRON- PRP 33899 275 48 can can MD 33899 275 49 be be VB 33899 275 50 supplied supply VBN 33899 275 51 fitted fit VBN 33899 275 52 to to IN 33899 275 53 the the DT 33899 275 54 regulator regulator NN 33899 275 55 itself -PRON- PRP 33899 275 56 , , , 33899 275 57 in in IN 33899 275 58 which which WDT 33899 275 59 case case NN 33899 275 60 they -PRON- PRP 33899 275 61 can can MD 33899 275 62 be be VB 33899 275 63 observed observe VBN 33899 275 64 during during IN 33899 275 65 the the DT 33899 275 66 course course NN 33899 275 67 of of IN 33899 275 68 the the DT 33899 275 69 exhibition exhibition NN 33899 275 70 ( ( -LRB- 33899 275 71 Fig fig NN 33899 275 72 . . . 33899 276 1 13 13 CD 33899 276 2 ) ) -RRB- 33899 276 3 . . . 33899 277 1 As as IN 33899 277 2 the the DT 33899 277 3 same same JJ 33899 277 4 gauge gauge NN 33899 277 5 may may MD 33899 277 6 be be VB 33899 277 7 used use VBN 33899 277 8 for for IN 33899 277 9 cylinders cylinder NNS 33899 277 10 of of IN 33899 277 11 different different JJ 33899 277 12 sizes size NNS 33899 277 13 ( ( -LRB- 33899 277 14 though though IN 33899 277 15 _ _ NNP 33899 277 16 never never RB 33899 277 17 _ _ NNP 33899 277 18 for for IN 33899 277 19 those those DT 33899 277 20 containing contain VBG 33899 277 21 { { -LRB- 33899 277 22 23 23 CD 33899 277 23 } } -RRB- 33899 277 24 different different JJ 33899 277 25 gases gas NNS 33899 277 26 ) ) -RRB- 33899 277 27 , , , 33899 277 28 they -PRON- PRP 33899 277 29 simply simply RB 33899 277 30 register register VBP 33899 277 31 in in IN 33899 277 32 atmospheres atmosphere NNS 33899 277 33 , , , 33899 277 34 and and CC 33899 277 35 knowing know VBG 33899 277 36 that that IN 33899 277 37 a a DT 33899 277 38 full full JJ 33899 277 39 cylinder cylinder NN 33899 277 40 shows show VBZ 33899 277 41 a a DT 33899 277 42 pressure pressure NN 33899 277 43 of of IN 33899 277 44 120 120 CD 33899 277 45 atmospheres atmosphere NNS 33899 277 46 , , , 33899 277 47 the the DT 33899 277 48 requisite requisite JJ 33899 277 49 calculation calculation NN 33899 277 50 must must MD 33899 277 51 be be VB 33899 277 52 made make VBN 33899 277 53 to to TO 33899 277 54 determine determine VB 33899 277 55 how how WRB 33899 277 56 many many JJ 33899 277 57 cubic cubic JJ 33899 277 58 feet foot NNS 33899 277 59 are be VBP 33899 277 60 unused unused JJ 33899 277 61 . . . 33899 278 1 In in IN 33899 278 2 the the DT 33899 278 3 case case NN 33899 278 4 of of IN 33899 278 5 oxygen oxygen NN 33899 278 6 cylinders cylinder VBZ 33899 278 7 an an DT 33899 278 8 approximate approximate JJ 33899 278 9 idea idea NN 33899 278 10 of of IN 33899 278 11 the the DT 33899 278 12 amount amount NN 33899 278 13 of of IN 33899 278 14 gas gas NN 33899 278 15 remaining remain VBG 33899 278 16 can can MD 33899 278 17 be be VB 33899 278 18 got get VBN 33899 278 19 by by IN 33899 278 20 _ _ NNP 33899 278 21 weighing weigh VBG 33899 278 22 _ _ NNP 33899 278 23 it -PRON- PRP 33899 278 24 carefully carefully RB 33899 278 25 when when WRB 33899 278 26 known know VBN 33899 278 27 to to TO 33899 278 28 be be VB 33899 278 29 either either CC 33899 278 30 absolutely absolutely RB 33899 278 31 full full JJ 33899 278 32 or or CC 33899 278 33 absolutely absolutely RB 33899 278 34 empty empty JJ 33899 278 35 , , , 33899 278 36 and and CC 33899 278 37 re re VB 33899 278 38 - - VB 33899 278 39 weighing weigh VBG 33899 278 40 it -PRON- PRP 33899 278 41 when when WRB 33899 278 42 information information NN 33899 278 43 is be VBZ 33899 278 44 required require VBN 33899 278 45 . . . 33899 279 1 Oxygen oxygen NN 33899 279 2 weighs weigh VBZ 33899 279 3 approximately approximately RB 33899 279 4 1.4 1.4 CD 33899 279 5 oz oz UH 33899 279 6 . . . 33899 280 1 per per IN 33899 280 2 cubic cubic JJ 33899 280 3 foot foot NN 33899 280 4 , , , 33899 280 5 and and CC 33899 280 6 this this DT 33899 280 7 is be VBZ 33899 280 8 easily easily RB 33899 280 9 detected detect VBN 33899 280 10 by by IN 33899 280 11 an an DT 33899 280 12 average average JJ 33899 280 13 scale scale NN 33899 280 14 . . . 33899 281 1 Coal coal NN 33899 281 2 gas gas NN 33899 281 3 is be VBZ 33899 281 4 too too RB 33899 281 5 light light JJ 33899 281 6 to to TO 33899 281 7 be be VB 33899 281 8 gauged gauge VBN 33899 281 9 in in IN 33899 281 10 this this DT 33899 281 11 way way NN 33899 281 12 . . . 33899 282 1 GAS gas NN 33899 282 2 - - HYPH 33899 282 3 BAGS BAGS NNP 33899 282 4 AND and CC 33899 282 5 GENERATORS.--It GENERATORS.--It NNP 33899 282 6 has have VBZ 33899 282 7 already already RB 33899 282 8 been be VBN 33899 282 9 remarked remark VBN 33899 282 10 that that IN 33899 282 11 there there EX 33899 282 12 are be VBP 33899 282 13 two two CD 33899 282 14 alternative alternative JJ 33899 282 15 methods method NNS 33899 282 16 of of IN 33899 282 17 obtaining obtain VBG 33899 282 18 gas gas NN 33899 282 19 under under IN 33899 282 20 pressure pressure NN 33899 282 21 for for IN 33899 282 22 limelight limelight NN 33899 282 23 purposes purpose NNS 33899 282 24 , , , 33899 282 25 viz viz NN 33899 282 26 . . . 33899 283 1 gas gas NN 33899 283 2 - - HYPH 33899 283 3 bags bag NNS 33899 283 4 and and CC 33899 283 5 generators generator NNS 33899 283 6 ( ( -LRB- 33899 283 7 the the DT 33899 283 8 latter latter JJ 33899 283 9 for for IN 33899 283 10 oxygen oxygen NN 33899 283 11 alone alone RB 33899 283 12 : : : 33899 283 13 there there EX 33899 283 14 is be VBZ 33899 283 15 no no DT 33899 283 16 good good JJ 33899 283 17 hydrogen hydrogen NN 33899 283 18 generator generator NN 33899 283 19 that that WDT 33899 283 20 I -PRON- PRP 33899 283 21 know know VBP 33899 283 22 of of IN 33899 283 23 ) ) -RRB- 33899 283 24 . . . 33899 284 1 In in IN 33899 284 2 both both PDT 33899 284 3 these these DT 33899 284 4 cases case NNS 33899 284 5 the the DT 33899 284 6 oxygen oxygen NN 33899 284 7 is be VBZ 33899 284 8 generated generate VBN 33899 284 9 by by IN 33899 284 10 heating heat VBG 33899 284 11 a a DT 33899 284 12 mixture mixture NN 33899 284 13 of of IN 33899 284 14 chlorate chlorate NN 33899 284 15 of of IN 33899 284 16 potash potash NN 33899 284 17 and and CC 33899 284 18 manganese manganese JJ 33899 284 19 black black JJ 33899 284 20 oxide oxide NN 33899 284 21 . . . 33899 285 1 In in IN 33899 285 2 the the DT 33899 285 3 case case NN 33899 285 4 of of IN 33899 285 5 gas gas NN 33899 285 6 - - HYPH 33899 285 7 bags bag NNS 33899 285 8 the the DT 33899 285 9 gas gas NN 33899 285 10 is be VBZ 33899 285 11 prepared prepare VBN 33899 285 12 beforehand beforehand RB 33899 285 13 and and CC 33899 285 14 passed pass VBD 33899 285 15 through through IN 33899 285 16 suitable suitable JJ 33899 285 17 purifiers purifier NNS 33899 285 18 into into IN 33899 285 19 a a DT 33899 285 20 rubber rubber NN 33899 285 21 gas gas NN 33899 285 22 - - HYPH 33899 285 23 bag bag NN 33899 285 24 . . . 33899 286 1 With with IN 33899 286 2 a a DT 33899 286 3 generator generator NN 33899 286 4 the the DT 33899 286 5 oxygen oxygen NN 33899 286 6 is be VBZ 33899 286 7 evolved evolve VBN 33899 286 8 during during IN 33899 286 9 the the DT 33899 286 10 exhibition exhibition NN 33899 286 11 itself -PRON- PRP 33899 286 12 ; ; : 33899 286 13 but but CC 33899 286 14 this this DT 33899 286 15 method method NN 33899 286 16 has have VBZ 33899 286 17 never never RB 33899 286 18 come come VBN 33899 286 19 into into IN 33899 286 20 very very RB 33899 286 21 general general JJ 33899 286 22 use use NN 33899 286 23 . . . 33899 287 1 Coal coal NN 33899 287 2 gas gas NN 33899 287 3 or or CC 33899 287 4 hydrogen hydrogen NN 33899 287 5 is be VBZ 33899 287 6 very very RB 33899 287 7 seldom seldom RB 33899 287 8 home home RB 33899 287 9 generated generate VBN 33899 287 10 ; ; : 33899 287 11 a a DT 33899 287 12 gas gas NN 33899 287 13 - - HYPH 33899 287 14 bag bag NN 33899 287 15 can can MD 33899 287 16 , , , 33899 287 17 if if IN 33899 287 18 necessary necessary JJ 33899 287 19 , , , 33899 287 20 be be VB 33899 287 21 filled fill VBN 33899 287 22 a a DT 33899 287 23 few few JJ 33899 287 24 miles mile NNS 33899 287 25 away away RB 33899 287 26 and and CC 33899 287 27 brought bring VBD 33899 287 28 full full JJ 33899 287 29 to to IN 33899 287 30 the the DT 33899 287 31 place place NN 33899 287 32 of of IN 33899 287 33 exhibition exhibition NN 33899 287 34 , , , 33899 287 35 or or CC 33899 287 36 filled fill VBN 33899 287 37 on on IN 33899 287 38 the the DT 33899 287 39 spot spot NN 33899 287 40 if if IN 33899 287 41 gas gas NN 33899 287 42 is be VBZ 33899 287 43 laid lay VBN 33899 287 44 on on RP 33899 287 45 ; ; : 33899 287 46 or or CC 33899 287 47 , , , 33899 287 48 failing fail VBG 33899 287 49 this this DT 33899 287 50 , , , 33899 287 51 acetylene acetylene NN 33899 287 52 or or CC 33899 287 53 ether ether NN 33899 287 54 , , , 33899 287 55 or or CC 33899 287 56 even even RB 33899 287 57 methylated methylate VBN 33899 287 58 spirit spirit NN 33899 287 59 may may MD 33899 287 60 be be VB 33899 287 61 utilised utilise VBN 33899 287 62 instead instead RB 33899 287 63 . . . 33899 288 1 The the DT 33899 288 2 bags bag NNS 33899 288 3 in in IN 33899 288 4 use use NN 33899 288 5 are be VBP 33899 288 6 placed place VBN 33899 288 7 between between IN 33899 288 8 double double JJ 33899 288 9 pressure pressure NN 33899 288 10 boards board NNS 33899 288 11 ( ( -LRB- 33899 288 12 if if IN 33899 288 13 _ _ NNP 33899 288 14 both both DT 33899 288 15 _ _ NNP 33899 288 16 gases gas NNS 33899 288 17 are be VBP 33899 288 18 required require VBN 33899 288 19 under under IN 33899 288 20 pressure pressure NN 33899 288 21 ) ) -RRB- 33899 288 22 and and CC 33899 288 23 weights weight NNS 33899 288 24 sufficiently sufficiently RB 33899 288 25 heavy heavy JJ 33899 288 26 placed place VBN 33899 288 27 on on IN 33899 288 28 the the DT 33899 288 29 top top NN 33899 288 30 ( ( -LRB- 33899 288 31 Fig fig NN 33899 288 32 . . . 33899 289 1 14 14 CD 33899 289 2 ) ) -RRB- 33899 289 3 , , , 33899 289 4 or or CC 33899 289 5 with with IN 33899 289 6 a a DT 33899 289 7 ' ' `` 33899 289 8 blow blow NN 33899 289 9 - - HYPH 33899 289 10 through through IN 33899 289 11 ' ' '' 33899 289 12 jet jet NN 33899 289 13 only only RB 33899 289 14 the the DT 33899 289 15 oxygen oxygen NN 33899 289 16 need nee MD 33899 289 17 be be VB 33899 289 18 stored store VBN 33899 289 19 in in IN 33899 289 20 a a DT 33899 289 21 bag bag NN 33899 289 22 and and CC 33899 289 23 the the DT 33899 289 24 coal coal NN 33899 289 25 gas gas NN 33899 289 26 used use VBN 33899 289 27 from from IN 33899 289 28 the the DT 33899 289 29 supply supply NN 33899 289 30 main main JJ 33899 289 31 . . . 33899 290 1 Cylinders cylinder NNS 33899 290 2 have have VBP 33899 290 3 , , , 33899 290 4 however however RB 33899 290 5 , , , 33899 290 6 so so RB 33899 290 7 universally universally RB 33899 290 8 superseded supersede VBD 33899 290 9 these these DT 33899 290 10 appliances appliance NNS 33899 290 11 , , , 33899 290 12 that that DT 33899 290 13 space space NN 33899 290 14 is be VBZ 33899 290 15 hardly hardly RB 33899 290 16 warranted warrant VBN 33899 290 17 in in IN 33899 290 18 fully fully RB 33899 290 19 describing describe VBG 33899 290 20 them -PRON- PRP 33899 290 21 , , , 33899 290 22 especially especially RB 33899 290 23 as as IN 33899 290 24 any any DT 33899 290 25 operator operator NN 33899 290 26 wishing wish VBG 33899 290 27 to to TO 33899 290 28 adopt adopt VB 33899 290 29 { { -LRB- 33899 290 30 24 24 CD 33899 290 31 } } -RRB- 33899 290 32 the the DT 33899 290 33 process process NN 33899 290 34 can can MD 33899 290 35 obtain obtain VB 33899 290 36 full full JJ 33899 290 37 directions direction NNS 33899 290 38 from from IN 33899 290 39 any any DT 33899 290 40 responsible responsible JJ 33899 290 41 dealer dealer NN 33899 290 42 . . . 33899 291 1 LIMELIGHT LIMELIGHT NNP 33899 291 2 JETS.--These JETS.--These NNP 33899 291 3 are be VBP 33899 291 4 of of IN 33899 291 5 three three CD 33899 291 6 general general JJ 33899 291 7 types type NNS 33899 291 8 , , , 33899 291 9 viz viz NN 33899 291 10 . . . 33899 292 1 the the DT 33899 292 2 ' ' `` 33899 292 3 Blow blow NN 33899 292 4 - - HYPH 33899 292 5 through through NN 33899 292 6 , , , 33899 292 7 ' ' '' 33899 292 8 the the DT 33899 292 9 ' ' `` 33899 292 10 Mixed mixed JJ 33899 292 11 , , , 33899 292 12 ' ' '' 33899 292 13 and and CC 33899 292 14 the the DT 33899 292 15 ' ' `` 33899 292 16 Injector injector NN 33899 292 17 . . . 33899 292 18 ' ' '' 33899 293 1 Of of IN 33899 293 2 these these DT 33899 293 3 the the DT 33899 293 4 ' ' `` 33899 293 5 Blow blow NN 33899 293 6 - - HYPH 33899 293 7 through through NN 33899 293 8 ' ' '' 33899 293 9 is be VBZ 33899 293 10 now now RB 33899 293 11 very very RB 33899 293 12 little little RB 33899 293 13 made make VBN 33899 293 14 , , , 33899 293 15 having have VBG 33899 293 16 been be VBN 33899 293 17 largely largely RB 33899 293 18 superseded supersede VBN 33899 293 19 by by IN 33899 293 20 the the DT 33899 293 21 ' ' `` 33899 293 22 Injector injector NN 33899 293 23 ' ' '' 33899 293 24 pattern pattern NN 33899 293 25 , , , 33899 293 26 but but CC 33899 293 27 , , , 33899 293 28 as as IN 33899 293 29 there there EX 33899 293 30 are be VBP 33899 293 31 hundreds hundred NNS 33899 293 32 in in IN 33899 293 33 common common JJ 33899 293 34 use use NN 33899 293 35 in in IN 33899 293 36 this this DT 33899 293 37 country country NN 33899 293 38 , , , 33899 293 39 they -PRON- PRP 33899 293 40 can can MD 33899 293 41 not not RB 33899 293 42 yet yet RB 33899 293 43 be be VB 33899 293 44 regarded regard VBN 33899 293 45 as as IN 33899 293 46 a a DT 33899 293 47 thing thing NN 33899 293 48 of of IN 33899 293 49 the the DT 33899 293 50 past past NN 33899 293 51 . . . 33899 294 1 [ [ -LRB- 33899 294 2 Illustration illustration NN 33899 294 3 : : : 33899 294 4 FIG FIG NNP 33899 294 5 . . . 33899 295 1 14.--Gas 14.--gas CD 33899 295 2 - - HYPH 33899 295 3 bags bag NNS 33899 295 4 . . . 33899 295 5 ] ] -RRB- 33899 296 1 The the DT 33899 296 2 exact exact JJ 33899 296 3 design design NN 33899 296 4 of of IN 33899 296 5 this this DT 33899 296 6 jet jet NN 33899 296 7 varies vary VBZ 33899 296 8 considerably considerably RB 33899 296 9 , , , 33899 296 10 but but CC 33899 296 11 all all DT 33899 296 12 are be VBP 33899 296 13 alike alike JJ 33899 296 14 in in IN 33899 296 15 this this DT 33899 296 16 , , , 33899 296 17 that that IN 33899 296 18 a a DT 33899 296 19 jet jet NN 33899 296 20 of of IN 33899 296 21 coal coal NN 33899 296 22 gas gas NN 33899 296 23 is be VBZ 33899 296 24 burned burn VBN 33899 296 25 at at IN 33899 296 26 the the DT 33899 296 27 orifice orifice NN 33899 296 28 of of IN 33899 296 29 a a DT 33899 296 30 more more RBR 33899 296 31 or or CC 33899 296 32 less less RBR 33899 296 33 open open JJ 33899 296 34 nozzle nozzle NN 33899 296 35 , , , 33899 296 36 and and CC 33899 296 37 a a DT 33899 296 38 stream stream NN 33899 296 39 of of IN 33899 296 40 oxygen oxygen NN 33899 296 41 _ _ NNP 33899 296 42 blown blow VBN 33899 296 43 _ _ NNP 33899 296 44 _ _ NNP 33899 296 45 through through IN 33899 296 46 _ _ NNP 33899 296 47 it -PRON- PRP 33899 296 48 on on RP 33899 296 49 to to IN 33899 296 50 a a DT 33899 296 51 cylinder cylinder NN 33899 296 52 of of IN 33899 296 53 lime lime NN 33899 296 54 which which WDT 33899 296 55 it -PRON- PRP 33899 296 56 thereby thereby RB 33899 296 57 renders render VBZ 33899 296 58 incandescent incandescent NN 33899 296 59 . . . 33899 297 1 Fig fig NN 33899 297 2 . . . 33899 298 1 15 15 CD 33899 298 2 represents represent VBZ 33899 298 3 the the DT 33899 298 4 various various JJ 33899 298 5 designs design NNS 33899 298 6 chiefly chiefly RB 33899 298 7 adopted adopt VBN 33899 298 8 for for IN 33899 298 9 this this DT 33899 298 10 jet jet NN 33899 298 11 , , , 33899 298 12 that that WDT 33899 298 13 marked mark VBD 33899 298 14 A a DT 33899 298 15 being be VBG 33899 298 16 perhaps perhaps RB 33899 298 17 the the DT 33899 298 18 most most RBS 33899 298 19 usual usual JJ 33899 298 20 , , , 33899 298 21 though though IN 33899 298 22 C C NNP 33899 298 23 is be VBZ 33899 298 24 also also RB 33899 298 25 frequently frequently RB 33899 298 26 met meet VBN 33899 298 27 with with IN 33899 298 28 . . . 33899 299 1 In in IN 33899 299 2 light light RB 33899 299 3 - - HYPH 33899 299 4 giving give VBG 33899 299 5 power power NN 33899 299 6 there there EX 33899 299 7 is be VBZ 33899 299 8 not not RB 33899 299 9 much much JJ 33899 299 10 to to TO 33899 299 11 choose choose VB 33899 299 12 between between IN 33899 299 13 the the DT 33899 299 14 various various JJ 33899 299 15 types type NNS 33899 299 16 ; ; : 33899 299 17 probably probably RB 33899 299 18 D d NN 33899 299 19 on on IN 33899 299 20 the the DT 33899 299 21 whole whole NN 33899 299 22 is be VBZ 33899 299 23 the the DT 33899 299 24 best good JJS 33899 299 25 in in IN 33899 299 26 this this DT 33899 299 27 respect respect NN 33899 299 28 , , , 33899 299 29 but but CC 33899 299 30 so so RB 33899 299 31 much much JJ 33899 299 32 depends depend VBZ 33899 299 33 upon upon IN 33899 299 34 the the DT 33899 299 35 exact exact JJ 33899 299 36 position position NN 33899 299 37 of of IN 33899 299 38 the the DT 33899 299 39 two two CD 33899 299 40 nozzles nozzle NNS 33899 299 41 , , , 33899 299 42 and and CC 33899 299 43 the the DT 33899 299 44 _ _ NNP 33899 299 45 smoothness smoothness JJ 33899 299 46 _ _ NNP 33899 299 47 or or CC 33899 299 48 otherwise otherwise RB 33899 299 49 of of IN 33899 299 50 that that DT 33899 299 51 { { -LRB- 33899 299 52 25 25 CD 33899 299 53 } } -RRB- 33899 299 54 provided provide VBN 33899 299 55 for for IN 33899 299 56 the the DT 33899 299 57 oxygen oxygen NN 33899 299 58 blast blast NN 33899 299 59 , , , 33899 299 60 that that DT 33899 299 61 exact exact JJ 33899 299 62 comparisons comparison NNS 33899 299 63 are be VBP 33899 299 64 difficult difficult JJ 33899 299 65 . . . 33899 300 1 [ [ -LRB- 33899 300 2 Illustration illustration NN 33899 300 3 : : : 33899 300 4 FIG FIG NNP 33899 300 5 . . . 33899 301 1 15.--'Blow 15.--'blow LS 33899 301 2 - - HYPH 33899 301 3 through through RP 33899 301 4 ' ' '' 33899 301 5 Nozzles Nozzles NNP 33899 301 6 . . . 33899 301 7 ] ] -RRB- 33899 302 1 ' ' `` 33899 302 2 Blow blow NN 33899 302 3 - - HYPH 33899 302 4 through through IN 33899 302 5 ' ' '' 33899 302 6 jets jet NNS 33899 302 7 are be VBP 33899 302 8 the the DT 33899 302 9 weakest weak JJS 33899 302 10 form form NN 33899 302 11 of of IN 33899 302 12 limelight limelight NN 33899 302 13 as as IN 33899 302 14 used use VBN 33899 302 15 at at IN 33899 302 16 the the DT 33899 302 17 present present JJ 33899 302 18 day day NN 33899 302 19 , , , 33899 302 20 and and CC 33899 302 21 may may MD 33899 302 22 be be VB 33899 302 23 taken take VBN 33899 302 24 roughly roughly RB 33899 302 25 as as IN 33899 302 26 some some RB 33899 302 27 50 50 CD 33899 302 28 per per NN 33899 302 29 cent cent NN 33899 302 30 . . . 33899 303 1 better well RBR 33899 303 2 than than IN 33899 303 3 acetylene acetylene NN 33899 303 4 , , , 33899 303 5 or or CC 33899 303 6 in in IN 33899 303 7 other other JJ 33899 303 8 words word NNS 33899 303 9 , , , 33899 303 10 sufficient sufficient JJ 33899 303 11 to to TO 33899 303 12 illuminate illuminate VB 33899 303 13 a a DT 33899 303 14 12-foot 12-foot CD 33899 303 15 picture picture NN 33899 303 16 at at IN 33899 303 17 a a DT 33899 303 18 distance distance NN 33899 303 19 of of IN 33899 303 20 some some RB 33899 303 21 40 40 CD 33899 303 22 to to TO 33899 303 23 50 50 CD 33899 303 24 feet foot NNS 33899 303 25 ; ; : 33899 303 26 but but CC 33899 303 27 their -PRON- PRP$ 33899 303 28 advantage advantage NN 33899 303 29 is be VBZ 33899 303 30 , , , 33899 303 31 or or CC 33899 303 32 was be VBD 33899 303 33 , , , 33899 303 34 that that IN 33899 303 35 they -PRON- PRP 33899 303 36 only only RB 33899 303 37 required require VBD 33899 303 38 one one CD 33899 303 39 gas gas NN 33899 303 40 ( ( -LRB- 33899 303 41 oxygen oxygen NN 33899 303 42 ) ) -RRB- 33899 303 43 under under IN 33899 303 44 pressure pressure NN 33899 303 45 , , , 33899 303 46 the the DT 33899 303 47 coal coal NN 33899 303 48 gas gas NN 33899 303 49 supply supply NN 33899 303 50 being be VBG 33899 303 51 obtained obtain VBN 33899 303 52 from from IN 33899 303 53 the the DT 33899 303 54 ordinary ordinary JJ 33899 303 55 house house NNP 33899 303 56 main main NNP 33899 303 57 . . . 33899 304 1 [ [ -LRB- 33899 304 2 Illustration illustration NN 33899 304 3 : : : 33899 304 4 FIG FIG NNP 33899 304 5 . . . 33899 305 1 16.--'Blow 16.--'blow LS 33899 305 2 - - : 33899 305 3 through through RP 33899 305 4 ' ' '' 33899 305 5 Jet Jet NNP 33899 305 6 . . . 33899 305 7 ] ] -RRB- 33899 306 1 This this DT 33899 306 2 advantage advantage NN 33899 306 3 is be VBZ 33899 306 4 now now RB 33899 306 5 shared share VBN 33899 306 6 by by IN 33899 306 7 the the DT 33899 306 8 more more RBR 33899 306 9 recently recently RB 33899 306 10 introduced introduce VBN 33899 306 11 ' ' '' 33899 306 12 Injector injector NN 33899 306 13 ' ' '' 33899 306 14 jets jet NNS 33899 306 15 , , , 33899 306 16 which which WDT 33899 306 17 give give VBP 33899 306 18 a a DT 33899 306 19 far far RB 33899 306 20 better well JJR 33899 306 21 light light NN 33899 306 22 , , , 33899 306 23 and and CC 33899 306 24 have have VBP 33899 306 25 therefore therefore RB 33899 306 26 rendered render VBN 33899 306 27 the the DT 33899 306 28 ' ' `` 33899 306 29 Blow blow NN 33899 306 30 - - HYPH 33899 306 31 through through IN 33899 306 32 ' ' '' 33899 306 33 type type NN 33899 306 34 nearly nearly RB 33899 306 35 extinct extinct JJ 33899 306 36 . . . 33899 307 1 The the DT 33899 307 2 general general JJ 33899 307 3 construction construction NN 33899 307 4 of of IN 33899 307 5 a a DT 33899 307 6 ' ' `` 33899 307 7 Blow blow NN 33899 307 8 - - HYPH 33899 307 9 through through NN 33899 307 10 ' ' '' 33899 307 11 jet jet NN 33899 307 12 is be VBZ 33899 307 13 shown show VBN 33899 307 14 in in IN 33899 307 15 Fig Fig NNP 33899 307 16 . . . 33899 308 1 16 16 CD 33899 308 2 , , , 33899 308 3 and and CC 33899 308 4 it -PRON- PRP 33899 308 5 will will MD 33899 308 6 be be VB 33899 308 7 seen see VBN 33899 308 8 that that IN 33899 308 9 a a DT 33899 308 10 short short JJ 33899 308 11 vertical vertical JJ 33899 308 12 spindle spindle NN 33899 308 13 is be VBZ 33899 308 14 { { -LRB- 33899 308 15 26 26 CD 33899 308 16 } } -RRB- 33899 308 17 provided provide VBN 33899 308 18 to to TO 33899 308 19 carry carry VB 33899 308 20 the the DT 33899 308 21 lime lime NN 33899 308 22 cylinder cylinder NN 33899 308 23 , , , 33899 308 24 and and CC 33899 308 25 that that IN 33899 308 26 this this DT 33899 308 27 can can MD 33899 308 28 be be VB 33899 308 29 rotated rotate VBN 33899 308 30 from from IN 33899 308 31 the the DT 33899 308 32 back back NN 33899 308 33 by by IN 33899 308 34 means mean NNS 33899 308 35 of of IN 33899 308 36 bevelled bevelled JJ 33899 308 37 gear gear NN 33899 308 38 wheels wheel NNS 33899 308 39 , , , 33899 308 40 which which WDT 33899 308 41 at at IN 33899 308 42 the the DT 33899 308 43 same same JJ 33899 308 44 time time NN 33899 308 45 screw screw VBD 33899 308 46 the the DT 33899 308 47 spindle spindle NN 33899 308 48 up up RB 33899 308 49 and and CC 33899 308 50 down down RB 33899 308 51 . . . 33899 309 1 A a DT 33899 309 2 lime lime NN 33899 309 3 cylinder cylinder NN 33899 309 4 of of IN 33899 309 5 the the DT 33899 309 6 usual usual JJ 33899 309 7 pattern pattern NN 33899 309 8 being be VBG 33899 309 9 placed place VBN 33899 309 10 on on IN 33899 309 11 this this DT 33899 309 12 spindle spindle NN 33899 309 13 can can MD 33899 309 14 be be VB 33899 309 15 rotated rotate VBN 33899 309 16 from from IN 33899 309 17 time time NN 33899 309 18 to to IN 33899 309 19 time time NN 33899 309 20 to to TO 33899 309 21 expose expose VB 33899 309 22 a a DT 33899 309 23 fresh fresh JJ 33899 309 24 surface surface NN 33899 309 25 , , , 33899 309 26 as as IN 33899 309 27 that that DT 33899 309 28 in in IN 33899 309 29 use use NN 33899 309 30 gradually gradually RB 33899 309 31 becomes become VBZ 33899 309 32 ' ' `` 33899 309 33 pitted pit VBN 33899 309 34 ' ' '' 33899 309 35 by by IN 33899 309 36 the the DT 33899 309 37 blast blast NN 33899 309 38 , , , 33899 309 39 while while IN 33899 309 40 the the DT 33899 309 41 screw screw NN 33899 309 42 provides provide VBZ 33899 309 43 sufficient sufficient JJ 33899 309 44 vertical vertical JJ 33899 309 45 movement movement NN 33899 309 46 to to TO 33899 309 47 ensure ensure VB 33899 309 48 that that IN 33899 309 49 a a DT 33899 309 50 complete complete JJ 33899 309 51 rotation rotation NN 33899 309 52 does do VBZ 33899 309 53 not not RB 33899 309 54 bring bring VB 33899 309 55 round round RB 33899 309 56 the the DT 33899 309 57 same same JJ 33899 309 58 position position NN 33899 309 59 again again RB 33899 309 60 . . . 33899 310 1 Some some DT 33899 310 2 arrangement arrangement NN 33899 310 3 is be VBZ 33899 310 4 also also RB 33899 310 5 generally generally RB 33899 310 6 provided provide VBN 33899 310 7 by by IN 33899 310 8 which which WDT 33899 310 9 the the DT 33899 310 10 distance distance NN 33899 310 11 between between IN 33899 310 12 the the DT 33899 310 13 lime lime NN 33899 310 14 spindle spindle NN 33899 310 15 and and CC 33899 310 16 the the DT 33899 310 17 jet jet NN 33899 310 18 can can MD 33899 310 19 be be VB 33899 310 20 adjusted adjust VBN 33899 310 21 . . . 33899 311 1 The the DT 33899 311 2 exact exact JJ 33899 311 3 position position NN 33899 311 4 of of IN 33899 311 5 this this DT 33899 311 6 does do VBZ 33899 311 7 not not RB 33899 311 8 matter matter VB 33899 311 9 within within IN 33899 311 10 a a DT 33899 311 11 reasonable reasonable JJ 33899 311 12 margin margin NN 33899 311 13 , , , 33899 311 14 but but CC 33899 311 15 limes lime NNS 33899 311 16 vary vary VBP 33899 311 17 in in IN 33899 311 18 size size NN 33899 311 19 , , , 33899 311 20 and and CC 33899 311 21 ' ' `` 33899 311 22 Pastilles pastille NNS 33899 311 23 , , , 33899 311 24 ' ' '' 33899 311 25 and and CC 33899 311 26 other other JJ 33899 311 27 substitutes substitute NNS 33899 311 28 for for IN 33899 311 29 limes lime NNS 33899 311 30 , , , 33899 311 31 which which WDT 33899 311 32 will will MD 33899 311 33 be be VB 33899 311 34 referred refer VBN 33899 311 35 to to IN 33899 311 36 later later RBR 33899 311 37 , , , 33899 311 38 vary vary VBP 33899 311 39 still still RB 33899 311 40 more more RBR 33899 311 41 , , , 33899 311 42 at at IN 33899 311 43 any any DT 33899 311 44 rate rate NN 33899 311 45 as as IN 33899 311 46 regards regard VBZ 33899 311 47 this this DT 33899 311 48 adjustment adjustment NN 33899 311 49 . . . 33899 312 1 The the DT 33899 312 2 average average JJ 33899 312 3 distance distance NN 33899 312 4 which which WDT 33899 312 5 gives give VBZ 33899 312 6 the the DT 33899 312 7 best good JJS 33899 312 8 result result NN 33899 312 9 is be VBZ 33899 312 10 usually usually RB 33899 312 11 about about IN 33899 312 12 half half PDT 33899 312 13 an an DT 33899 312 14 inch inch NN 33899 312 15 , , , 33899 312 16 and and CC 33899 312 17 once once RB 33899 312 18 set set VBN 33899 312 19 need need VBP 33899 312 20 not not RB 33899 312 21 be be VB 33899 312 22 altered alter VBN 33899 312 23 with with IN 33899 312 24 that that DT 33899 312 25 particular particular JJ 33899 312 26 jet jet NN 33899 312 27 unless unless IN 33899 312 28 a a DT 33899 312 29 lime lime NN 33899 312 30 of of IN 33899 312 31 different different JJ 33899 312 32 size size NN 33899 312 33 is be VBZ 33899 312 34 employed employ VBN 33899 312 35 ; ; : 33899 312 36 minor minor JJ 33899 312 37 variations variation NNS 33899 312 38 due due JJ 33899 312 39 to to IN 33899 312 40 limes lime NNS 33899 312 41 being be VBG 33899 312 42 drilled drill VBN 33899 312 43 slightly slightly RB 33899 312 44 out out IN 33899 312 45 of of IN 33899 312 46 centre centre NN 33899 312 47 , , , 33899 312 48 & & CC 33899 312 49 c. c. NNP 33899 312 50 , , , 33899 312 51 do do VBP 33899 312 52 not not RB 33899 312 53 seriously seriously RB 33899 312 54 matter matter VB 33899 312 55 . . . 33899 313 1 There there EX 33899 313 2 is be VBZ 33899 313 3 no no DT 33899 313 4 accepted accepted JJ 33899 313 5 rule rule NN 33899 313 6 for for IN 33899 313 7 colouring colour VBG 33899 313 8 jet jet NN 33899 313 9 - - HYPH 33899 313 10 taps tap NNS 33899 313 11 in in IN 33899 313 12 accordance accordance NN 33899 313 13 with with IN 33899 313 14 the the DT 33899 313 15 cylinders cylinder NNS 33899 313 16 , , , 33899 313 17 and and CC 33899 313 18 although although IN 33899 313 19 jets jet NNS 33899 313 20 are be VBP 33899 313 21 sometimes sometimes RB 33899 313 22 met meet VBN 33899 313 23 with with IN 33899 313 24 painted paint VBN 33899 313 25 in in IN 33899 313 26 this this DT 33899 313 27 way way NN 33899 313 28 , , , 33899 313 29 _ _ NNP 33899 313 30 i.e. i.e. FW 33899 313 31 _ _ NNP 33899 313 32 red red NN 33899 313 33 for for IN 33899 313 34 coal coal NN 33899 313 35 gas gas NN 33899 313 36 and and CC 33899 313 37 black black NN 33899 313 38 for for IN 33899 313 39 oxygen oxygen NN 33899 313 40 , , , 33899 313 41 it -PRON- PRP 33899 313 42 is be VBZ 33899 313 43 more more RBR 33899 313 44 usual usual JJ 33899 313 45 to to TO 33899 313 46 find find VB 33899 313 47 coal coal NN 33899 313 48 gas gas NN 33899 313 49 taps tap NNS 33899 313 50 _ _ NNP 33899 313 51 black black JJ 33899 313 52 _ _ NNP 33899 313 53 and and CC 33899 313 54 oxygen oxygen NN 33899 313 55 _ _ NNP 33899 313 56 bright bright JJ 33899 313 57 _ _ NNP 33899 313 58 , , , 33899 313 59 or or CC 33899 313 60 sometimes sometimes RB 33899 313 61 both both DT 33899 313 62 black black JJ 33899 313 63 or or CC 33899 313 64 both both CC 33899 313 65 bright bright JJ 33899 313 66 . . . 33899 314 1 Care care NN 33899 314 2 must must MD 33899 314 3 therefore therefore RB 33899 314 4 be be VB 33899 314 5 taken take VBN 33899 314 6 that that IN 33899 314 7 the the DT 33899 314 8 right right JJ 33899 314 9 cylinder cylinder NN 33899 314 10 is be VBZ 33899 314 11 connected connect VBN 33899 314 12 to to IN 33899 314 13 the the DT 33899 314 14 right right JJ 33899 314 15 tap tap NN 33899 314 16 on on IN 33899 314 17 the the DT 33899 314 18 jet jet NN 33899 314 19 , , , 33899 314 20 but but CC 33899 314 21 there there EX 33899 314 22 should should MD 33899 314 23 be be VB 33899 314 24 no no DT 33899 314 25 difficulty difficulty NN 33899 314 26 in in IN 33899 314 27 telling telling NN 33899 314 28 which which WDT 33899 314 29 is be VBZ 33899 314 30 which which WDT 33899 314 31 , , , 33899 314 32 and and CC 33899 314 33 fortunately fortunately RB 33899 314 34 any any DT 33899 314 35 mistake mistake NN 33899 314 36 , , , 33899 314 37 even even RB 33899 314 38 if if IN 33899 314 39 it -PRON- PRP 33899 314 40 be be VB 33899 314 41 made make VBN 33899 314 42 , , , 33899 314 43 is be VBZ 33899 314 44 quite quite RB 33899 314 45 harmless harmless JJ 33899 314 46 . . . 33899 315 1 THE the DT 33899 315 2 MIXED MIXED NNP 33899 315 3 - - HYPH 33899 315 4 GAS GAS NNP 33899 315 5 OR or CC 33899 315 6 DOUBLE DOUBLE NNP 33899 315 7 - - HYPH 33899 315 8 PRESSURE PRESSURE NNP 33899 315 9 JET.--This JET.--This NNP 33899 315 10 jet jet NN 33899 315 11 is be VBZ 33899 315 12 fundamentally fundamentally RB 33899 315 13 different different JJ 33899 315 14 from from IN 33899 315 15 the the DT 33899 315 16 ' ' `` 33899 315 17 blow blow NN 33899 315 18 - - HYPH 33899 315 19 through through IN 33899 315 20 ' ' '' 33899 315 21 form form NN 33899 315 22 , , , 33899 315 23 inasmuch inasmuch JJ 33899 315 24 as as IN 33899 315 25 the the DT 33899 315 26 two two CD 33899 315 27 gases gas NNS 33899 315 28 are be VBP 33899 315 29 combined combine VBN 33899 315 30 in in IN 33899 315 31 one one CD 33899 315 32 mixing mix VBG 33899 315 33 chamber chamber NN 33899 315 34 before before IN 33899 315 35 combustion combustion NN 33899 315 36 , , , 33899 315 37 and and CC 33899 315 38 burn burn VB 33899 315 39 in in RP 33899 315 40 their -PRON- PRP$ 33899 315 41 correct correct JJ 33899 315 42 proportions proportion NNS 33899 315 43 at at IN 33899 315 44 one one CD 33899 315 45 nipple nipple NN 33899 315 46 . . . 33899 316 1 It -PRON- PRP 33899 316 2 is be VBZ 33899 316 3 usually usually RB 33899 316 4 stated state VBN 33899 316 5 that that IN 33899 316 6 this this DT 33899 316 7 jet jet NN 33899 316 8 necessitates necessitate VBZ 33899 316 9 both both DT 33899 316 10 gases gas NNS 33899 316 11 being be VBG 33899 316 12 under under IN 33899 316 13 equal equal JJ 33899 316 14 or or CC 33899 316 15 approximately approximately RB 33899 316 16 equal equal JJ 33899 316 17 pressure pressure NN 33899 316 18 , , , 33899 316 19 but but CC 33899 316 20 this this DT 33899 316 21 { { -LRB- 33899 316 22 27 27 CD 33899 316 23 } } -RRB- 33899 316 24 is be VBZ 33899 316 25 not not RB 33899 316 26 literally literally RB 33899 316 27 accurate accurate JJ 33899 316 28 , , , 33899 316 29 and and CC 33899 316 30 I -PRON- PRP 33899 316 31 have have VBP 33899 316 32 given give VBN 33899 316 33 many many PDT 33899 316 34 a a DT 33899 316 35 lantern lantern JJ 33899 316 36 exhibition exhibition NN 33899 316 37 with with IN 33899 316 38 one one CD 33899 316 39 of of IN 33899 316 40 these these DT 33899 316 41 jets jet NNS 33899 316 42 , , , 33899 316 43 using use VBG 33899 316 44 coal coal NN 33899 316 45 gas gas NN 33899 316 46 from from IN 33899 316 47 the the DT 33899 316 48 ordinary ordinary JJ 33899 316 49 supply supply NN 33899 316 50 , , , 33899 316 51 and and CC 33899 316 52 oxygen oxygen NN 33899 316 53 from from IN 33899 316 54 a a DT 33899 316 55 cylinder cylinder NN 33899 316 56 . . . 33899 317 1 To to TO 33899 317 2 use use VB 33899 317 3 a a DT 33899 317 4 mixed mixed JJ 33899 317 5 jet jet NN 33899 317 6 in in IN 33899 317 7 this this DT 33899 317 8 way way NN 33899 317 9 needs need VBZ 33899 317 10 care care NN 33899 317 11 , , , 33899 317 12 as as IN 33899 317 13 a a DT 33899 317 14 very very RB 33899 317 15 slight slight JJ 33899 317 16 excess excess NN 33899 317 17 of of IN 33899 317 18 oxygen oxygen NN 33899 317 19 puts put VBZ 33899 317 20 the the DT 33899 317 21 light light NN 33899 317 22 out out RP 33899 317 23 with with IN 33899 317 24 a a DT 33899 317 25 ' ' `` 33899 317 26 pop pop NN 33899 317 27 ' ' '' 33899 317 28 which which WDT 33899 317 29 , , , 33899 317 30 although although IN 33899 317 31 not not RB 33899 317 32 dangerous dangerous JJ 33899 317 33 , , , 33899 317 34 is be VBZ 33899 317 35 disconcerting disconcert VBG 33899 317 36 , , , 33899 317 37 while while IN 33899 317 38 the the DT 33899 317 39 light light NN 33899 317 40 obtained obtain VBN 33899 317 41 under under IN 33899 317 42 these these DT 33899 317 43 conditions condition NNS 33899 317 44 is be VBZ 33899 317 45 very very RB 33899 317 46 little little JJ 33899 317 47 better well JJR 33899 317 48 than than IN 33899 317 49 with with IN 33899 317 50 a a DT 33899 317 51 ' ' `` 33899 317 52 blow blow NN 33899 317 53 - - HYPH 33899 317 54 through through IN 33899 317 55 ' ' '' 33899 317 56 jet jet NN 33899 317 57 , , , 33899 317 58 and and CC 33899 317 59 far far RB 33899 317 60 inferior inferior JJ 33899 317 61 to to IN 33899 317 62 the the DT 33899 317 63 ' ' `` 33899 317 64 Injector injector NN 33899 317 65 ' ' POS 33899 317 66 jets jet NNS 33899 317 67 to to TO 33899 317 68 be be VB 33899 317 69 described describe VBN 33899 317 70 next next RB 33899 317 71 . . . 33899 318 1 [ [ -LRB- 33899 318 2 Illustration illustration NN 33899 318 3 : : : 33899 318 4 FIG FIG NNP 33899 318 5 . . . 33899 319 1 17.--Mixed 17.--mixed CD 33899 319 2 Jet Jet NNP 33899 319 3 . . . 33899 319 4 ] ] -RRB- 33899 320 1 [ [ -LRB- 33899 320 2 Illustration illustration NN 33899 320 3 : : : 33899 320 4 FIG FIG NNP 33899 320 5 . . . 33899 321 1 18.--Mixed 18.--mixed CD 33899 321 2 Jet Jet NNP 33899 321 3 , , , 33899 321 4 Gwyer Gwyer NNP 33899 321 5 pattern pattern NN 33899 321 6 . . . 33899 321 7 ] ] -RRB- 33899 322 1 The the DT 33899 322 2 mixed mixed JJ 33899 322 3 - - HYPH 33899 322 4 gas gas NN 33899 322 5 jet jet NN 33899 322 6 is be VBZ 33899 322 7 intended intend VBN 33899 322 8 then then RB 33899 322 9 to to TO 33899 322 10 be be VB 33899 322 11 used use VBN 33899 322 12 with with IN 33899 322 13 both both DT 33899 322 14 gases gas NNS 33899 322 15 under under IN 33899 322 16 pressure pressure NN 33899 322 17 , , , 33899 322 18 and and CC 33899 322 19 is be VBZ 33899 322 20 the the DT 33899 322 21 _ _ NNP 33899 322 22 only only RB 33899 322 23 _ _ NNP 33899 322 24 jet jet NN 33899 322 25 to to TO 33899 322 26 be be VB 33899 322 27 seriously seriously RB 33899 322 28 { { -LRB- 33899 322 29 28 28 CD 33899 322 30 } } -RRB- 33899 322 31 considered consider VBN 33899 322 32 in in IN 33899 322 33 cases case NNS 33899 322 34 where where WRB 33899 322 35 a a DT 33899 322 36 really really RB 33899 322 37 powerful powerful JJ 33899 322 38 light light NN 33899 322 39 is be VBZ 33899 322 40 required require VBN 33899 322 41 . . . 33899 323 1 The the DT 33899 323 2 power power NN 33899 323 3 of of IN 33899 323 4 this this DT 33899 323 5 jet jet NN 33899 323 6 is be VBZ 33899 323 7 indeed indeed RB 33899 323 8 almost almost RB 33899 323 9 unlimited unlimited JJ 33899 323 10 , , , 33899 323 11 and and CC 33899 323 12 those those DT 33899 323 13 made make VBN 33899 323 14 with with IN 33899 323 15 large large JJ 33899 323 16 bores bore NNS 33899 323 17 , , , 33899 323 18 such such JJ 33899 323 19 for for IN 33899 323 20 example example NN 33899 323 21 as as IN 33899 323 22 used use VBN 33899 323 23 for for IN 33899 323 24 cinematograph cinematograph NN 33899 323 25 work work NN 33899 323 26 , , , 33899 323 27 provide provide VB 33899 323 28 a a DT 33899 323 29 light light NN 33899 323 30 amounting amount VBG 33899 323 31 often often RB 33899 323 32 to to IN 33899 323 33 some some DT 33899 323 34 two two CD 33899 323 35 or or CC 33899 323 36 three three CD 33899 323 37 thousand thousand CD 33899 323 38 candles candle NNS 33899 323 39 , , , 33899 323 40 and and CC 33899 323 41 consume consume VB 33899 323 42 an an DT 33899 323 43 enormous enormous JJ 33899 323 44 amount amount NN 33899 323 45 of of IN 33899 323 46 gas gas NN 33899 323 47 ; ; : 33899 323 48 but but CC 33899 323 49 the the DT 33899 323 50 ordinary ordinary JJ 33899 323 51 pattern pattern NN 33899 323 52 , , , 33899 323 53 with with IN 33899 323 54 a a DT 33899 323 55 nipple nipple NN 33899 323 56 of of IN 33899 323 57 one one CD 33899 323 58 - - HYPH 33899 323 59 twentieth twentieth NN 33899 323 60 to to IN 33899 323 61 one one CD 33899 323 62 - - HYPH 33899 323 63 sixteenth sixteenth NN 33899 323 64 of of IN 33899 323 65 an an DT 33899 323 66 inch inch NN 33899 323 67 bore bore NN 33899 323 68 , , , 33899 323 69 and and CC 33899 323 70 using use VBG 33899 323 71 some some DT 33899 323 72 5 5 CD 33899 323 73 feet foot NNS 33899 323 74 of of IN 33899 323 75 each each DT 33899 323 76 gas gas NN 33899 323 77 per per IN 33899 323 78 hour hour NN 33899 323 79 , , , 33899 323 80 or or CC 33899 323 81 perhaps perhaps RB 33899 323 82 slightly slightly RB 33899 323 83 more more JJR 33899 323 84 for for IN 33899 323 85 the the DT 33899 323 86 coal coal NN 33899 323 87 gas gas NN 33899 323 88 , , , 33899 323 89 will will MD 33899 323 90 suffice suffice VB 33899 323 91 for for IN 33899 323 92 all all DT 33899 323 93 ordinary ordinary JJ 33899 323 94 work work NN 33899 323 95 . . . 33899 324 1 [ [ -LRB- 33899 324 2 Illustration illustration NN 33899 324 3 : : : 33899 324 4 FIG FIG NNP 33899 324 5 . . . 33899 325 1 19.--Mixing 19.--mixing CD 33899 325 2 Chamber Chamber NNP 33899 325 3 of of IN 33899 325 4 Jet Jet NNP 33899 325 5 . . . 33899 325 6 ] ] -RRB- 33899 326 1 The the DT 33899 326 2 mixed mixed JJ 33899 326 3 - - HYPH 33899 326 4 gas gas NN 33899 326 5 jet jet NN 33899 326 6 , , , 33899 326 7 like like IN 33899 326 8 the the DT 33899 326 9 ' ' `` 33899 326 10 blow blow NN 33899 326 11 - - HYPH 33899 326 12 through through NN 33899 326 13 , , , 33899 326 14 ' ' '' 33899 326 15 is be VBZ 33899 326 16 made make VBN 33899 326 17 in in IN 33899 326 18 many many JJ 33899 326 19 forms form NNS 33899 326 20 , , , 33899 326 21 but but CC 33899 326 22 these these DT 33899 326 23 may may MD 33899 326 24 be be VB 33899 326 25 roughly roughly RB 33899 326 26 divided divide VBN 33899 326 27 into into IN 33899 326 28 two two CD 33899 326 29 main main JJ 33899 326 30 types type NNS 33899 326 31 , , , 33899 326 32 viz viz NN 33899 326 33 . . . 33899 327 1 those those DT 33899 327 2 with with IN 33899 327 3 small small JJ 33899 327 4 mixing mix VBG 33899 327 5 chambers chamber NNS 33899 327 6 immediately immediately RB 33899 327 7 below below IN 33899 327 8 the the DT 33899 327 9 nipple nipple NN 33899 327 10 ( ( -LRB- 33899 327 11 Fig fig NN 33899 327 12 . . . 33899 328 1 17 17 CD 33899 328 2 ) ) -RRB- 33899 328 3 , , , 33899 328 4 and and CC 33899 328 5 those those DT 33899 328 6 with with IN 33899 328 7 larger large JJR 33899 328 8 chambers chamber NNS 33899 328 9 in in IN 33899 328 10 the the DT 33899 328 11 horizontal horizontal JJ 33899 328 12 part part NN 33899 328 13 of of IN 33899 328 14 the the DT 33899 328 15 jet jet NN 33899 328 16 as as IN 33899 328 17 in in IN 33899 328 18 the the DT 33899 328 19 ' ' `` 33899 328 20 Gwyer Gwyer NNP 33899 328 21 ' ' POS 33899 328 22 pattern pattern NN 33899 328 23 ( ( -LRB- 33899 328 24 Fig fig NN 33899 328 25 . . . 33899 329 1 18 18 CD 33899 329 2 ) ) -RRB- 33899 329 3 . . . 33899 330 1 The the DT 33899 330 2 construction construction NN 33899 330 3 of of IN 33899 330 4 the the DT 33899 330 5 mixing mix VBG 33899 330 6 chamber chamber NN 33899 330 7 itself -PRON- PRP 33899 330 8 varies vary VBZ 33899 330 9 also also RB 33899 330 10 , , , 33899 330 11 but but CC 33899 330 12 that that IN 33899 330 13 advocated advocate VBN 33899 330 14 by by IN 33899 330 15 my -PRON- PRP$ 33899 330 16 father father NN 33899 330 17 , , , 33899 330 18 the the DT 33899 330 19 original original JJ 33899 330 20 author author NN 33899 330 21 of of IN 33899 330 22 this this DT 33899 330 23 work work NN 33899 330 24 , , , 33899 330 25 is be VBZ 33899 330 26 generally generally RB 33899 330 27 followed follow VBN 33899 330 28 , , , 33899 330 29 the the DT 33899 330 30 chamber chamber NN 33899 330 31 being be VBG 33899 330 32 packed pack VBN 33899 330 33 with with IN 33899 330 34 alternate alternate JJ 33899 330 35 discs disc NNS 33899 330 36 pierced pierce VBN 33899 330 37 as as IN 33899 330 38 in in IN 33899 330 39 Fig Fig NNP 33899 330 40 . . . 33899 331 1 19 19 CD 33899 331 2 , , , 33899 331 3 which which WDT 33899 331 4 ensures ensure VBZ 33899 331 5 a a DT 33899 331 6 thorough thorough JJ 33899 331 7 mixture mixture NN 33899 331 8 of of IN 33899 331 9 the the DT 33899 331 10 gases gas NNS 33899 331 11 . . . 33899 332 1 A a DT 33899 332 2 layer layer NN 33899 332 3 or or CC 33899 332 4 two two CD 33899 332 5 of of IN 33899 332 6 gauze gauze NN 33899 332 7 is be VBZ 33899 332 8 often often RB 33899 332 9 introduced introduce VBN 33899 332 10 as as RB 33899 332 11 well well RB 33899 332 12 by by IN 33899 332 13 way way NN 33899 332 14 of of IN 33899 332 15 further further JJ 33899 332 16 improvement improvement NN 33899 332 17 . . . 33899 333 1 The the DT 33899 333 2 distance distance NN 33899 333 3 between between IN 33899 333 4 the the DT 33899 333 5 lime lime NN 33899 333 6 and and CC 33899 333 7 nipple nipple NN 33899 333 8 is be VBZ 33899 333 9 much much RB 33899 333 10 less less JJR 33899 333 11 than than IN 33899 333 12 with with IN 33899 333 13 the the DT 33899 333 14 ' ' `` 33899 333 15 blow blow NN 33899 333 16 - - HYPH 33899 333 17 through through IN 33899 333 18 ' ' '' 33899 333 19 jet jet NN 33899 333 20 , , , 33899 333 21 and and CC 33899 333 22 the the DT 33899 333 23 adjustment adjustment NN 33899 333 24 has have VBZ 33899 333 25 to to TO 33899 333 26 be be VB 33899 333 27 more more RBR 33899 333 28 exactly exactly RB 33899 333 29 made make VBN 33899 333 30 . . . 33899 334 1 About about RB 33899 334 2 1/8 1/8 CD 33899 334 3 inch inch NN 33899 334 4 is be VBZ 33899 334 5 approximately approximately RB 33899 334 6 correct correct JJ 33899 334 7 for for IN 33899 334 8 a a DT 33899 334 9 jet jet NN 33899 334 10 of of IN 33899 334 11 moderate moderate JJ 33899 334 12 power power NN 33899 334 13 , , , 33899 334 14 and and CC 33899 334 15 rather rather RB 33899 334 16 more more JJR 33899 334 17 for for IN 33899 334 18 a a DT 33899 334 19 bigger big JJR 33899 334 20 bore bore NN 33899 334 21 ; ; : 33899 334 22 also also RB 33899 334 23 care care NN 33899 334 24 must must MD 33899 334 25 be be VB 33899 334 26 taken take VBN 33899 334 27 to to TO 33899 334 28 turn turn VB 33899 334 29 the the DT 33899 334 30 lime lime NN 33899 334 31 frequently frequently RB 33899 334 32 , , , 33899 334 33 as as IN 33899 334 34 the the DT 33899 334 35 latter latter JJ 33899 334 36 ' ' `` 33899 334 37 pits pit NNS 33899 334 38 ' ' '' 33899 334 39 pretty pretty RB 33899 334 40 quickly quickly RB 33899 334 41 with with IN 33899 334 42 these these DT 33899 334 43 jets jet NNS 33899 334 44 , , , 33899 334 45 and and CC 33899 334 46 if if IN 33899 334 47 it -PRON- PRP 33899 334 48 is be VBZ 33899 334 49 neglected neglect VBN 33899 334 50 the the DT 33899 334 51 jet jet NN 33899 334 52 may may MD 33899 334 53 spurt spurt VB 33899 334 54 back back RB 33899 334 55 out out IN 33899 334 56 of of IN 33899 334 57 the the DT 33899 334 58 hole hole NN 33899 334 59 , , , 33899 334 60 which which WDT 33899 334 61 is be VBZ 33899 334 62 gradually gradually RB 33899 334 63 formed form VBN 33899 334 64 , , , 33899 334 65 and and CC 33899 334 66 crack crack VB 33899 334 67 the the DT 33899 334 68 condenser condenser NN 33899 334 69 . . . 33899 335 1 { { -LRB- 33899 335 2 29 29 CD 33899 335 3 } } -RRB- 33899 335 4 There there EX 33899 335 5 is be VBZ 33899 335 6 still still RB 33899 335 7 an an DT 33899 335 8 erroneous erroneous JJ 33899 335 9 opinion opinion NN 33899 335 10 extant extant JJ 33899 335 11 that that IN 33899 335 12 these these DT 33899 335 13 jets jet NNS 33899 335 14 are be VBP 33899 335 15 dangerous dangerous JJ 33899 335 16 , , , 33899 335 17 and and CC 33899 335 18 if if IN 33899 335 19 the the DT 33899 335 20 operator operator NN 33899 335 21 is be VBZ 33899 335 22 working work VBG 33899 335 23 with with IN 33899 335 24 the the DT 33899 335 25 now now RB 33899 335 26 obsolete obsolete JJ 33899 335 27 gas gas NN 33899 335 28 - - HYPH 33899 335 29 bags bag NNS 33899 335 30 it -PRON- PRP 33899 335 31 is be VBZ 33899 335 32 certainly certainly RB 33899 335 33 a a DT 33899 335 34 fact fact NN 33899 335 35 that that IN 33899 335 36 an an DT 33899 335 37 accident accident NN 33899 335 38 in in IN 33899 335 39 careless careless JJ 33899 335 40 hands hand NNS 33899 335 41 is be VBZ 33899 335 42 _ _ NNP 33899 335 43 possible possible JJ 33899 335 44 _ _ NN 33899 335 45 ; ; : 33899 335 46 but but CC 33899 335 47 with with IN 33899 335 48 cylinders cylinder NNS 33899 335 49 there there EX 33899 335 50 is be VBZ 33899 335 51 , , , 33899 335 52 so so RB 33899 335 53 far far RB 33899 335 54 as as IN 33899 335 55 I -PRON- PRP 33899 335 56 know know VBP 33899 335 57 , , , 33899 335 58 no no DT 33899 335 59 possibility possibility NN 33899 335 60 even even RB 33899 335 61 of of IN 33899 335 62 an an DT 33899 335 63 accident accident NN 33899 335 64 under under IN 33899 335 65 ordinary ordinary JJ 33899 335 66 conditions condition NNS 33899 335 67 . . . 33899 336 1 It -PRON- PRP 33899 336 2 is be VBZ 33899 336 3 true true JJ 33899 336 4 that that IN 33899 336 5 if if IN 33899 336 6 too too RB 33899 336 7 much much JJ 33899 336 8 oxygen oxygen NN 33899 336 9 is be VBZ 33899 336 10 turned turn VBN 33899 336 11 on on RP 33899 336 12 the the DT 33899 336 13 jet jet NN 33899 336 14 may may MD 33899 336 15 suddenly suddenly RB 33899 336 16 go go VB 33899 336 17 out out RP 33899 336 18 with with IN 33899 336 19 a a DT 33899 336 20 loud loud JJ 33899 336 21 snap snap NN 33899 336 22 or or CC 33899 336 23 pop pop NN 33899 336 24 , , , 33899 336 25 and and CC 33899 336 26 this this DT 33899 336 27 is be VBZ 33899 336 28 in in IN 33899 336 29 reality reality NN 33899 336 30 a a DT 33899 336 31 miniature miniature JJ 33899 336 32 explosion explosion NN 33899 336 33 in in IN 33899 336 34 the the DT 33899 336 35 mixing mix VBG 33899 336 36 chamber chamber NN 33899 336 37 ; ; : 33899 336 38 but but CC 33899 336 39 it -PRON- PRP 33899 336 40 can can MD 33899 336 41 in in IN 33899 336 42 any any DT 33899 336 43 case case NN 33899 336 44 hardly hardly RB 33899 336 45 be be VB 33899 336 46 serious serious JJ 33899 336 47 enough enough RB 33899 336 48 to to TO 33899 336 49 matter matter VB 33899 336 50 , , , 33899 336 51 though though IN 33899 336 52 I -PRON- PRP 33899 336 53 have have VBP 33899 336 54 found find VBN 33899 336 55 after after IN 33899 336 56 such such PDT 33899 336 57 a a DT 33899 336 58 snap snap NN 33899 336 59 that that IN 33899 336 60 the the DT 33899 336 61 gauze gauze NN 33899 336 62 packing packing NN 33899 336 63 , , , 33899 336 64 inside inside IN 33899 336 65 the the DT 33899 336 66 chamber chamber NN 33899 336 67 above above IN 33899 336 68 referred refer VBD 33899 336 69 to to IN 33899 336 70 , , , 33899 336 71 has have VBZ 33899 336 72 been be VBN 33899 336 73 pierced pierce VBN 33899 336 74 right right RB 33899 336 75 through through RB 33899 336 76 , , , 33899 336 77 and and CC 33899 336 78 , , , 33899 336 79 when when WRB 33899 336 80 first first RB 33899 336 81 lit light VBD 33899 336 82 afterwards afterwards RB 33899 336 83 , , , 33899 336 84 the the DT 33899 336 85 jet jet NN 33899 336 86 has have VBZ 33899 336 87 for for IN 33899 336 88 a a DT 33899 336 89 few few JJ 33899 336 90 minutes minute NNS 33899 336 91 burnt burn VBN 33899 336 92 with with IN 33899 336 93 a a DT 33899 336 94 characteristic characteristic JJ 33899 336 95 green green JJ 33899 336 96 flame flame NN 33899 336 97 , , , 33899 336 98 denoting denote VBG 33899 336 99 the the DT 33899 336 100 presence presence NN 33899 336 101 in in IN 33899 336 102 the the DT 33899 336 103 gas gas NN 33899 336 104 of of IN 33899 336 105 fine fine JJ 33899 336 106 copper copper NN 33899 336 107 or or CC 33899 336 108 brass brass NN 33899 336 109 particles particle NNS 33899 336 110 . . . 33899 337 1 To to TO 33899 337 2 obtain obtain VB 33899 337 3 a a DT 33899 337 4 good good JJ 33899 337 5 light light NN 33899 337 6 with with IN 33899 337 7 these these DT 33899 337 8 jets jet NNS 33899 337 9 , , , 33899 337 10 and and CC 33899 337 11 in in IN 33899 337 12 fact fact NN 33899 337 13 with with IN 33899 337 14 _ _ NNP 33899 337 15 all all DT 33899 337 16 _ _ NNP 33899 337 17 jets jet NNS 33899 337 18 , , , 33899 337 19 great great JJ 33899 337 20 care care NN 33899 337 21 must must MD 33899 337 22 be be VB 33899 337 23 taken take VBN 33899 337 24 that that IN 33899 337 25 the the DT 33899 337 26 nipple nipple NN 33899 337 27 is be VBZ 33899 337 28 absolutely absolutely RB 33899 337 29 smooth smooth JJ 33899 337 30 , , , 33899 337 31 otherwise otherwise RB 33899 337 32 the the DT 33899 337 33 flame flame NN 33899 337 34 is be VBZ 33899 337 35 bound bind VBN 33899 337 36 to to IN 33899 337 37 hiss hiss NNP 33899 337 38 . . . 33899 338 1 The the DT 33899 338 2 simplest simple JJS 33899 338 3 plan plan NN 33899 338 4 is be VBZ 33899 338 5 to to TO 33899 338 6 slightly slightly RB 33899 338 7 roughen roughen VB 33899 338 8 a a DT 33899 338 9 suitable suitable JJ 33899 338 10 sized sized JJ 33899 338 11 needle needle NN 33899 338 12 with with IN 33899 338 13 emery emery NN 33899 338 14 paper paper NNP 33899 338 15 and and CC 33899 338 16 to to TO 33899 338 17 burnish burnish VB 33899 338 18 the the DT 33899 338 19 inside inside NN 33899 338 20 of of IN 33899 338 21 the the DT 33899 338 22 nipple nipple NN 33899 338 23 from from IN 33899 338 24 time time NN 33899 338 25 to to IN 33899 338 26 time time NN 33899 338 27 with with IN 33899 338 28 this this DT 33899 338 29 . . . 33899 339 1 Especially especially RB 33899 339 2 if if IN 33899 339 3 there there EX 33899 339 4 has have VBZ 33899 339 5 been be VBN 33899 339 6 one one CD 33899 339 7 of of IN 33899 339 8 the the DT 33899 339 9 ' ' `` 33899 339 10 snaps snap NNS 33899 339 11 ' ' '' 33899 339 12 referred refer VBD 33899 339 13 to to IN 33899 339 14 is be VBZ 33899 339 15 it -PRON- PRP 33899 339 16 desirable desirable JJ 33899 339 17 to to TO 33899 339 18 see see VB 33899 339 19 that that IN 33899 339 20 the the DT 33899 339 21 inside inside NN 33899 339 22 of of IN 33899 339 23 the the DT 33899 339 24 nipple nipple NN 33899 339 25 is be VBZ 33899 339 26 thoroughly thoroughly RB 33899 339 27 smooth smooth JJ 33899 339 28 and and CC 33899 339 29 polished polished JJ 33899 339 30 . . . 33899 340 1 MANIPULATION manipulation NN 33899 340 2 OF of IN 33899 340 3 THE the DT 33899 340 4 MIXED MIXED NNP 33899 340 5 - - HYPH 33899 340 6 GAS gas NN 33899 340 7 JET.--On JET.--On NNP 33899 340 8 this this DT 33899 340 9 point point NN 33899 340 10 there there EX 33899 340 11 is be VBZ 33899 340 12 not not RB 33899 340 13 much much JJ 33899 340 14 to to TO 33899 340 15 be be VB 33899 340 16 said say VBN 33899 340 17 . . . 33899 341 1 A a DT 33899 341 2 good good JJ 33899 341 3 hard hard JJ 33899 341 4 stone stone NN 33899 341 5 lime lime NN 33899 341 6 must must MD 33899 341 7 be be VB 33899 341 8 used--'soft used--'soft IN 33899 341 9 ' ' `` 33899 341 10 limes lime NNS 33899 341 11 are be VBP 33899 341 12 useless useless JJ 33899 341 13 for for IN 33899 341 14 this this DT 33899 341 15 jet jet NN 33899 341 16 -- -- : 33899 341 17 and and CC 33899 341 18 the the DT 33899 341 19 coal coal NN 33899 341 20 gas gas NN 33899 341 21 flame flame NN 33899 341 22 should should MD 33899 341 23 be be VB 33899 341 24 lit light VBN 33899 341 25 first first RB 33899 341 26 , , , 33899 341 27 and and CC 33899 341 28 the the DT 33899 341 29 lime lime NN 33899 341 30 thoroughly thoroughly RB 33899 341 31 heated heat VBD 33899 341 32 with with IN 33899 341 33 this this DT 33899 341 34 before before IN 33899 341 35 the the DT 33899 341 36 oxygen oxygen NN 33899 341 37 is be VBZ 33899 341 38 slowly slowly RB 33899 341 39 turned turn VBN 33899 341 40 on on RP 33899 341 41 . . . 33899 342 1 As as IN 33899 342 2 the the DT 33899 342 3 oxygen oxygen NN 33899 342 4 increases increase VBZ 33899 342 5 the the DT 33899 342 6 flame flame NN 33899 342 7 will will MD 33899 342 8 gradually gradually RB 33899 342 9 disappear disappear VB 33899 342 10 and and CC 33899 342 11 the the DT 33899 342 12 light light JJ 33899 342 13 increase increase NN 33899 342 14 , , , 33899 342 15 until until IN 33899 342 16 it -PRON- PRP 33899 342 17 is be VBZ 33899 342 18 at at IN 33899 342 19 a a DT 33899 342 20 maximum maximum NN 33899 342 21 for for IN 33899 342 22 that that DT 33899 342 23 particular particular JJ 33899 342 24 amount amount NN 33899 342 25 of of IN 33899 342 26 coal coal NN 33899 342 27 gas gas NN 33899 342 28 . . . 33899 343 1 This this DT 33899 343 2 latter latter NN 33899 343 3 can can MD 33899 343 4 then then RB 33899 343 5 be be VB 33899 343 6 turned turn VBN 33899 343 7 on on RP 33899 343 8 a a DT 33899 343 9 little little JJ 33899 343 10 more more JJR 33899 343 11 , , , 33899 343 12 and and CC 33899 343 13 more more JJR 33899 343 14 oxygen oxygen NN 33899 343 15 passed pass VBD 33899 343 16 to to TO 33899 343 17 balance balance VB 33899 343 18 it -PRON- PRP 33899 343 19 until until IN 33899 343 20 the the DT 33899 343 21 jet jet NN 33899 343 22 begins begin VBZ 33899 343 23 to to TO 33899 343 24 ' ' `` 33899 343 25 roar roar VB 33899 343 26 , , , 33899 343 27 ' ' '' 33899 343 28 when when WRB 33899 343 29 we -PRON- PRP 33899 343 30 are be VBP 33899 343 31 getting get VBG 33899 343 32 the the DT 33899 343 33 maximum maximum JJ 33899 343 34 light light NN 33899 343 35 for for IN 33899 343 36 that that DT 33899 343 37 particular particular JJ 33899 343 38 sized sized JJ 33899 343 39 nipple nipple NN 33899 343 40 . . . 33899 344 1 When when WRB 33899 344 2 the the DT 33899 344 3 two two CD 33899 344 4 gases gas NNS 33899 344 5 are be VBP 33899 344 6 , , , 33899 344 7 however however RB 33899 344 8 , , , 33899 344 9 in in IN 33899 344 10 the the DT 33899 344 11 proper proper JJ 33899 344 12 proportion proportion NN 33899 344 13 to to TO 33899 344 14 give give VB 33899 344 15 the the DT 33899 344 16 best good JJS 33899 344 17 light light NN 33899 344 18 , , , 33899 344 19 there there EX 33899 344 20 will will MD 33899 344 21 always always RB 33899 344 22 be be VB 33899 344 23 a a DT 33899 344 24 slight slight JJ 33899 344 25 excess excess NN 33899 344 26 of of IN 33899 344 27 coal coal NN 33899 344 28 gas gas NN 33899 344 29 flame flame NN 33899 344 30 visible visible JJ 33899 344 31 playing playing NN 33899 344 32 about about IN 33899 344 33 the the DT 33899 344 34 lime lime NN 33899 344 35 . . . 33899 345 1 { { -LRB- 33899 345 2 30 30 CD 33899 345 3 } } -RRB- 33899 345 4 THE the DT 33899 345 5 INJECTOR INJECTOR NNP 33899 345 6 JET.--This jet.--this PRP 33899 345 7 is be VBZ 33899 345 8 essentially essentially RB 33899 345 9 a a DT 33899 345 10 mixed mixed JJ 33899 345 11 jet jet NN 33899 345 12 , , , 33899 345 13 and and CC 33899 345 14 in in IN 33899 345 15 outward outward JJ 33899 345 16 appearance appearance NN 33899 345 17 differs differ NNS 33899 345 18 but but CC 33899 345 19 little little JJ 33899 345 20 from from IN 33899 345 21 one one CD 33899 345 22 of of IN 33899 345 23 the the DT 33899 345 24 ordinary ordinary JJ 33899 345 25 type type NN 33899 345 26 ( ( -LRB- 33899 345 27 Fig fig NN 33899 345 28 . . . 33899 346 1 20 20 CD 33899 346 2 ) ) -RRB- 33899 346 3 , , , 33899 346 4 but but CC 33899 346 5 is be VBZ 33899 346 6 so so RB 33899 346 7 constructed construct VBN 33899 346 8 that that IN 33899 346 9 the the DT 33899 346 10 pressure pressure NN 33899 346 11 of of IN 33899 346 12 oxygen oxygen NN 33899 346 13 ' ' `` 33899 346 14 sucks suck NNS 33899 346 15 ' ' POS 33899 346 16 coal coal NN 33899 346 17 gas gas NN 33899 346 18 into into IN 33899 346 19 the the DT 33899 346 20 mixing mix VBG 33899 346 21 chamber chamber NN 33899 346 22 , , , 33899 346 23 and and CC 33899 346 24 so so RB 33899 346 25 obviates obviate NNS 33899 346 26 all all DT 33899 346 27 necessity necessity NN 33899 346 28 for for IN 33899 346 29 the the DT 33899 346 30 latter latter JJ 33899 346 31 being be VBG 33899 346 32 under under IN 33899 346 33 pressure pressure NN 33899 346 34 . . . 33899 347 1 With with IN 33899 347 2 this this DT 33899 347 3 jet jet NN 33899 347 4 there there EX 33899 347 5 is be VBZ 33899 347 6 little little JJ 33899 347 7 or or CC 33899 347 8 no no DT 33899 347 9 danger danger NN 33899 347 10 of of IN 33899 347 11 the the DT 33899 347 12 jet jet NN 33899 347 13 ' ' `` 33899 347 14 snapping snapping NN 33899 347 15 ' ' '' 33899 347 16 out out RB 33899 347 17 through through IN 33899 347 18 a a DT 33899 347 19 surplus surplus NN 33899 347 20 of of IN 33899 347 21 oxygen oxygen NN 33899 347 22 , , , 33899 347 23 as as IN 33899 347 24 the the DT 33899 347 25 greater great JJR 33899 347 26 the the DT 33899 347 27 flow flow NN 33899 347 28 of of IN 33899 347 29 this this DT 33899 347 30 gas gas NN 33899 347 31 , , , 33899 347 32 the the DT 33899 347 33 greater great JJR 33899 347 34 the the DT 33899 347 35 suction suction NN 33899 347 36 on on IN 33899 347 37 the the DT 33899 347 38 coal coal NN 33899 347 39 gas gas NN 33899 347 40 side side NN 33899 347 41 . . . 33899 348 1 The the DT 33899 348 2 light light NN 33899 348 3 is be VBZ 33899 348 4 not not RB 33899 348 5 quite quite RB 33899 348 6 equal equal JJ 33899 348 7 to to IN 33899 348 8 a a DT 33899 348 9 good good JJ 33899 348 10 mixed mixed JJ 33899 348 11 jet jet NN 33899 348 12 , , , 33899 348 13 but but CC 33899 348 14 very very RB 33899 348 15 nearly nearly RB 33899 348 16 so so RB 33899 348 17 , , , 33899 348 18 and and CC 33899 348 19 therefore therefore RB 33899 348 20 this this DT 33899 348 21 jet jet NN 33899 348 22 is be VBZ 33899 348 23 deservedly deservedly RB 33899 348 24 gaining gain VBG 33899 348 25 in in IN 33899 348 26 favour favour NN 33899 348 27 every every DT 33899 348 28 day day NN 33899 348 29 . . . 33899 349 1 [ [ -LRB- 33899 349 2 Illustration illustration NN 33899 349 3 : : : 33899 349 4 FIG FIG NNP 33899 349 5 . . . 33899 350 1 20.--'Injector 20.--'Injector NNP 33899 350 2 ' ' POS 33899 350 3 Jet Jet NNP 33899 350 4 . . . 33899 350 5 ] ] -RRB- 33899 351 1 One one CD 33899 351 2 point point NN 33899 351 3 must must MD 33899 351 4 be be VB 33899 351 5 noted note VBN 33899 351 6 : : : 33899 351 7 the the DT 33899 351 8 oxygen oxygen NN 33899 351 9 itself -PRON- PRP 33899 351 10 must must MD 33899 351 11 be be VB 33899 351 12 under under IN 33899 351 13 greater great JJR 33899 351 14 pressure pressure NN 33899 351 15 than than IN 33899 351 16 with with IN 33899 351 17 the the DT 33899 351 18 ordinary ordinary JJ 33899 351 19 mixed mixed JJ 33899 351 20 jet jet NN 33899 351 21 if if IN 33899 351 22 the the DT 33899 351 23 best good JJS 33899 351 24 light light NN 33899 351 25 is be VBZ 33899 351 26 to to TO 33899 351 27 be be VB 33899 351 28 obtained obtain VBN 33899 351 29 , , , 33899 351 30 and and CC 33899 351 31 therefore therefore RB 33899 351 32 a a DT 33899 351 33 special special JJ 33899 351 34 regulator regulator NN 33899 351 35 must must MD 33899 351 36 be be VB 33899 351 37 used use VBN 33899 351 38 , , , 33899 351 39 or or CC 33899 351 40 one one CD 33899 351 41 of of IN 33899 351 42 ordinary ordinary JJ 33899 351 43 type type NN 33899 351 44 modified modify VBN 33899 351 45 ( ( -LRB- 33899 351 46 which which WDT 33899 351 47 can can MD 33899 351 48 easily easily RB 33899 351 49 be be VB 33899 351 50 done do VBN 33899 351 51 by by IN 33899 351 52 the the DT 33899 351 53 maker maker NN 33899 351 54 ) ) -RRB- 33899 351 55 , , , 33899 351 56 and and CC 33899 351 57 rubber rubber NN 33899 351 58 connections connection NNS 33899 351 59 must must MD 33899 351 60 be be VB 33899 351 61 securely securely RB 33899 351 62 tied tie VBN 33899 351 63 both both DT 33899 351 64 on on RP 33899 351 65 to to IN 33899 351 66 jet jet NN 33899 351 67 and and CC 33899 351 68 regulator regulator NN 33899 351 69 , , , 33899 351 70 as as IN 33899 351 71 the the DT 33899 351 72 pressure pressure NN 33899 351 73 required require VBN 33899 351 74 to to TO 33899 351 75 work work VB 33899 351 76 this this DT 33899 351 77 jet jet NN 33899 351 78 to to IN 33899 351 79 advantage advantage NN 33899 351 80 , , , 33899 351 81 while while IN 33899 351 82 not not RB 33899 351 83 enough enough JJ 33899 351 84 to to TO 33899 351 85 burst burst VB 33899 351 86 a a DT 33899 351 87 rubber rubber NN 33899 351 88 tube tube NN 33899 351 89 , , , 33899 351 90 is be VBZ 33899 351 91 enough enough JJ 33899 351 92 to to TO 33899 351 93 blow blow VB 33899 351 94 it -PRON- PRP 33899 351 95 off off IN 33899 351 96 an an DT 33899 351 97 easy easy JJ 33899 351 98 fitting fitting JJ 33899 351 99 connection connection NN 33899 351 100 . . . 33899 352 1 THE the DT 33899 352 2 OXYETHER OXYETHER NNP 33899 352 3 LIGHT.--This LIGHT.--This NNP 33899 352 4 is be VBZ 33899 352 5 practically practically RB 33899 352 6 similar similar JJ 33899 352 7 to to IN 33899 352 8 the the DT 33899 352 9 oxyhydrogen oxyhydrogen NN 33899 352 10 , , , 33899 352 11 except except IN 33899 352 12 that that DT 33899 352 13 ether ether NN 33899 352 14 vapour vapour NN 33899 352 15 is be VBZ 33899 352 16 used use VBN 33899 352 17 in in IN 33899 352 18 place place NN 33899 352 19 of of IN 33899 352 20 the the DT 33899 352 21 hydrogen hydrogen NN 33899 352 22 or or CC 33899 352 23 coal coal NN 33899 352 24 gas gas NN 33899 352 25 . . . 33899 353 1 The the DT 33899 353 2 method method NN 33899 353 3 adopted adopt VBD 33899 353 4 consists consist VBZ 33899 353 5 essentially essentially RB 33899 353 6 of of IN 33899 353 7 passing pass VBG 33899 353 8 a a DT 33899 353 9 stream stream NN 33899 353 10 of of IN 33899 353 11 oxygen oxygen NN 33899 353 12 through through IN 33899 353 13 a a DT 33899 353 14 vessel vessel NN 33899 353 15 packed pack VBN 33899 353 16 with with IN 33899 353 17 some some DT 33899 353 18 porous porous JJ 33899 353 19 material material NN 33899 353 20 ( ( -LRB- 33899 353 21 such such JJ 33899 353 22 as as IN 33899 353 23 cotton cotton NN 33899 353 24 wool wool NN 33899 353 25 or or CC 33899 353 26 cotton cotton NN 33899 353 27 gauze gauze NN 33899 353 28 ) ) -RRB- 33899 353 29 which which WDT 33899 353 30 is be VBZ 33899 353 31 saturated saturate VBN 33899 353 32 with with IN 33899 353 33 ether ether NN 33899 353 34 . . . 33899 354 1 The the DT 33899 354 2 oxygen oxygen NN 33899 354 3 { { -LRB- 33899 354 4 31 31 CD 33899 354 5 } } -RRB- 33899 354 6 becomes become VBZ 33899 354 7 saturated saturate VBN 33899 354 8 with with IN 33899 354 9 ether ether NN 33899 354 10 vapour vapour NN 33899 354 11 , , , 33899 354 12 and and CC 33899 354 13 the the DT 33899 354 14 mixture mixture NN 33899 354 15 is be VBZ 33899 354 16 then then RB 33899 354 17 used use VBN 33899 354 18 in in IN 33899 354 19 place place NN 33899 354 20 of of IN 33899 354 21 the the DT 33899 354 22 coal coal NN 33899 354 23 gas gas NN 33899 354 24 supply supply NN 33899 354 25 in in IN 33899 354 26 a a DT 33899 354 27 double double JJ 33899 354 28 - - HYPH 33899 354 29 pressure pressure NN 33899 354 30 jet jet NN 33899 354 31 , , , 33899 354 32 an an DT 33899 354 33 additional additional JJ 33899 354 34 supply supply NN 33899 354 35 of of IN 33899 354 36 free free JJ 33899 354 37 oxygen oxygen NN 33899 354 38 being be VBG 33899 354 39 still still RB 33899 354 40 required require VBN 33899 354 41 through through IN 33899 354 42 the the DT 33899 354 43 ordinary ordinary JJ 33899 354 44 oxygen oxygen NN 33899 354 45 tap tap NN 33899 354 46 . . . 33899 355 1 The the DT 33899 355 2 arrangement arrangement NN 33899 355 3 is be VBZ 33899 355 4 cheap cheap JJ 33899 355 5 , , , 33899 355 6 as as IN 33899 355 7 it -PRON- PRP 33899 355 8 dispenses dispense VBZ 33899 355 9 with with IN 33899 355 10 the the DT 33899 355 11 necessity necessity NN 33899 355 12 for for IN 33899 355 13 a a DT 33899 355 14 coal coal NN 33899 355 15 gas gas NN 33899 355 16 cylinder cylinder NN 33899 355 17 , , , 33899 355 18 and and CC 33899 355 19 effective effective JJ 33899 355 20 , , , 33899 355 21 as as IN 33899 355 22 the the DT 33899 355 23 light light NN 33899 355 24 is be VBZ 33899 355 25 little little JJ 33899 355 26 , , , 33899 355 27 if if IN 33899 355 28 at at RB 33899 355 29 all all RB 33899 355 30 inferior inferior JJ 33899 355 31 to to IN 33899 355 32 the the DT 33899 355 33 oxyhydrogen oxyhydrogen NN 33899 355 34 , , , 33899 355 35 but but CC 33899 355 36 differs differ NNS 33899 355 37 from from IN 33899 355 38 the the DT 33899 355 39 latter latter JJ 33899 355 40 in in IN 33899 355 41 this this DT 33899 355 42 , , , 33899 355 43 that that IN 33899 355 44 with with IN 33899 355 45 careless careless JJ 33899 355 46 handling handle VBG 33899 355 47 an an DT 33899 355 48 accident accident NN 33899 355 49 is be VBZ 33899 355 50 _ _ NNP 33899 355 51 possible possible JJ 33899 355 52 _ _ NNP 33899 355 53 . . . 33899 356 1 In in IN 33899 356 2 competent competent JJ 33899 356 3 hands hand NNS 33899 356 4 there there EX 33899 356 5 is be VBZ 33899 356 6 no no DT 33899 356 7 danger danger NN 33899 356 8 , , , 33899 356 9 and and CC 33899 356 10 I -PRON- PRP 33899 356 11 have have VBP 33899 356 12 used use VBN 33899 356 13 ether ether NN 33899 356 14 saturators saturator NNS 33899 356 15 myself -PRON- PRP 33899 356 16 scores score NNS 33899 356 17 of of IN 33899 356 18 times time NNS 33899 356 19 without without IN 33899 356 20 one one CD 33899 356 21 single single JJ 33899 356 22 contretemps contretemp NNS 33899 356 23 ; ; : 33899 356 24 but but CC 33899 356 25 it -PRON- PRP 33899 356 26 should should MD 33899 356 27 _ _ NNP 33899 356 28 not not RB 33899 356 29 _ _ NNP 33899 356 30 be be VB 33899 356 31 entrusted entrust VBN 33899 356 32 to to IN 33899 356 33 any any DT 33899 356 34 chance chance NN 33899 356 35 amateur amateur JJ 33899 356 36 . . . 33899 357 1 The the DT 33899 357 2 use use NN 33899 357 3 of of IN 33899 357 4 the the DT 33899 357 5 ether ether NN 33899 357 6 light light NN 33899 357 7 has have VBZ 33899 357 8 a a DT 33899 357 9 curious curious JJ 33899 357 10 history history NN 33899 357 11 . . . 33899 358 1 In in IN 33899 358 2 the the DT 33899 358 3 earlier early JJR 33899 358 4 days day NNS 33899 358 5 before before IN 33899 358 6 the the DT 33899 358 7 proper proper JJ 33899 358 8 construction construction NN 33899 358 9 of of IN 33899 358 10 ether ether NN 33899 358 11 saturators saturator NNS 33899 358 12 was be VBD 33899 358 13 understood understand VBN 33899 358 14 , , , 33899 358 15 and and CC 33899 358 16 gas gas NN 33899 358 17 - - HYPH 33899 358 18 bags bag NNS 33899 358 19 were be VBD 33899 358 20 still still RB 33899 358 21 in in IN 33899 358 22 vogue vogue NN 33899 358 23 , , , 33899 358 24 it -PRON- PRP 33899 358 25 was be VBD 33899 358 26 largely largely RB 33899 358 27 condemned condemn VBN 33899 358 28 on on IN 33899 358 29 the the DT 33899 358 30 score score NN 33899 358 31 of of IN 33899 358 32 danger danger NN 33899 358 33 . . . 33899 359 1 Modern modern JJ 33899 359 2 improvements improvement NNS 33899 359 3 in in IN 33899 359 4 apparatus apparatus NN 33899 359 5 rendered render VBD 33899 359 6 it -PRON- PRP 33899 359 7 perfectly perfectly RB 33899 359 8 safe safe JJ 33899 359 9 against against IN 33899 359 10 anything anything NN 33899 359 11 but but CC 33899 359 12 gross gross JJ 33899 359 13 carelessness carelessness NN 33899 359 14 or or CC 33899 359 15 bungling bungling NN 33899 359 16 , , , 33899 359 17 and and CC 33899 359 18 the the DT 33899 359 19 London London NNP 33899 359 20 County County NNP 33899 359 21 Council Council NNP 33899 359 22 and and CC 33899 359 23 other other JJ 33899 359 24 similar similar JJ 33899 359 25 bodies body NNS 33899 359 26 immediately immediately RB 33899 359 27 supplied supply VBD 33899 359 28 it -PRON- PRP 33899 359 29 broadcast broadcast VBD 33899 359 30 to to IN 33899 359 31 elementary elementary JJ 33899 359 32 schools school NNS 33899 359 33 ( ( -LRB- 33899 359 34 in in IN 33899 359 35 disregard disregard NN 33899 359 36 of of IN 33899 359 37 warnings warning NNS 33899 359 38 offered offer VBN 33899 359 39 by by IN 33899 359 40 myself -PRON- PRP 33899 359 41 and and CC 33899 359 42 others other NNS 33899 359 43 ) ) -RRB- 33899 359 44 , , , 33899 359 45 where where WRB 33899 359 46 it -PRON- PRP 33899 359 47 was be VBD 33899 359 48 often often RB 33899 359 49 entrusted entrust VBN 33899 359 50 to to IN 33899 359 51 incompetent incompetent JJ 33899 359 52 operators operator NNS 33899 359 53 or or CC 33899 359 54 even even RB 33899 359 55 senior senior JJ 33899 359 56 boys boy NNS 33899 359 57 . . . 33899 360 1 So so RB 33899 360 2 far far RB 33899 360 3 as as IN 33899 360 4 I -PRON- PRP 33899 360 5 know know VBP 33899 360 6 no no DT 33899 360 7 serious serious JJ 33899 360 8 accident accident NN 33899 360 9 ever ever RB 33899 360 10 resulted result VBD 33899 360 11 , , , 33899 360 12 a a DT 33899 360 13 pretty pretty RB 33899 360 14 conclusive conclusive JJ 33899 360 15 proof proof NN 33899 360 16 that that IN 33899 360 17 the the DT 33899 360 18 light light NN 33899 360 19 is be VBZ 33899 360 20 really really RB 33899 360 21 safe safe JJ 33899 360 22 , , , 33899 360 23 but but CC 33899 360 24 in in IN 33899 360 25 time time NN 33899 360 26 the the DT 33899 360 27 London London NNP 33899 360 28 County County NNP 33899 360 29 Council Council NNP 33899 360 30 realised realise VBD 33899 360 31 that that IN 33899 360 32 the the DT 33899 360 33 universal universal JJ 33899 360 34 adoption adoption NN 33899 360 35 of of IN 33899 360 36 this this DT 33899 360 37 illuminant illuminant NN 33899 360 38 was be VBD 33899 360 39 not not RB 33899 360 40 advisable advisable JJ 33899 360 41 , , , 33899 360 42 and and CC 33899 360 43 I -PRON- PRP 33899 360 44 believe believe VBP 33899 360 45 _ _ NNP 33899 360 46 now now RB 33899 360 47 _ _ NNP 33899 360 48 prohibit prohibit NN 33899 360 49 it -PRON- PRP 33899 360 50 altogether altogether RB 33899 360 51 in in IN 33899 360 52 halls hall NNS 33899 360 53 licensed license VBN 33899 360 54 by by IN 33899 360 55 them -PRON- PRP 33899 360 56 for for IN 33899 360 57 entertainments entertainment NNS 33899 360 58 . . . 33899 361 1 In in IN 33899 361 2 time time NN 33899 361 3 , , , 33899 361 4 no no RB 33899 361 5 doubt doubt RB 33899 361 6 , , , 33899 361 7 they -PRON- PRP 33899 361 8 will will MD 33899 361 9 learn learn VB 33899 361 10 to to TO 33899 361 11 adopt adopt VB 33899 361 12 a a DT 33899 361 13 sane sane JJ 33899 361 14 policy policy NN 33899 361 15 between between IN 33899 361 16 the the DT 33899 361 17 two two CD 33899 361 18 extremes extreme NNS 33899 361 19 , , , 33899 361 20 but but CC 33899 361 21 at at IN 33899 361 22 present present JJ 33899 361 23 the the DT 33899 361 24 official official JJ 33899 361 25 attitude attitude NN 33899 361 26 in in IN 33899 361 27 many many JJ 33899 361 28 localities locality NNS 33899 361 29 has have VBZ 33899 361 30 placed place VBN 33899 361 31 ether ether NN 33899 361 32 saturators saturator NNS 33899 361 33 out out IN 33899 361 34 of of IN 33899 361 35 the the DT 33899 361 36 running running NN 33899 361 37 , , , 33899 361 38 and and CC 33899 361 39 before before IN 33899 361 40 purchasing purchase VBG 33899 361 41 one one CD 33899 361 42 the the DT 33899 361 43 would would MD 33899 361 44 - - HYPH 33899 361 45 be be VB 33899 361 46 operator operator NN 33899 361 47 should should MD 33899 361 48 ascertain ascertain VB 33899 361 49 that that IN 33899 361 50 he -PRON- PRP 33899 361 51 will will MD 33899 361 52 be be VB 33899 361 53 allowed allow VBN 33899 361 54 to to TO 33899 361 55 use use VB 33899 361 56 it -PRON- PRP 33899 361 57 . . . 33899 362 1 Ether ether NN 33899 362 2 saturators saturator NNS 33899 362 3 as as IN 33899 362 4 made make VBN 33899 362 5 at at IN 33899 362 6 the the DT 33899 362 7 present present JJ 33899 362 8 day day NN 33899 362 9 may may MD 33899 362 10 be be VB 33899 362 11 divided divide VBN 33899 362 12 into into IN 33899 362 13 two two CD 33899 362 14 principal principal JJ 33899 362 15 patterns pattern NNS 33899 362 16 , , , 33899 362 17 viz viz NN 33899 362 18 . . . 33899 363 1 those those DT 33899 363 2 in in IN 33899 363 3 which which WDT 33899 363 4 saturator saturator NN 33899 363 5 and and CC 33899 363 6 jet jet NN 33899 363 7 are be VBP 33899 363 8 combined combine VBN 33899 363 9 in in IN 33899 363 10 one one CD 33899 363 11 piece piece NN 33899 363 12 of of IN 33899 363 13 apparatus apparatus NNP 33899 363 14 { { -LRB- 33899 363 15 32 32 CD 33899 363 16 } } -RRB- 33899 363 17 which which WDT 33899 363 18 fits fit VBZ 33899 363 19 bodily bodily RB 33899 363 20 into into IN 33899 363 21 the the DT 33899 363 22 lantern lantern NN 33899 363 23 , , , 33899 363 24 and and CC 33899 363 25 saturators saturator NNS 33899 363 26 which which WDT 33899 363 27 are be VBP 33899 363 28 used use VBN 33899 363 29 outside outside RB 33899 363 30 and and CC 33899 363 31 connected connect VBN 33899 363 32 by by IN 33899 363 33 means mean NNS 33899 363 34 of of IN 33899 363 35 tubing tube VBG 33899 363 36 to to IN 33899 363 37 any any DT 33899 363 38 ordinary ordinary JJ 33899 363 39 oxyhydrogen oxyhydrogen JJ 33899 363 40 double double JJ 33899 363 41 - - HYPH 33899 363 42 pressure pressure NN 33899 363 43 jet jet NN 33899 363 44 . . . 33899 364 1 Both both DT 33899 364 2 forms form NNS 33899 364 3 have have VBP 33899 364 4 their -PRON- PRP$ 33899 364 5 advantages advantage NNS 33899 364 6 and and CC 33899 364 7 disadvantages disadvantage NNS 33899 364 8 ; ; : 33899 364 9 the the DT 33899 364 10 first first JJ 33899 364 11 pattern pattern NN 33899 364 12 tends tend VBZ 33899 364 13 to to TO 33899 364 14 become become VB 33899 364 15 too too RB 33899 364 16 warm warm JJ 33899 364 17 from from IN 33899 364 18 its -PRON- PRP$ 33899 364 19 position position NN 33899 364 20 in in IN 33899 364 21 the the DT 33899 364 22 lantern lantern NN 33899 364 23 and and CC 33899 364 24 generates generate VBZ 33899 364 25 ether ether NN 33899 364 26 vapour vapour NN 33899 364 27 too too RB 33899 364 28 quickly quickly RB 33899 364 29 , , , 33899 364 30 while while IN 33899 364 31 the the DT 33899 364 32 second second JJ 33899 364 33 has have VBZ 33899 364 34 the the DT 33899 364 35 fault fault NN 33899 364 36 of of IN 33899 364 37 becoming become VBG 33899 364 38 too too RB 33899 364 39 cold cold JJ 33899 364 40 ( ( -LRB- 33899 364 41 owing owe VBG 33899 364 42 to to IN 33899 364 43 evaporation evaporation NN 33899 364 44 of of IN 33899 364 45 the the DT 33899 364 46 ether ether NN 33899 364 47 ) ) -RRB- 33899 364 48 and and CC 33899 364 49 therefore therefore RB 33899 364 50 not not RB 33899 364 51 vaporising vaporise VBG 33899 364 52 quickly quickly RB 33899 364 53 _ _ NNP 33899 364 54 enough enough JJ 33899 364 55 _ _ NNP 33899 364 56 . . . 33899 365 1 [ [ -LRB- 33899 365 2 Illustration illustration NN 33899 365 3 : : : 33899 365 4 FIG FIG NNP 33899 365 5 . . . 33899 366 1 21.--'Gridiron 21.--'Gridiron NNP 33899 366 2 ' ' `` 33899 366 3 Saturator Saturator NNP 33899 366 4 . . . 33899 366 5 ] ] -RRB- 33899 367 1 Writing write VBG 33899 367 2 at at IN 33899 367 3 the the DT 33899 367 4 present present JJ 33899 367 5 date date NN 33899 367 6 , , , 33899 367 7 when when WRB 33899 367 8 manufacturers manufacturer NNS 33899 367 9 are be VBP 33899 367 10 slowly slowly RB 33899 367 11 beginning begin VBG 33899 367 12 to to TO 33899 367 13 resume resume VB 33899 367 14 their -PRON- PRP$ 33899 367 15 normal normal JJ 33899 367 16 occupations occupation NNS 33899 367 17 after after IN 33899 367 18 the the DT 33899 367 19 stress stress NN 33899 367 20 of of IN 33899 367 21 war war NN 33899 367 22 work work NN 33899 367 23 , , , 33899 367 24 it -PRON- PRP 33899 367 25 is be VBZ 33899 367 26 impossible impossible JJ 33899 367 27 to to TO 33899 367 28 say say VB 33899 367 29 exactly exactly RB 33899 367 30 what what WP 33899 367 31 models model NNS 33899 367 32 will will MD 33899 367 33 or or CC 33899 367 34 will will MD 33899 367 35 not not RB 33899 367 36 be be VB 33899 367 37 made make VBN 33899 367 38 , , , 33899 367 39 but but CC 33899 367 40 I -PRON- PRP 33899 367 41 will will MD 33899 367 42 mention mention VB 33899 367 43 one one CD 33899 367 44 typical typical JJ 33899 367 45 example example NN 33899 367 46 of of IN 33899 367 47 each each DT 33899 367 48 pattern pattern NN 33899 367 49 as as IN 33899 367 50 made make VBN 33899 367 51 in in IN 33899 367 52 pre pre JJ 33899 367 53 - - JJ 33899 367 54 war war JJ 33899 367 55 days day NNS 33899 367 56 . . . 33899 368 1 The the DT 33899 368 2 first first JJ 33899 368 3 of of IN 33899 368 4 these these DT 33899 368 5 is be VBZ 33899 368 6 the the DT 33899 368 7 ' ' `` 33899 368 8 Gridiron Gridiron NNP 33899 368 9 ' ' '' 33899 368 10 ( ( -LRB- 33899 368 11 Fig fig NN 33899 368 12 . . . 33899 369 1 21 21 CD 33899 369 2 ) ) -RRB- 33899 369 3 , , , 33899 369 4 adopted adopt VBN 33899 369 5 largely largely RB 33899 369 6 by by IN 33899 369 7 the the DT 33899 369 8 London London NNP 33899 369 9 County County NNP 33899 369 10 Council Council NNP 33899 369 11 in in IN 33899 369 12 the the DT 33899 369 13 days day NNS 33899 369 14 I -PRON- PRP 33899 369 15 have have VBP 33899 369 16 referred refer VBN 33899 369 17 to to IN 33899 369 18 , , , 33899 369 19 and and CC 33899 369 20 certainly certainly RB 33899 369 21 one one CD 33899 369 22 of of IN 33899 369 23 the the DT 33899 369 24 best good JJS 33899 369 25 designed design VBN 33899 369 26 saturators saturator NNS 33899 369 27 ever ever RB 33899 369 28 put put VBN 33899 369 29 on on IN 33899 369 30 the the DT 33899 369 31 market market NN 33899 369 32 . . . 33899 370 1 In in IN 33899 370 2 the the DT 33899 370 3 ' ' `` 33899 370 4 Gridiron Gridiron NNP 33899 370 5 ' ' '' 33899 370 6 saturator saturator NN 33899 370 7 there there EX 33899 370 8 are be VBP 33899 370 9 three three CD 33899 370 10 taps tap NNS 33899 370 11 : : : 33899 370 12 two two CD 33899 370 13 at at IN 33899 370 14 the the DT 33899 370 15 { { -LRB- 33899 370 16 33 33 CD 33899 370 17 } } -RRB- 33899 370 18 rear rear NN 33899 370 19 and and CC 33899 370 20 one one CD 33899 370 21 in in IN 33899 370 22 front front NN 33899 370 23 , , , 33899 370 24 between between IN 33899 370 25 the the DT 33899 370 26 saturator saturator NN 33899 370 27 and and CC 33899 370 28 the the DT 33899 370 29 mixing mix VBG 33899 370 30 chamber chamber NN 33899 370 31 . . . 33899 371 1 Between between IN 33899 371 2 the the DT 33899 371 3 rear rear JJ 33899 371 4 taps tap NNS 33899 371 5 is be VBZ 33899 371 6 the the DT 33899 371 7 inlet inlet NN 33899 371 8 for for IN 33899 371 9 the the DT 33899 371 10 oxygen oxygen NN 33899 371 11 , , , 33899 371 12 which which WDT 33899 371 13 divides divide VBZ 33899 371 14 into into IN 33899 371 15 two two CD 33899 371 16 channels channel NNS 33899 371 17 , , , 33899 371 18 that that IN 33899 371 19 on on IN 33899 371 20 the the DT 33899 371 21 left left NN 33899 371 22 passing pass VBG 33899 371 23 upwards upwards RB 33899 371 24 through through IN 33899 371 25 the the DT 33899 371 26 U U NNP 33899 371 27 tube tube NN 33899 371 28 shown show VBN 33899 371 29 in in IN 33899 371 30 the the DT 33899 371 31 illustration illustration NN 33899 371 32 ( ( -LRB- 33899 371 33 the the DT 33899 371 34 corresponding correspond VBG 33899 371 35 tube tube NN 33899 371 36 on on IN 33899 371 37 the the DT 33899 371 38 right right NN 33899 371 39 is be VBZ 33899 371 40 merely merely RB 33899 371 41 a a DT 33899 371 42 dummy dummy NN 33899 371 43 ) ) -RRB- 33899 371 44 , , , 33899 371 45 and and CC 33899 371 46 thence thence NN 33899 371 47 through through IN 33899 371 48 the the DT 33899 371 49 saturator saturator NN 33899 371 50 and and CC 33899 371 51 out out RB 33899 371 52 through through IN 33899 371 53 the the DT 33899 371 54 horizontal horizontal JJ 33899 371 55 tube tube NN 33899 371 56 and and CC 33899 371 57 tap tap VB 33899 371 58 into into IN 33899 371 59 the the DT 33899 371 60 mixing mix VBG 33899 371 61 chamber chamber NN 33899 371 62 , , , 33899 371 63 whence whence NN 33899 371 64 the the DT 33899 371 65 saturated saturate VBN 33899 371 66 stream stream NN 33899 371 67 of of IN 33899 371 68 oxygen oxygen NN 33899 371 69 finally finally RB 33899 371 70 passes pass VBZ 33899 371 71 to to IN 33899 371 72 the the DT 33899 371 73 nipple nipple NN 33899 371 74 , , , 33899 371 75 and and CC 33899 371 76 the the DT 33899 371 77 combination combination NN 33899 371 78 burns burn VBZ 33899 371 79 with with IN 33899 371 80 a a DT 33899 371 81 whitish whitish JJ 33899 371 82 flame flame NN 33899 371 83 closely closely RB 33899 371 84 resembling resemble VBG 33899 371 85 that that IN 33899 371 86 produced produce VBN 33899 371 87 by by IN 33899 371 88 coal coal NN 33899 371 89 gas gas NN 33899 371 90 . . . 33899 372 1 [ [ -LRB- 33899 372 2 Illustration illustration NN 33899 372 3 : : : 33899 372 4 FIG FIG NNP 33899 372 5 . . . 33899 373 1 22.--'Pendant 22.--'Pendant NNP 33899 373 2 ' ' POS 33899 373 3 Saturator Saturator NNP 33899 373 4 . . . 33899 373 5 ] ] -RRB- 33899 374 1 The the DT 33899 374 2 other other JJ 33899 374 3 channel channel NN 33899 374 4 for for IN 33899 374 5 the the DT 33899 374 6 oxygen oxygen NN 33899 374 7 is be VBZ 33899 374 8 to to IN 33899 374 9 the the DT 33899 374 10 right right NN 33899 374 11 , , , 33899 374 12 down down IN 33899 374 13 the the DT 33899 374 14 vertical vertical JJ 33899 374 15 tube tube NN 33899 374 16 shown show VBN 33899 374 17 there there RB 33899 374 18 ( ( -LRB- 33899 374 19 the the DT 33899 374 20 lower low JJR 33899 374 21 vertical vertical JJ 33899 374 22 tube tube NN 33899 374 23 on on IN 33899 374 24 the the DT 33899 374 25 left left NN 33899 374 26 is be VBZ 33899 374 27 also also RB 33899 374 28 a a DT 33899 374 29 dummy dummy NN 33899 374 30 ) ) -RRB- 33899 374 31 , , , 33899 374 32 underneath underneath IN 33899 374 33 the the DT 33899 374 34 saturator saturator NN 33899 374 35 , , , 33899 374 36 and and CC 33899 374 37 finally finally RB 33899 374 38 coming come VBG 33899 374 39 up up RP 33899 374 40 into into IN 33899 374 41 the the DT 33899 374 42 mixing mix VBG 33899 374 43 chamber chamber NN 33899 374 44 from from IN 33899 374 45 below below RB 33899 374 46 , , , 33899 374 47 transforming transform VBG 33899 374 48 the the DT 33899 374 49 white white JJ 33899 374 50 flame flame NN 33899 374 51 into into IN 33899 374 52 an an DT 33899 374 53 intensely intensely RB 33899 374 54 hot hot JJ 33899 374 55 blowpipe blowpipe NN 33899 374 56 exactly exactly RB 33899 374 57 as as IN 33899 374 58 it -PRON- PRP 33899 374 59 does do VBZ 33899 374 60 with with IN 33899 374 61 a a DT 33899 374 62 coal coal NN 33899 374 63 gas gas NN 33899 374 64 jet jet NN 33899 374 65 . . . 33899 375 1 The the DT 33899 375 2 front front JJ 33899 375 3 tap tap NN 33899 375 4 controls control VBZ 33899 375 5 the the DT 33899 375 6 supply supply NN 33899 375 7 of of IN 33899 375 8 saturated saturate VBN 33899 375 9 ether ether NN 33899 375 10 to to IN 33899 375 11 the the DT 33899 375 12 mixing mix VBG 33899 375 13 chamber chamber NN 33899 375 14 , , , 33899 375 15 and and CC 33899 375 16 whereas whereas IN 33899 375 17 at at IN 33899 375 18 first first RB 33899 375 19 a a DT 33899 375 20 good good JJ 33899 375 21 stream stream NN 33899 375 22 of of IN 33899 375 23 oxygen oxygen NN 33899 375 24 is be VBZ 33899 375 25 needed need VBN 33899 375 26 to to TO 33899 375 27 pick pick VB 33899 375 28 up up RP 33899 375 29 enough enough JJ 33899 375 30 ether ether NN 33899 375 31 , , , 33899 375 32 by by IN 33899 375 33 degrees degree NNS 33899 375 34 as as IN 33899 375 35 the the DT 33899 375 36 instrument instrument NN 33899 375 37 warms warm VBZ 33899 375 38 in in IN 33899 375 39 the the DT 33899 375 40 lantern lantern NN 33899 375 41 , , , 33899 375 42 the the DT 33899 375 43 oxygen oxygen NN 33899 375 44 passing pass VBG 33899 375 45 through through IN 33899 375 46 the the DT 33899 375 47 saturator saturator NN 33899 375 48 can can MD 33899 375 49 be be VB 33899 375 50 cut cut VBN 33899 375 51 off off RP 33899 375 52 entirely entirely RB 33899 375 53 , , , 33899 375 54 and and CC 33899 375 55 even even RB 33899 375 56 then then RB 33899 375 57 the the DT 33899 375 58 front front JJ 33899 375 59 tap tap NN 33899 375 60 must must MD 33899 375 61 be be VB 33899 375 62 gradually gradually RB 33899 375 63 closed close VBN 33899 375 64 down down RP 33899 375 65 to to TO 33899 375 66 prevent prevent VB 33899 375 67 the the DT 33899 375 68 hot hot JJ 33899 375 69 ether ether NN 33899 375 70 coming come VBG 33899 375 71 off off RB 33899 375 72 too too RB 33899 375 73 fast fast RB 33899 375 74 . . . 33899 376 1 There there EX 33899 376 2 is be VBZ 33899 376 3 a a DT 33899 376 4 disagreeable disagreeable JJ 33899 376 5 feeling feeling NN 33899 376 6 of of IN 33899 376 7 ' ' `` 33899 376 8 sitting sit VBG 33899 376 9 on on IN 33899 376 10 the the DT 33899 376 11 safety safety NN 33899 376 12 - - HYPH 33899 376 13 valve valve NN 33899 376 14 ' ' '' 33899 376 15 in in IN 33899 376 16 doing do VBG 33899 376 17 this this DT 33899 376 18 , , , 33899 376 19 but but CC 33899 376 20 in in IN 33899 376 21 reality reality NN 33899 376 22 the the DT 33899 376 23 pressure pressure NN 33899 376 24 is be VBZ 33899 376 25 never never RB 33899 376 26 likely likely JJ 33899 376 27 to to TO 33899 376 28 become become VB 33899 376 29 great great JJ 33899 376 30 enough enough RB 33899 376 31 to to TO 33899 376 32 cause cause VB 33899 376 33 danger danger NN 33899 376 34 . . . 33899 377 1 Of of IN 33899 377 2 saturators saturator NNS 33899 377 3 for for IN 33899 377 4 use use NN 33899 377 5 outside outside IN 33899 377 6 the the DT 33899 377 7 lantern lantern NN 33899 377 8 the the DT 33899 377 9 best well RBS 33899 377 10 - - HYPH 33899 377 11 known know VBN 33899 377 12 is be VBZ 33899 377 13 probably probably RB 33899 377 14 the the DT 33899 377 15 ' ' `` 33899 377 16 Pendant Pendant NNP 33899 377 17 ' ' '' 33899 377 18 ( ( -LRB- 33899 377 19 Fig fig NN 33899 377 20 . . . 33899 378 1 22 22 CD 33899 378 2 ) ) -RRB- 33899 378 3 . . . 33899 379 1 With with IN 33899 379 2 this this DT 33899 379 3 instrument instrument NN 33899 379 4 the the DT 33899 379 5 oxygen oxygen NN 33899 379 6 supply supply NN 33899 379 7 is be VBZ 33899 379 8 connected connect VBN 33899 379 9 to to IN 33899 379 10 the the DT 33899 379 11 inlet inlet NN 33899 379 12 marked mark VBN 33899 379 13 A a NN 33899 379 14 ; ; : 33899 379 15 B b NN 33899 379 16 goes go VBZ 33899 379 17 { { -LRB- 33899 379 18 34 34 CD 33899 379 19 } } -RRB- 33899 379 20 direct direct RB 33899 379 21 to to IN 33899 379 22 the the DT 33899 379 23 oxygen oxygen NN 33899 379 24 tap tap NN 33899 379 25 of of IN 33899 379 26 any any DT 33899 379 27 ordinary ordinary JJ 33899 379 28 mixed mixed JJ 33899 379 29 - - HYPH 33899 379 30 gas gas NN 33899 379 31 jet jet NN 33899 379 32 ; ; : 33899 379 33 while while IN 33899 379 34 C C NNP 33899 379 35 , , , 33899 379 36 from from IN 33899 379 37 whence whence NN 33899 379 38 issues issue NNS 33899 379 39 the the DT 33899 379 40 saturated saturate VBN 33899 379 41 stream stream NN 33899 379 42 , , , 33899 379 43 is be VBZ 33899 379 44 connected connect VBN 33899 379 45 to to IN 33899 379 46 the the DT 33899 379 47 coal coal NN 33899 379 48 gas gas NN 33899 379 49 tap tap NN 33899 379 50 of of IN 33899 379 51 the the DT 33899 379 52 jet jet NN 33899 379 53 . . . 33899 380 1 Whichever whichever WDT 33899 380 2 pattern pattern NN 33899 380 3 is be VBZ 33899 380 4 used use VBN 33899 380 5 , , , 33899 380 6 the the DT 33899 380 7 essential essential JJ 33899 380 8 thing thing NN 33899 380 9 is be VBZ 33899 380 10 to to TO 33899 380 11 keep keep VB 33899 380 12 a a DT 33899 380 13 good good JJ 33899 380 14 supply supply NN 33899 380 15 of of IN 33899 380 16 oxygen oxygen NN 33899 380 17 well well RB 33899 380 18 saturated saturate VBN 33899 380 19 . . . 33899 381 1 If if IN 33899 381 2 the the DT 33899 381 3 lime lime NN 33899 381 4 becomes become VBZ 33899 381 5 incandescent incandescent NN 33899 381 6 without without IN 33899 381 7 any any DT 33899 381 8 free free JJ 33899 381 9 oxygen oxygen NN 33899 381 10 , , , 33899 381 11 or or CC 33899 381 12 it -PRON- PRP 33899 381 13 is be VBZ 33899 381 14 found find VBN 33899 381 15 that that IN 33899 381 16 this this DT 33899 381 17 requires require VBZ 33899 381 18 gradually gradually RB 33899 381 19 turning turn VBG 33899 381 20 off off RP 33899 381 21 , , , 33899 381 22 it -PRON- PRP 33899 381 23 indicates indicate VBZ 33899 381 24 that that IN 33899 381 25 the the DT 33899 381 26 saturation saturation NN 33899 381 27 is be VBZ 33899 381 28 becoming become VBG 33899 381 29 defective defective JJ 33899 381 30 , , , 33899 381 31 and and CC 33899 381 32 to to TO 33899 381 33 continue continue VB 33899 381 34 is be VBZ 33899 381 35 to to TO 33899 381 36 risk risk VB 33899 381 37 the the DT 33899 381 38 jet jet NN 33899 381 39 snapping snap VBG 33899 381 40 out out RP 33899 381 41 . . . 33899 382 1 In in IN 33899 382 2 the the DT 33899 382 3 case case NN 33899 382 4 of of IN 33899 382 5 an an DT 33899 382 6 outside outside JJ 33899 382 7 saturator saturator NN 33899 382 8 such such JJ 33899 382 9 as as IN 33899 382 10 the the DT 33899 382 11 ' ' `` 33899 382 12 Pendant Pendant NNP 33899 382 13 , , , 33899 382 14 ' ' '' 33899 382 15 this this DT 33899 382 16 may may MD 33899 382 17 even even RB 33899 382 18 blow blow VB 33899 382 19 off off RP 33899 382 20 the the DT 33899 382 21 connecting connect VBG 33899 382 22 tubes tube NNS 33899 382 23 with with IN 33899 382 24 a a DT 33899 382 25 loud loud JJ 33899 382 26 report report NN 33899 382 27 , , , 33899 382 28 though though IN 33899 382 29 no no DT 33899 382 30 worse bad JJR 33899 382 31 accident accident NN 33899 382 32 is be VBZ 33899 382 33 likely likely JJ 33899 382 34 to to TO 33899 382 35 happen happen VB 33899 382 36 , , , 33899 382 37 and and CC 33899 382 38 for for IN 33899 382 39 this this DT 33899 382 40 reason reason NN 33899 382 41 an an DT 33899 382 42 outside outside JJ 33899 382 43 saturator saturator NN 33899 382 44 should should MD 33899 382 45 be be VB 33899 382 46 placed place VBN 33899 382 47 _ _ NNP 33899 382 48 as as RB 33899 382 49 close close JJ 33899 382 50 _ _ NNP 33899 382 51 to to IN 33899 382 52 the the DT 33899 382 53 jet jet NN 33899 382 54 as as IN 33899 382 55 possible possible JJ 33899 382 56 , , , 33899 382 57 so so IN 33899 382 58 that that IN 33899 382 59 the the DT 33899 382 60 rubber rubber NN 33899 382 61 tube tube NN 33899 382 62 may may MD 33899 382 63 be be VB 33899 382 64 kept keep VBN 33899 382 65 short short JJ 33899 382 66 , , , 33899 382 67 and and CC 33899 382 68 incidentally incidentally RB 33899 382 69 this this DT 33899 382 70 keeps keep VBZ 33899 382 71 the the DT 33899 382 72 saturator saturator NN 33899 382 73 warm warm NNP 33899 382 74 and and CC 33899 382 75 accelerates accelerate VBZ 33899 382 76 vaporisation vaporisation NN 33899 382 77 . . . 33899 383 1 As as IN 33899 383 2 ether ether NN 33899 383 3 vapour vapour NN 33899 383 4 usually usually RB 33899 383 5 contains contain VBZ 33899 383 6 a a DT 33899 383 7 certain certain JJ 33899 383 8 amount amount NN 33899 383 9 of of IN 33899 383 10 moisture moisture NN 33899 383 11 which which WDT 33899 383 12 does do VBZ 33899 383 13 not not RB 33899 383 14 vaporise vaporise VB 33899 383 15 to to IN 33899 383 16 any any DT 33899 383 17 great great JJ 33899 383 18 extent extent NN 33899 383 19 , , , 33899 383 20 this this DT 33899 383 21 gradually gradually RB 33899 383 22 accumulates accumulate VBZ 33899 383 23 and and CC 33899 383 24 the the DT 33899 383 25 capacity capacity NN 33899 383 26 of of IN 33899 383 27 the the DT 33899 383 28 instrument instrument NN 33899 383 29 becomes become VBZ 33899 383 30 reduced reduce VBN 33899 383 31 . . . 33899 384 1 It -PRON- PRP 33899 384 2 is be VBZ 33899 384 3 therefore therefore RB 33899 384 4 usually usually RB 33899 384 5 necessary necessary JJ 33899 384 6 to to TO 33899 384 7 return return VB 33899 384 8 a a DT 33899 384 9 saturator saturator NN 33899 384 10 to to IN 33899 384 11 the the DT 33899 384 12 makers maker NNS 33899 384 13 every every RB 33899 384 14 now now RB 33899 384 15 and and CC 33899 384 16 again again RB 33899 384 17 for for IN 33899 384 18 repacking repacke VBG 33899 384 19 . . . 33899 385 1 The the DT 33899 385 2 only only JJ 33899 385 3 real real JJ 33899 385 4 danger danger NN 33899 385 5 with with IN 33899 385 6 a a DT 33899 385 7 modern modern JJ 33899 385 8 saturator saturator NN 33899 385 9 is be VBZ 33899 385 10 not not RB 33899 385 11 in in IN 33899 385 12 using use VBG 33899 385 13 but but CC 33899 385 14 in in IN 33899 385 15 _ _ NNP 33899 385 16 filling fill VBG 33899 385 17 _ _ NNP 33899 385 18 . . . 33899 386 1 This this DT 33899 386 2 should should MD 33899 386 3 be be VB 33899 386 4 done do VBN 33899 386 5 if if IN 33899 386 6 possible possible JJ 33899 386 7 in in IN 33899 386 8 the the DT 33899 386 9 open open JJ 33899 386 10 air air NN 33899 386 11 , , , 33899 386 12 and and CC 33899 386 13 at at IN 33899 386 14 any any DT 33899 386 15 rate rate NN 33899 386 16 never never RB 33899 386 17 near near IN 33899 386 18 a a DT 33899 386 19 light light NN 33899 386 20 . . . 33899 387 1 Ordinary ordinary JJ 33899 387 2 sulphuric sulphuric JJ 33899 387 3 ether ether NN 33899 387 4 of of IN 33899 387 5 specific specific JJ 33899 387 6 gravity gravity NN 33899 387 7 720 720 CD 33899 387 8 - - SYM 33899 387 9 730 730 CD 33899 387 10 is be VBZ 33899 387 11 usually usually RB 33899 387 12 considered consider VBN 33899 387 13 the the DT 33899 387 14 best good JJS 33899 387 15 , , , 33899 387 16 and and CC 33899 387 17 a a DT 33899 387 18 quarter quarter NN 33899 387 19 of of IN 33899 387 20 a a DT 33899 387 21 pint pint NN 33899 387 22 will will MD 33899 387 23 keep keep VB 33899 387 24 an an DT 33899 387 25 ordinary ordinary JJ 33899 387 26 small small JJ 33899 387 27 - - HYPH 33899 387 28 bore bore NN 33899 387 29 jet jet NN 33899 387 30 going go VBG 33899 387 31 for for IN 33899 387 32 nearly nearly RB 33899 387 33 two two CD 33899 387 34 hours hour NNS 33899 387 35 . . . 33899 388 1 More more RBR 33899 388 2 precise precise JJ 33899 388 3 directions direction NNS 33899 388 4 are be VBP 33899 388 5 usually usually RB 33899 388 6 sent send VBN 33899 388 7 out out RP 33899 388 8 by by IN 33899 388 9 the the DT 33899 388 10 makers maker NNS 33899 388 11 , , , 33899 388 12 and and CC 33899 388 13 as as IN 33899 388 14 the the DT 33899 388 15 various various JJ 33899 388 16 patterns pattern NNS 33899 388 17 of of IN 33899 388 18 saturator saturator NN 33899 388 19 in in IN 33899 388 20 use use NN 33899 388 21 are be VBP 33899 388 22 pretty pretty RB 33899 388 23 numerous numerous JJ 33899 388 24 , , , 33899 388 25 it -PRON- PRP 33899 388 26 would would MD 33899 388 27 be be VB 33899 388 28 useless useless JJ 33899 388 29 here here RB 33899 388 30 to to TO 33899 388 31 attempt attempt VB 33899 388 32 more more RBR 33899 388 33 detailed detailed JJ 33899 388 34 instructions instruction NNS 33899 388 35 for for IN 33899 388 36 working work VBG 33899 388 37 . . . 33899 389 1 OXY OXY NNP 33899 389 2 - - : 33899 389 3 ACETYLENE acetylene RB 33899 389 4 JETS.--Any jets.--any VBP 33899 389 5 good good JJ 33899 389 6 mixed mixed JJ 33899 389 7 gas gas NN 33899 389 8 jet jet NN 33899 389 9 may may MD 33899 389 10 be be VB 33899 389 11 used use VBN 33899 389 12 with with IN 33899 389 13 acetylene acetylene NN 33899 389 14 instead instead RB 33899 389 15 of of IN 33899 389 16 coal coal NN 33899 389 17 gas gas NN 33899 389 18 , , , 33899 389 19 provided provide VBN 33899 389 20 that that IN 33899 389 21 it -PRON- PRP 33899 389 22 is be VBZ 33899 389 23 under under IN 33899 389 24 pressure pressure NN 33899 389 25 more more RBR 33899 389 26 or or CC 33899 389 27 less less RBR 33899 389 28 corresponding corresponding JJ 33899 389 29 to to IN 33899 389 30 that that DT 33899 389 31 from from IN 33899 389 32 an an DT 33899 389 33 oxygen oxygen NN 33899 389 34 cylinder cylinder NN 33899 389 35 , , , 33899 389 36 and and CC 33899 389 37 at at IN 33899 389 38 the the DT 33899 389 39 present present JJ 33899 389 40 day day NN 33899 389 41 there there EX 33899 389 42 is be VBZ 33899 389 43 no no DT 33899 389 44 difficulty difficulty NN 33899 389 45 in in IN 33899 389 46 obtaining obtain VBG 33899 389 47 this this DT 33899 389 48 , , , 33899 389 49 in in IN 33899 389 50 civilised civilised JJ 33899 389 51 countries country NNS 33899 389 52 at at IN 33899 389 53 all all DT 33899 389 54 events event NNS 33899 389 55 , , , 33899 389 56 by by IN 33899 389 57 { { -LRB- 33899 389 58 35 35 CD 33899 389 59 } } -RRB- 33899 389 60 means mean NNS 33899 389 61 of of IN 33899 389 62 compressed compress VBN 33899 389 63 or or CC 33899 389 64 , , , 33899 389 65 to to TO 33899 389 66 speak speak VB 33899 389 67 more more RBR 33899 389 68 correctly correctly RB 33899 389 69 , , , 33899 389 70 ' ' '' 33899 389 71 dissolved dissolve VBN 33899 389 72 ' ' '' 33899 389 73 acetylene acetylene NN 33899 389 74 cylinders cylinder NNS 33899 389 75 , , , 33899 389 76 referred refer VBD 33899 389 77 to to TO 33899 389 78 later later RB 33899 389 79 on on RB 33899 389 80 . . . 33899 390 1 With with IN 33899 390 2 an an DT 33899 390 3 ' ' `` 33899 390 4 Injector injector NN 33899 390 5 ' ' '' 33899 390 6 jet jet NN 33899 390 7 there there EX 33899 390 8 is be VBZ 33899 390 9 no no DT 33899 390 10 need need NN 33899 390 11 for for IN 33899 390 12 the the DT 33899 390 13 acetylene acetylene NN 33899 390 14 gas gas NN 33899 390 15 to to TO 33899 390 16 be be VB 33899 390 17 under under IN 33899 390 18 pressure pressure NN 33899 390 19 at at RB 33899 390 20 all all RB 33899 390 21 , , , 33899 390 22 and and CC 33899 390 23 a a DT 33899 390 24 simple simple JJ 33899 390 25 generator generator NN 33899 390 26 such such JJ 33899 390 27 as as IN 33899 390 28 described describe VBN 33899 390 29 on on IN 33899 390 30 page page NN 33899 390 31 12 12 CD 33899 390 32 will will MD 33899 390 33 answer answer VB 33899 390 34 perfectly perfectly RB 33899 390 35 , , , 33899 390 36 though though IN 33899 390 37 in in IN 33899 390 38 practice practice NN 33899 390 39 very very RB 33899 390 40 seldom seldom RB 33899 390 41 used use VBN 33899 390 42 . . . 33899 391 1 With with IN 33899 391 2 such such PDT 33899 391 3 a a DT 33899 391 4 generator generator NN 33899 391 5 the the DT 33899 391 6 pressure pressure NN 33899 391 7 is be VBZ 33899 391 8 so so RB 33899 391 9 low low JJ 33899 391 10 that that IN 33899 391 11 in in IN 33899 391 12 many many JJ 33899 391 13 cases case NNS 33899 391 14 the the DT 33899 391 15 jet jet NN 33899 391 16 will will MD 33899 391 17 not not RB 33899 391 18 even even RB 33899 391 19 burn burn VB 33899 391 20 until until IN 33899 391 21 _ _ NNP 33899 391 22 some some DT 33899 391 23 _ _ NNP 33899 391 24 oxygen oxygen NN 33899 391 25 is be VBZ 33899 391 26 turned turn VBN 33899 391 27 on on RP 33899 391 28 ; ; : 33899 391 29 but but CC 33899 391 30 this this DT 33899 391 31 introduces introduce VBZ 33899 391 32 no no DT 33899 391 33 real real JJ 33899 391 34 difficulty difficulty NN 33899 391 35 , , , 33899 391 36 as as IN 33899 391 37 with with IN 33899 391 38 a a DT 33899 391 39 good good JJ 33899 391 40 ' ' `` 33899 391 41 Injector injector NN 33899 391 42 ' ' '' 33899 391 43 a a DT 33899 391 44 snap snap NN 33899 391 45 is be VBZ 33899 391 46 practically practically RB 33899 391 47 impossible impossible JJ 33899 391 48 , , , 33899 391 49 provided provide VBN 33899 391 50 the the DT 33899 391 51 generator generator NN 33899 391 52 is be VBZ 33899 391 53 large large JJ 33899 391 54 enough enough RB 33899 391 55 to to TO 33899 391 56 evolve evolve VB 33899 391 57 sufficient sufficient JJ 33899 391 58 acetylene acetylene NN 33899 391 59 . . . 33899 392 1 It -PRON- PRP 33899 392 2 is be VBZ 33899 392 3 far far RB 33899 392 4 better well JJR 33899 392 5 in in IN 33899 392 6 every every DT 33899 392 7 way way NN 33899 392 8 , , , 33899 392 9 however however RB 33899 392 10 , , , 33899 392 11 to to TO 33899 392 12 use use VB 33899 392 13 the the DT 33899 392 14 acetylene acetylene NN 33899 392 15 from from IN 33899 392 16 a a DT 33899 392 17 cylinder cylinder NN 33899 392 18 , , , 33899 392 19 just just RB 33899 392 20 as as IN 33899 392 21 with with IN 33899 392 22 coal coal NN 33899 392 23 gas gas NN 33899 392 24 . . . 33899 393 1 Only only RB 33899 393 2 in in IN 33899 393 3 this this DT 33899 393 4 case case NN 33899 393 5 the the DT 33899 393 6 cylinder cylinder NN 33899 393 7 is be VBZ 33899 393 8 completely completely RB 33899 393 9 filled fill VBN 33899 393 10 with with IN 33899 393 11 a a DT 33899 393 12 porous porous JJ 33899 393 13 material material NN 33899 393 14 , , , 33899 393 15 and and CC 33899 393 16 this this DT 33899 393 17 again again RB 33899 393 18 filled fill VBN 33899 393 19 with with IN 33899 393 20 liquid liquid JJ 33899 393 21 acetone acetone NN 33899 393 22 or or CC 33899 393 23 other other JJ 33899 393 24 suitable suitable JJ 33899 393 25 fluid fluid NN 33899 393 26 , , , 33899 393 27 in in IN 33899 393 28 which which WDT 33899 393 29 the the DT 33899 393 30 acetylene acetylene NN 33899 393 31 is be VBZ 33899 393 32 dissolved dissolve VBN 33899 393 33 as as RB 33899 393 34 rapidly rapidly RB 33899 393 35 as as IN 33899 393 36 it -PRON- PRP 33899 393 37 is be VBZ 33899 393 38 pumped pump VBN 33899 393 39 into into IN 33899 393 40 the the DT 33899 393 41 cylinder cylinder NN 33899 393 42 . . . 33899 394 1 To to TO 33899 394 2 compress compress VB 33899 394 3 acetylene acetylene NN 33899 394 4 in in IN 33899 394 5 the the DT 33899 394 6 ordinary ordinary JJ 33899 394 7 way way NN 33899 394 8 is be VBZ 33899 394 9 neither neither CC 33899 394 10 safe safe JJ 33899 394 11 nor nor CC 33899 394 12 practicable practicable JJ 33899 394 13 ; ; : 33899 394 14 but but CC 33899 394 15 these these DT 33899 394 16 ' ' `` 33899 394 17 dissolved dissolve VBN 33899 394 18 ' ' '' 33899 394 19 cylinders cylinder NNS 33899 394 20 are be VBP 33899 394 21 now now RB 33899 394 22 used use VBN 33899 394 23 extensively extensively RB 33899 394 24 for for IN 33899 394 25 both both DT 33899 394 26 oxy oxy NN 33899 394 27 - - HYPH 33899 394 28 acetylene acetylene NN 33899 394 29 welding welding NN 33899 394 30 and and CC 33899 394 31 motor motor NN 33899 394 32 car car NN 33899 394 33 lighting lighting NN 33899 394 34 , , , 33899 394 35 and and CC 33899 394 36 may may MD 33899 394 37 be be VB 33899 394 38 entirely entirely RB 33899 394 39 relied rely VBN 33899 394 40 upon upon IN 33899 394 41 . . . 33899 395 1 The the DT 33899 395 2 D.A. D.A. NNP 33899 396 1 ( ( -LRB- 33899 396 2 Dissolved Dissolved NNP 33899 396 3 Acetylene Acetylene NNP 33899 396 4 ) ) -RRB- 33899 396 5 Company Company NNP 33899 396 6 were be VBD 33899 396 7 the the DT 33899 396 8 pioneers pioneer NNS 33899 396 9 in in IN 33899 396 10 this this DT 33899 396 11 country country NN 33899 396 12 of of IN 33899 396 13 the the DT 33899 396 14 industry industry NN 33899 396 15 , , , 33899 396 16 and and CC 33899 396 17 their -PRON- PRP$ 33899 396 18 methods method NNS 33899 396 19 of of IN 33899 396 20 business business NN 33899 396 21 are be VBP 33899 396 22 peculiar peculiar JJ 33899 396 23 and and CC 33899 396 24 ingenious ingenious JJ 33899 396 25 . . . 33899 397 1 The the DT 33899 397 2 user user NN 33899 397 3 is be VBZ 33899 397 4 requested request VBN 33899 397 5 in in IN 33899 397 6 the the DT 33899 397 7 first first JJ 33899 397 8 place place NN 33899 397 9 to to TO 33899 397 10 purchase purchase VB 33899 397 11 a a DT 33899 397 12 cylinder cylinder NN 33899 397 13 , , , 33899 397 14 and and CC 33899 397 15 he -PRON- PRP 33899 397 16 then then RB 33899 397 17 becomes become VBZ 33899 397 18 the the DT 33899 397 19 owner owner NN 33899 397 20 of of IN 33899 397 21 _ _ NNP 33899 397 22 a a DT 33899 397 23 _ _ NNP 33899 397 24 cylinder cylinder NN 33899 397 25 , , , 33899 397 26 but but CC 33899 397 27 not not RB 33899 397 28 of of IN 33899 397 29 one one CD 33899 397 30 _ _ NNP 33899 397 31 particular particular JJ 33899 397 32 _ _ NNP 33899 397 33 cylinder cylinder NN 33899 397 34 . . . 33899 398 1 A a DT 33899 398 2 list list NN 33899 398 3 is be VBZ 33899 398 4 supplied supply VBN 33899 398 5 to to IN 33899 398 6 him -PRON- PRP 33899 398 7 of of IN 33899 398 8 various various JJ 33899 398 9 depots depot NNS 33899 398 10 in in IN 33899 398 11 the the DT 33899 398 12 country country NN 33899 398 13 where where WRB 33899 398 14 the the DT 33899 398 15 Company Company NNP 33899 398 16 's 's POS 33899 398 17 cylinders cylinder NNS 33899 398 18 are be VBP 33899 398 19 stored store VBN 33899 398 20 , , , 33899 398 21 and and CC 33899 398 22 when when WRB 33899 398 23 empty empty JJ 33899 398 24 he -PRON- PRP 33899 398 25 can can MD 33899 398 26 , , , 33899 398 27 on on IN 33899 398 28 payment payment NN 33899 398 29 of of IN 33899 398 30 a a DT 33899 398 31 fixed fix VBN 33899 398 32 sum sum NN 33899 398 33 , , , 33899 398 34 exchange exchange VB 33899 398 35 his -PRON- PRP$ 33899 398 36 empty empty JJ 33899 398 37 cylinder cylinder NN 33899 398 38 for for IN 33899 398 39 a a DT 33899 398 40 full full JJ 33899 398 41 one one CD 33899 398 42 , , , 33899 398 43 which which WDT 33899 398 44 then then RB 33899 398 45 becomes become VBZ 33899 398 46 _ _ NNP 33899 398 47 his -PRON- PRP$ 33899 398 48 _ _ NNP 33899 398 49 cylinder cylinder NN 33899 398 50 _ _ NNP 33899 398 51 pro pro JJ 33899 398 52 tem tem NN 33899 398 53 _ _ NNP 33899 398 54 . . . 33899 399 1 This this DT 33899 399 2 saves save VBZ 33899 399 3 the the DT 33899 399 4 delay delay NN 33899 399 5 and and CC 33899 399 6 expense expense NN 33899 399 7 of of IN 33899 399 8 returning return VBG 33899 399 9 a a DT 33899 399 10 cylinder cylinder NN 33899 399 11 to to IN 33899 399 12 London London NNP 33899 399 13 , , , 33899 399 14 and and CC 33899 399 15 incidentally incidentally RB 33899 399 16 clears clear VBZ 33899 399 17 the the DT 33899 399 18 customer customer NN 33899 399 19 of of IN 33899 399 20 any any DT 33899 399 21 question question NN 33899 399 22 of of IN 33899 399 23 deterioration deterioration NN 33899 399 24 , , , 33899 399 25 this this DT 33899 399 26 being be VBG 33899 399 27 obviously obviously RB 33899 399 28 covered cover VBN 33899 399 29 by by IN 33899 399 30 degrees degree NNS 33899 399 31 with with IN 33899 399 32 each each DT 33899 399 33 individual individual JJ 33899 399 34 exchange exchange NN 33899 399 35 . . . 33899 400 1 The the DT 33899 400 2 system system NN 33899 400 3 was be VBD 33899 400 4 first first RB 33899 400 5 introduced introduce VBN 33899 400 6 in in IN 33899 400 7 connection connection NN 33899 400 8 with with IN 33899 400 9 the the DT 33899 400 10 lighting lighting NN 33899 400 11 of of IN 33899 400 12 cars car NNS 33899 400 13 and and CC 33899 400 14 only only RB 33899 400 15 applies apply VBZ 33899 400 16 to to IN 33899 400 17 the the DT 33899 400 18 standard standard JJ 33899 400 19 size size NN 33899 400 20 for for IN 33899 400 21 this this DT 33899 400 22 purpose purpose NN 33899 400 23 , , , 33899 400 24 viz viz NN 33899 400 25 . . . 33899 401 1 20 20 CD 33899 401 2 cubic cubic JJ 33899 401 3 feet foot NNS 33899 401 4 capacity capacity NN 33899 401 5 , , , 33899 401 6 { { -LRB- 33899 401 7 36 36 CD 33899 401 8 } } -RRB- 33899 401 9 but but CC 33899 401 10 as as IN 33899 401 11 this this DT 33899 401 12 is be VBZ 33899 401 13 , , , 33899 401 14 on on IN 33899 401 15 the the DT 33899 401 16 whole whole NN 33899 401 17 , , , 33899 401 18 the the DT 33899 401 19 most most RBS 33899 401 20 convenient convenient JJ 33899 401 21 size size NN 33899 401 22 for for IN 33899 401 23 lantern lantern NNP 33899 401 24 work work NN 33899 401 25 also also RB 33899 401 26 , , , 33899 401 27 the the DT 33899 401 28 limitation limitation NN 33899 401 29 is be VBZ 33899 401 30 not not RB 33899 401 31 a a DT 33899 401 32 disadvantage disadvantage NN 33899 401 33 . . . 33899 402 1 The the DT 33899 402 2 arrangement arrangement NN 33899 402 3 is be VBZ 33899 402 4 also also RB 33899 402 5 in in IN 33899 402 6 vogue vogue NN 33899 402 7 to to IN 33899 402 8 a a DT 33899 402 9 less less JJR 33899 402 10 extent extent NN 33899 402 11 with with IN 33899 402 12 cylinders cylinder NNS 33899 402 13 of of IN 33899 402 14 6 6 CD 33899 402 15 feet foot NNS 33899 402 16 capacity capacity NN 33899 402 17 ( ( -LRB- 33899 402 18 a a DT 33899 402 19 size size NN 33899 402 20 sometimes sometimes RB 33899 402 21 used use VBN 33899 402 22 for for IN 33899 402 23 motor motor NN 33899 402 24 _ _ NNP 33899 402 25 cycles cycle NNS 33899 402 26 _ _ NNP 33899 402 27 ) ) -RRB- 33899 402 28 , , , 33899 402 29 but but CC 33899 402 30 the the DT 33899 402 31 depots depot NNS 33899 402 32 of of IN 33899 402 33 exchange exchange NN 33899 402 34 are be VBP 33899 402 35 at at IN 33899 402 36 present present JJ 33899 402 37 far far RB 33899 402 38 fewer few JJR 33899 402 39 for for IN 33899 402 40 this this DT 33899 402 41 size size NN 33899 402 42 . . . 33899 403 1 The the DT 33899 403 2 oxy oxy JJ 33899 403 3 - - HYPH 33899 403 4 acetylene acetylene NN 33899 403 5 blast blast NN 33899 403 6 is be VBZ 33899 403 7 much much JJ 33899 403 8 _ _ NNP 33899 403 9 hotter hotter NN 33899 403 10 _ _ NNP 33899 403 11 than than IN 33899 403 12 the the DT 33899 403 13 ordinary ordinary JJ 33899 403 14 oxyhydrogen oxyhydrogen NN 33899 403 15 , , , 33899 403 16 and and CC 33899 403 17 therefore therefore RB 33899 403 18 produces produce VBZ 33899 403 19 a a DT 33899 403 20 more more RBR 33899 403 21 intense intense JJ 33899 403 22 light light NN 33899 403 23 . . . 33899 404 1 I -PRON- PRP 33899 404 2 have have VBP 33899 404 3 therefore therefore RB 33899 404 4 used use VBN 33899 404 5 it -PRON- PRP 33899 404 6 with with IN 33899 404 7 success success NN 33899 404 8 on on IN 33899 404 9 occasions occasion NNS 33899 404 10 when when WRB 33899 404 11 even even RB 33899 404 12 the the DT 33899 404 13 ordinary ordinary JJ 33899 404 14 limelight limelight NN 33899 404 15 would would MD 33899 404 16 fail fail VB 33899 404 17 , , , 33899 404 18 and and CC 33899 404 19 the the DT 33899 404 20 choice choice NN 33899 404 21 has have VBZ 33899 404 22 lain lie VBN 33899 404 23 between between IN 33899 404 24 an an DT 33899 404 25 oxyhydrogen oxyhydrogen NN 33899 404 26 jet jet NN 33899 404 27 of of IN 33899 404 28 enormous enormous JJ 33899 404 29 bore bore NN 33899 404 30 ( ( -LRB- 33899 404 31 and and CC 33899 404 32 , , , 33899 404 33 of of IN 33899 404 34 course course NN 33899 404 35 , , , 33899 404 36 corresponding correspond VBG 33899 404 37 consumption consumption NN 33899 404 38 of of IN 33899 404 39 gas gas NN 33899 404 40 ) ) -RRB- 33899 404 41 , , , 33899 404 42 and and CC 33899 404 43 the the DT 33899 404 44 oxy oxy NN 33899 404 45 - - HYPH 33899 404 46 acetylene acetylene NN 33899 404 47 . . . 33899 405 1 For for IN 33899 405 2 this this DT 33899 405 3 very very JJ 33899 405 4 reason reason NN 33899 405 5 great great JJ 33899 405 6 care care NN 33899 405 7 must must MD 33899 405 8 be be VB 33899 405 9 taken take VBN 33899 405 10 only only RB 33899 405 11 to to TO 33899 405 12 use use VB 33899 405 13 the the DT 33899 405 14 hardest hard JJS 33899 405 15 limes lime NNS 33899 405 16 , , , 33899 405 17 and and CC 33899 405 18 even even RB 33899 405 19 then then RB 33899 405 20 to to TO 33899 405 21 use use VB 33899 405 22 the the DT 33899 405 23 lime lime RB 33899 405 24 - - HYPH 33899 405 25 turning turn VBG 33899 405 26 movement movement NN 33899 405 27 frequently frequently RB 33899 405 28 , , , 33899 405 29 or or CC 33899 405 30 the the DT 33899 405 31 lime lime NN 33899 405 32 will will MD 33899 405 33 pit pit VB 33899 405 34 or or CC 33899 405 35 crack crack VB 33899 405 36 and and CC 33899 405 37 a a DT 33899 405 38 broken broken JJ 33899 405 39 condenser condenser NN 33899 405 40 follow follow NN 33899 405 41 . . . 33899 406 1 THE the DT 33899 406 2 FALLOT FALLOT NNP 33899 406 3 ACETYLENE acetylene RB 33899 406 4 LIGHT.--This light.--this DT 33899 406 5 light light NN 33899 406 6 consists consist VBZ 33899 406 7 of of IN 33899 406 8 a a DT 33899 406 9 jet jet NN 33899 406 10 of of IN 33899 406 11 acetylene acetylene NN 33899 406 12 under under IN 33899 406 13 pressure pressure NN 33899 406 14 , , , 33899 406 15 without without IN 33899 406 16 oxygen oxygen NN 33899 406 17 , , , 33899 406 18 but but CC 33899 406 19 producing produce VBG 33899 406 20 its -PRON- PRP$ 33899 406 21 own own JJ 33899 406 22 _ _ NNP 33899 406 23 air air NN 33899 406 24 blast blast NN 33899 406 25 _ _ NNP 33899 406 26 from from IN 33899 406 27 the the DT 33899 406 28 atmosphere atmosphere NN 33899 406 29 by by IN 33899 406 30 suction suction NN 33899 406 31 , , , 33899 406 32 much much RB 33899 406 33 as as IN 33899 406 34 the the DT 33899 406 35 ' ' `` 33899 406 36 Injector injector NN 33899 406 37 ' ' '' 33899 406 38 jet jet NN 33899 406 39 does do VBZ 33899 406 40 , , , 33899 406 41 but but CC 33899 406 42 the the DT 33899 406 43 reverse reverse JJ 33899 406 44 way way NN 33899 406 45 round round RB 33899 406 46 . . . 33899 407 1 The the DT 33899 407 2 light light NN 33899 407 3 is be VBZ 33899 407 4 better well JJR 33899 407 5 than than IN 33899 407 6 with with IN 33899 407 7 an an DT 33899 407 8 ordinary ordinary JJ 33899 407 9 acetylene acetylene NN 33899 407 10 jet jet NN 33899 407 11 , , , 33899 407 12 though though IN 33899 407 13 not not RB 33899 407 14 quite quite RB 33899 407 15 so so RB 33899 407 16 good good JJ 33899 407 17 as as IN 33899 407 18 with with IN 33899 407 19 a a DT 33899 407 20 ' ' `` 33899 407 21 blow blow NN 33899 407 22 - - HYPH 33899 407 23 through through IN 33899 407 24 ' ' '' 33899 407 25 jet jet NN 33899 407 26 ; ; : 33899 407 27 but but CC 33899 407 28 as as IN 33899 407 29 it -PRON- PRP 33899 407 30 only only RB 33899 407 31 requires require VBZ 33899 407 32 a a DT 33899 407 33 cylinder cylinder NN 33899 407 34 of of IN 33899 407 35 dissolved dissolve VBN 33899 407 36 acetylene acetylene NN 33899 407 37 , , , 33899 407 38 or or CC 33899 407 39 even even RB 33899 407 40 a a DT 33899 407 41 ' ' `` 33899 407 42 Pressure pressure NN 33899 407 43 ' ' '' 33899 407 44 generator generator NN 33899 407 45 , , , 33899 407 46 it -PRON- PRP 33899 407 47 is be VBZ 33899 407 48 fast fast JJ 33899 407 49 coming come VBG 33899 407 50 into into IN 33899 407 51 favour favour NN 33899 407 52 . . . 33899 408 1 The the DT 33899 408 2 peculiarity peculiarity NN 33899 408 3 of of IN 33899 408 4 the the DT 33899 408 5 Fallot Fallot NNP 33899 408 6 apparatus apparatus NN 33899 408 7 is be VBZ 33899 408 8 that that IN 33899 408 9 , , , 33899 408 10 instead instead RB 33899 408 11 of of IN 33899 408 12 providing provide VBG 33899 408 13 a a DT 33899 408 14 direct direct JJ 33899 408 15 beam beam NN 33899 408 16 of of IN 33899 408 17 light light NN 33899 408 18 in in IN 33899 408 19 the the DT 33899 408 20 direction direction NN 33899 408 21 of of IN 33899 408 22 the the DT 33899 408 23 screen screen NN 33899 408 24 , , , 33899 408 25 it -PRON- PRP 33899 408 26 projects project VBZ 33899 408 27 the the DT 33899 408 28 beam beam NN 33899 408 29 _ _ NNP 33899 408 30 backwards backwards IN 33899 408 31 _ _ NNP 33899 408 32 on on IN 33899 408 33 to to IN 33899 408 34 a a DT 33899 408 35 concave concave NNP 33899 408 36 mirror mirror NN 33899 408 37 , , , 33899 408 38 and and CC 33899 408 39 it -PRON- PRP 33899 408 40 is be VBZ 33899 408 41 the the DT 33899 408 42 reflected reflected JJ 33899 408 43 light light NN 33899 408 44 from from IN 33899 408 45 this this DT 33899 408 46 that that WDT 33899 408 47 is be VBZ 33899 408 48 used use VBN 33899 408 49 ( ( -LRB- 33899 408 50 Fig fig NN 33899 408 51 . . . 33899 409 1 23 23 CD 33899 409 2 ) ) -RRB- 33899 409 3 . . . 33899 410 1 Instead instead RB 33899 410 2 of of IN 33899 410 3 a a DT 33899 410 4 lime lime NN 33899 410 5 is be VBZ 33899 410 6 used use VBN 33899 410 7 a a DT 33899 410 8 spherical spherical JJ 33899 410 9 ' ' `` 33899 410 10 Pastille Pastille NNP 33899 410 11 ' ' '' 33899 410 12 of of IN 33899 410 13 peculiar peculiar JJ 33899 410 14 composition composition NN 33899 410 15 , , , 33899 410 16 and and CC 33899 410 17 before before IN 33899 410 18 use use VBP 33899 410 19 each each DT 33899 410 20 pastille pastille NN 33899 410 21 must must MD 33899 410 22 be be VB 33899 410 23 burnt burn VBN 33899 410 24 off off RP 33899 410 25 exactly exactly RB 33899 410 26 like like IN 33899 410 27 an an DT 33899 410 28 incandescent incandescent JJ 33899 410 29 gas gas NN 33899 410 30 mantle mantle NN 33899 410 31 , , , 33899 410 32 after after IN 33899 410 33 which which WDT 33899 410 34 it -PRON- PRP 33899 410 35 is be VBZ 33899 410 36 extremely extremely RB 33899 410 37 fragile fragile JJ 33899 410 38 and and CC 33899 410 39 difficult difficult JJ 33899 410 40 to to TO 33899 410 41 handle handle VB 33899 410 42 . . . 33899 411 1 To to TO 33899 411 2 use use VB 33899 411 3 this this DT 33899 411 4 illuminant illuminant JJ 33899 411 5 one one CD 33899 411 6 lens lens NN 33899 411 7 of of IN 33899 411 8 the the DT 33899 411 9 condenser condenser NN 33899 411 10 must must MD 33899 411 11 be be VB 33899 411 12 removed remove VBN 33899 411 13 , , , 33899 411 14 the the DT 33899 411 15 curvature curvature NN 33899 411 16 of of IN 33899 411 17 the the DT 33899 411 18 mirror mirror NN 33899 411 19 taking take VBG 33899 411 20 its -PRON- PRP$ 33899 411 21 place place NN 33899 411 22 , , , 33899 411 23 and and CC 33899 411 24 it -PRON- PRP 33899 411 25 will will MD 33899 411 26 be be VB 33899 411 27 seen see VBN 33899 411 28 at at IN 33899 411 29 once once RB 33899 411 30 that that IN 33899 411 31 the the DT 33899 411 32 pastille pastille NNP 33899 411 33 itself -PRON- PRP 33899 411 34 will will MD 33899 411 35 get get VB 33899 411 36 in in IN 33899 411 37 its -PRON- PRP$ 33899 411 38 own own JJ 33899 411 39 { { -LRB- 33899 411 40 37 37 CD 33899 411 41 } } -RRB- 33899 411 42 light light NN 33899 411 43 and and CC 33899 411 44 throw throw VB 33899 411 45 a a DT 33899 411 46 shadow shadow NN 33899 411 47 , , , 33899 411 48 which which WDT 33899 411 49 actually actually RB 33899 411 50 happens happen VBZ 33899 411 51 , , , 33899 411 52 but but CC 33899 411 53 it -PRON- PRP 33899 411 54 is be VBZ 33899 411 55 hardly hardly RB 33899 411 56 perceptible perceptible JJ 33899 411 57 unless unless IN 33899 411 58 specially specially RB 33899 411 59 looked look VBN 33899 411 60 for for IN 33899 411 61 . . . 33899 412 1 [ [ -LRB- 33899 412 2 Illustration illustration NN 33899 412 3 : : : 33899 412 4 FIG FIG NNP 33899 412 5 . . . 33899 413 1 23.--Fallot 23.--fallot CD 33899 413 2 Air Air NNP 33899 413 3 Blast Blast NNP 33899 413 4 . . . 33899 413 5 ] ] -RRB- 33899 414 1 A a DT 33899 414 2 complete complete JJ 33899 414 3 Fallot Fallot NNP 33899 414 4 Air Air NNP 33899 414 5 Blast Blast NNP 33899 414 6 Outfit Outfit NNP 33899 414 7 , , , 33899 414 8 with with IN 33899 414 9 cylinder cylinder NN 33899 414 10 , , , 33899 414 11 fine fine JJ 33899 414 12 adjustment adjustment NN 33899 414 13 valve valve NN 33899 414 14 , , , 33899 414 15 pressure pressure NN 33899 414 16 gauge gauge NN 33899 414 17 and and CC 33899 414 18 burner burner NN 33899 414 19 , , , 33899 414 20 with with IN 33899 414 21 two two CD 33899 414 22 spare spare JJ 33899 414 23 pastilles pastille NNS 33899 414 24 , , , 33899 414 25 is be VBZ 33899 414 26 shown show VBN 33899 414 27 in in IN 33899 414 28 Fig Fig NNP 33899 414 29 . . . 33899 415 1 24 24 CD 33899 415 2 , , , 33899 415 3 but but CC 33899 415 4 if if IN 33899 415 5 preferred prefer VBN 33899 415 6 a a DT 33899 415 7 regulator regulator NN 33899 415 8 , , , 33899 415 9 such such JJ 33899 415 10 as as IN 33899 415 11 previously previously RB 33899 415 12 described describe VBN 33899 415 13 for for IN 33899 415 14 oxygen oxygen NN 33899 415 15 , , , 33899 415 16 can can MD 33899 415 17 be be VB 33899 415 18 used use VBN 33899 415 19 instead instead RB 33899 415 20 of of IN 33899 415 21 the the DT 33899 415 22 fine fine JJ 33899 415 23 adjustment adjustment NN 33899 415 24 valve valve NN 33899 415 25 . . . 33899 416 1 [ [ -LRB- 33899 416 2 Illustration illustration NN 33899 416 3 : : : 33899 416 4 FIG FIG NNP 33899 416 5 . . . 33899 417 1 24.--Fallot 24.--fallot CD 33899 417 2 Air Air NNP 33899 417 3 Blast Blast NNP 33899 417 4 , , , 33899 417 5 and and CC 33899 417 6 Cylinder Cylinder NNP 33899 417 7 . . . 33899 417 8 ] ] -RRB- 33899 418 1 { { -LRB- 33899 418 2 38 38 CD 33899 418 3 } } -RRB- 33899 418 4 FALLOT FALLOT NNP 33899 418 5 OXY oxy NN 33899 418 6 - - , 33899 418 7 ACETYLENE acetylene RB 33899 418 8 BLAST.--This blast.--this PRP 33899 418 9 is be VBZ 33899 418 10 similar similar JJ 33899 418 11 to to IN 33899 418 12 the the DT 33899 418 13 foregoing foregoing NN 33899 418 14 , , , 33899 418 15 utilising utilise VBG 33899 418 16 oxygen oxygen NN 33899 418 17 from from IN 33899 418 18 a a DT 33899 418 19 cylinder cylinder NN 33899 418 20 instead instead RB 33899 418 21 of of IN 33899 418 22 air air NN 33899 418 23 , , , 33899 418 24 and and CC 33899 418 25 the the DT 33899 418 26 light light NN 33899 418 27 is be VBZ 33899 418 28 equal equal JJ 33899 418 29 to to IN 33899 418 30 a a DT 33899 418 31 powerful powerful JJ 33899 418 32 limelight limelight NN 33899 418 33 , , , 33899 418 34 and and CC 33899 418 35 may may MD 33899 418 36 be be VB 33899 418 37 considered consider VBN 33899 418 38 as as IN 33899 418 39 an an DT 33899 418 40 efficient efficient JJ 33899 418 41 substitute substitute NN 33899 418 42 , , , 33899 418 43 though though IN 33899 418 44 for for IN 33899 418 45 _ _ NNP 33899 418 46 long long JJ 33899 418 47 range range NN 33899 418 48 _ _ NNP 33899 418 49 work work NN 33899 418 50 the the DT 33899 418 51 shadow shadow NN 33899 418 52 before before IN 33899 418 53 alluded allude VBN 33899 418 54 to to IN 33899 418 55 becomes become VBZ 33899 418 56 more more RBR 33899 418 57 noticeable noticeable JJ 33899 418 58 ( ( -LRB- 33899 418 59 for for IN 33899 418 60 optical optical JJ 33899 418 61 reasons reason NNS 33899 418 62 which which WDT 33899 418 63 need need VBP 33899 418 64 not not RB 33899 418 65 be be VB 33899 418 66 here here RB 33899 418 67 discussed discuss VBN 33899 418 68 ) ) -RRB- 33899 418 69 . . . 33899 419 1 The the DT 33899 419 2 Fallot Fallot NNP 33899 419 3 Company Company NNP 33899 419 4 also also RB 33899 419 5 make make VBP 33899 419 6 a a DT 33899 419 7 special special JJ 33899 419 8 ' ' `` 33899 419 9 Pressure Pressure NNP 33899 419 10 Generator Generator NNP 33899 419 11 ' ' '' 33899 419 12 which which WDT 33899 419 13 can can MD 33899 419 14 be be VB 33899 419 15 used use VBN 33899 419 16 instead instead RB 33899 419 17 of of IN 33899 419 18 a a DT 33899 419 19 D.A. D.A. NNP 33899 420 1 Cylinder cylinder NN 33899 420 2 ; ; : 33899 420 3 but but CC 33899 420 4 my -PRON- PRP$ 33899 420 5 experience experience NN 33899 420 6 of of IN 33899 420 7 this this DT 33899 420 8 so so RB 33899 420 9 far far RB 33899 420 10 is be VBZ 33899 420 11 that that IN 33899 420 12 , , , 33899 420 13 although although IN 33899 420 14 perfectly perfectly RB 33899 420 15 safe safe JJ 33899 420 16 , , , 33899 420 17 the the DT 33899 420 18 blast blast NN 33899 420 19 from from IN 33899 420 20 it -PRON- PRP 33899 420 21 is be VBZ 33899 420 22 a a DT 33899 420 23 little little JJ 33899 420 24 unsteady unsteady JJ 33899 420 25 as as IN 33899 420 26 compared compare VBN 33899 420 27 with with IN 33899 420 28 a a DT 33899 420 29 cylinder cylinder NN 33899 420 30 . . . 33899 421 1 LIMES limes NN 33899 421 2 AND and CC 33899 421 3 ACCESSORIES.--Limes accessories.--lime NNS 33899 421 4 for for IN 33899 421 5 Optical Optical NNP 33899 421 6 Lantern Lantern NNP 33899 421 7 work work NN 33899 421 8 are be VBP 33899 421 9 usually usually RB 33899 421 10 supplied supply VBN 33899 421 11 in in IN 33899 421 12 the the DT 33899 421 13 form form NN 33899 421 14 of of IN 33899 421 15 cylinders cylinder NNS 33899 421 16 , , , 33899 421 17 the the DT 33899 421 18 ' ' `` 33899 421 19 ordinary ordinary JJ 33899 421 20 ' ' '' 33899 421 21 size size NN 33899 421 22 being be VBG 33899 421 23 7/8 7/8 CD 33899 421 24 inch inch NN 33899 421 25 in in IN 33899 421 26 diameter diameter NN 33899 421 27 and and CC 33899 421 28 about about IN 33899 421 29 1½ 1½ NNP 33899 421 30 inches inch NNS 33899 421 31 long long JJ 33899 421 32 , , , 33899 421 33 with with IN 33899 421 34 a a DT 33899 421 35 hole hole NN 33899 421 36 drilled drill VBD 33899 421 37 longitudinally longitudinally RB 33899 421 38 to to TO 33899 421 39 take take VB 33899 421 40 the the DT 33899 421 41 lime lime NN 33899 421 42 pin pin NN 33899 421 43 . . . 33899 422 1 Extra extra JJ 33899 422 2 large large JJ 33899 422 3 limes lime NNS 33899 422 4 up up IN 33899 422 5 to to IN 33899 422 6 2 2 CD 33899 422 7 inches inch NNS 33899 422 8 in in IN 33899 422 9 diameter diameter NN 33899 422 10 are be VBP 33899 422 11 supplied supply VBN 33899 422 12 for for IN 33899 422 13 more more RBR 33899 422 14 powerful powerful JJ 33899 422 15 jets jet NNS 33899 422 16 . . . 33899 423 1 So so RB 33899 423 2 - - HYPH 33899 423 3 called call VBN 33899 423 4 ' ' `` 33899 423 5 soft soft JJ 33899 423 6 ' ' '' 33899 423 7 limes lime NNS 33899 423 8 used use VBN 33899 423 9 to to TO 33899 423 10 be be VB 33899 423 11 recommended recommend VBN 33899 423 12 for for IN 33899 423 13 ' ' `` 33899 423 14 blow blow NN 33899 423 15 - - HYPH 33899 423 16 through through IN 33899 423 17 ' ' '' 33899 423 18 jets jet NNS 33899 423 19 as as IN 33899 423 20 giving give VBG 33899 423 21 a a DT 33899 423 22 better well JJR 33899 423 23 light light NN 33899 423 24 than than IN 33899 423 25 ' ' `` 33899 423 26 hard hard JJ 33899 423 27 ' ' '' 33899 423 28 limes lime NNS 33899 423 29 , , , 33899 423 30 but but CC 33899 423 31 the the DT 33899 423 32 advantage advantage NN 33899 423 33 , , , 33899 423 34 if if IN 33899 423 35 any any DT 33899 423 36 , , , 33899 423 37 is be VBZ 33899 423 38 very very RB 33899 423 39 little little JJ 33899 423 40 , , , 33899 423 41 and and CC 33899 423 42 these these DT 33899 423 43 limes lime NNS 33899 423 44 are be VBP 33899 423 45 now now RB 33899 423 46 very very RB 33899 423 47 seldom seldom RB 33899 423 48 heard hear VBN 33899 423 49 of of IN 33899 423 50 , , , 33899 423 51 possibly possibly RB 33899 423 52 because because IN 33899 423 53 ' ' `` 33899 423 54 blow blow NN 33899 423 55 - - HYPH 33899 423 56 through through IN 33899 423 57 ' ' '' 33899 423 58 jets jet NNS 33899 423 59 themselves -PRON- PRP 33899 423 60 are be VBP 33899 423 61 becoming become VBG 33899 423 62 less less RBR 33899 423 63 and and CC 33899 423 64 less less RBR 33899 423 65 used used JJ 33899 423 66 , , , 33899 423 67 and and CC 33899 423 68 ' ' `` 33899 423 69 soft soft JJ 33899 423 70 ' ' '' 33899 423 71 limes lime NNS 33899 423 72 will will MD 33899 423 73 not not RB 33899 423 74 stand stand VB 33899 423 75 the the DT 33899 423 76 heat heat NN 33899 423 77 of of IN 33899 423 78 a a DT 33899 423 79 mixed mixed JJ 33899 423 80 or or CC 33899 423 81 ' ' `` 33899 423 82 Injector injector NN 33899 423 83 ' ' '' 33899 423 84 jet jet NN 33899 423 85 for for IN 33899 423 86 long long RB 33899 423 87 . . . 33899 424 1 ' ' `` 33899 424 2 Hard hard JJ 33899 424 3 ' ' '' 33899 424 4 limes lime NNS 33899 424 5 are be VBP 33899 424 6 turned turn VBN 33899 424 7 out out IN 33899 424 8 of of IN 33899 424 9 the the DT 33899 424 10 hardest hard JJS 33899 424 11 stone stone NN 33899 424 12 lime lime NN 33899 424 13 , , , 33899 424 14 and and CC 33899 424 15 must must MD 33899 424 16 be be VB 33899 424 17 kept keep VBN 33899 424 18 in in IN 33899 424 19 sealed seal VBN 33899 424 20 tins tin NNS 33899 424 21 until until IN 33899 424 22 used use VBN 33899 424 23 , , , 33899 424 24 as as IN 33899 424 25 they -PRON- PRP 33899 424 26 rapidly rapidly RB 33899 424 27 disintegrate disintegrate VBP 33899 424 28 when when WRB 33899 424 29 exposed expose VBN 33899 424 30 to to IN 33899 424 31 the the DT 33899 424 32 air air NN 33899 424 33 . . . 33899 425 1 There there EX 33899 425 2 are be VBP 33899 425 3 one one CD 33899 425 4 or or CC 33899 425 5 two two CD 33899 425 6 quarries quarry NNS 33899 425 7 known know VBN 33899 425 8 to to TO 33899 425 9 provide provide VB 33899 425 10 the the DT 33899 425 11 best good JJS 33899 425 12 lime lime NN 33899 425 13 for for IN 33899 425 14 lantern lantern JJ 33899 425 15 purposes purpose NNS 33899 425 16 , , , 33899 425 17 and and CC 33899 425 18 the the DT 33899 425 19 various various JJ 33899 425 20 good good JJ 33899 425 21 brands brand NNS 33899 425 22 on on IN 33899 425 23 the the DT 33899 425 24 market market NN 33899 425 25 practically practically RB 33899 425 26 have have VB 33899 425 27 the the DT 33899 425 28 same same JJ 33899 425 29 origin origin NN 33899 425 30 as as IN 33899 425 31 regards regard VBZ 33899 425 32 raw raw JJ 33899 425 33 material material NN 33899 425 34 , , , 33899 425 35 though though IN 33899 425 36 called call VBN 33899 425 37 by by IN 33899 425 38 different different JJ 33899 425 39 trade trade NN 33899 425 40 names name NNS 33899 425 41 ; ; : 33899 425 42 and and CC 33899 425 43 the the DT 33899 425 44 ' ' `` 33899 425 45 Hardazion Hardazion NNP 33899 425 46 ' ' '' 33899 425 47 ( ( -LRB- 33899 425 48 hard hard RB 33899 425 49 as as IN 33899 425 50 iron iron NN 33899 425 51 ) ) -RRB- 33899 425 52 limes lime NNS 33899 425 53 , , , 33899 425 54 placed place VBN 33899 425 55 on on IN 33899 425 56 the the DT 33899 425 57 market market NN 33899 425 58 some some DT 33899 425 59 years year NNS 33899 425 60 ago ago RB 33899 425 61 by by IN 33899 425 62 a a DT 33899 425 63 well well RB 33899 425 64 - - HYPH 33899 425 65 known know VBN 33899 425 66 wholesale wholesale JJ 33899 425 67 firm firm NN 33899 425 68 , , , 33899 425 69 to to TO 33899 425 70 be be VB 33899 425 71 countered counter VBN 33899 425 72 shortly shortly RB 33899 425 73 after after IN 33899 425 74 by by IN 33899 425 75 the the DT 33899 425 76 ' ' `` 33899 425 77 Hardastil Hardastil NNP 33899 425 78 ' ' '' 33899 425 79 ( ( -LRB- 33899 425 80 harder hard JJR 33899 425 81 still still RB 33899 425 82 ) ) -RRB- 33899 425 83 brand brand NN 33899 425 84 , , , 33899 425 85 are be VBP 33899 425 86 , , , 33899 425 87 I -PRON- PRP 33899 425 88 take take VBP 33899 425 89 it -PRON- PRP 33899 425 90 , , , 33899 425 91 legitimate legitimate JJ 33899 425 92 though though IN 33899 425 93 amusing amusing JJ 33899 425 94 instances instance NNS 33899 425 95 of of IN 33899 425 96 phonetic phonetic JJ 33899 425 97 advertisement advertisement NN 33899 425 98 . . . 33899 426 1 Even even RB 33899 426 2 the the DT 33899 426 3 best good JJS 33899 426 4 of of IN 33899 426 5 limes lime NNS 33899 426 6 is be VBZ 33899 426 7 liable liable JJ 33899 426 8 to to TO 33899 426 9 crack crack VB 33899 426 10 under under IN 33899 426 11 the the DT 33899 426 12 heat heat NN 33899 426 13 { { -LRB- 33899 426 14 39 39 CD 33899 426 15 } } -RRB- 33899 426 16 of of IN 33899 426 17 a a DT 33899 426 18 powerful powerful JJ 33899 426 19 jet jet NN 33899 426 20 , , , 33899 426 21 and and CC 33899 426 22 so so RB 33899 426 23 a a DT 33899 426 24 pair pair NN 33899 426 25 of of IN 33899 426 26 lime lime NN 33899 426 27 - - HYPH 33899 426 28 tongs tong NNS 33899 426 29 should should MD 33899 426 30 always always RB 33899 426 31 be be VB 33899 426 32 provided provide VBN 33899 426 33 , , , 33899 426 34 and and CC 33899 426 35 there there EX 33899 426 36 is be VBZ 33899 426 37 nothing nothing NN 33899 426 38 better well JJR 33899 426 39 than than IN 33899 426 40 the the DT 33899 426 41 simple simple JJ 33899 426 42 form form NN 33899 426 43 shown show VBN 33899 426 44 in in IN 33899 426 45 Fig Fig NNP 33899 426 46 . . . 33899 427 1 25 25 CD 33899 427 2 , , , 33899 427 3 and and CC 33899 427 4 which which WDT 33899 427 5 is be VBZ 33899 427 6 , , , 33899 427 7 or or CC 33899 427 8 should should MD 33899 427 9 be be VB 33899 427 10 , , , 33899 427 11 sold sell VBN 33899 427 12 by by IN 33899 427 13 all all DT 33899 427 14 dealers dealer NNS 33899 427 15 . . . 33899 428 1 [ [ -LRB- 33899 428 2 Illustration illustration NN 33899 428 3 : : : 33899 428 4 FIG FIG NNP 33899 428 5 . . . 33899 429 1 25.--Lime 25.--lime CD 33899 429 2 - - HYPH 33899 429 3 tongs tong NNS 33899 429 4 . . . 33899 429 5 ] ] -RRB- 33899 430 1 SUBSTITUTES SUBSTITUTES NNP 33899 430 2 FOR for IN 33899 430 3 LIMES.--A limes.--a DT 33899 430 4 good good JJ 33899 430 5 substitute substitute NN 33899 430 6 for for IN 33899 430 7 lime lime NN 33899 430 8 , , , 33899 430 9 that that WDT 33899 430 10 will will MD 33899 430 11 give give VB 33899 430 12 the the DT 33899 430 13 same same JJ 33899 430 14 light light NN 33899 430 15 , , , 33899 430 16 stand stand VB 33899 430 17 heat heat NN 33899 430 18 equally equally RB 33899 430 19 as as RB 33899 430 20 well well RB 33899 430 21 , , , 33899 430 22 and and CC 33899 430 23 _ _ NNP 33899 430 24 not not RB 33899 430 25 _ _ NNP 33899 430 26 deteriorate deteriorate VBP 33899 430 27 if if IN 33899 430 28 exposed expose VBN 33899 430 29 to to IN 33899 430 30 the the DT 33899 430 31 atmosphere atmosphere NN 33899 430 32 , , , 33899 430 33 has have VBZ 33899 430 34 long long RB 33899 430 35 been be VBN 33899 430 36 sought seek VBN 33899 430 37 for for IN 33899 430 38 , , , 33899 430 39 and and CC 33899 430 40 some some DT 33899 430 41 of of IN 33899 430 42 the the DT 33899 430 43 more more RBR 33899 430 44 recently recently RB 33899 430 45 discovered discover VBN 33899 430 46 refractory refractory JJ 33899 430 47 materials material NNS 33899 430 48 are be VBP 33899 430 49 more more RBR 33899 430 50 or or CC 33899 430 51 less less RBR 33899 430 52 satisfactory satisfactory JJ 33899 430 53 . . . 33899 431 1 ' ' `` 33899 431 2 Mabor mabor NN 33899 431 3 ' ' '' 33899 431 4 limes lime NNS 33899 431 5 , , , 33899 431 6 for for IN 33899 431 7 example example NN 33899 431 8 , , , 33899 431 9 belong belong VBP 33899 431 10 to to IN 33899 431 11 this this DT 33899 431 12 class class NN 33899 431 13 , , , 33899 431 14 and and CC 33899 431 15 so so RB 33899 431 16 do do VB 33899 431 17 some some DT 33899 431 18 of of IN 33899 431 19 the the DT 33899 431 20 ' ' `` 33899 431 21 pastilles pastille NNS 33899 431 22 , , , 33899 431 23 ' ' '' 33899 431 24 which which WDT 33899 431 25 before before IN 33899 431 26 the the DT 33899 431 27 war war NN 33899 431 28 came come VBD 33899 431 29 chiefly chiefly RB 33899 431 30 from from IN 33899 431 31 France France NNP 33899 431 32 and and CC 33899 431 33 to to IN 33899 431 34 a a DT 33899 431 35 less less JJR 33899 431 36 extent extent NN 33899 431 37 from from IN 33899 431 38 Germany Germany NNP 33899 431 39 . . . 33899 432 1 * * NFP 33899 432 2 * * NFP 33899 432 3 * * NFP 33899 432 4 * * NFP 33899 432 5 * * NFP 33899 432 6 CHAPTER chapter NN 33899 432 7 VI VI NNP 33899 432 8 THE the DT 33899 432 9 ELECTRIC ELECTRIC NNP 33899 432 10 LIGHT light NN 33899 432 11 The the DT 33899 432 12 electric electric JJ 33899 432 13 current current NN 33899 432 14 provides provide VBZ 33899 432 15 _ _ NNP 33899 432 16 the the DT 33899 432 17 _ _ NNP 33899 432 18 light light NN 33899 432 19 for for IN 33899 432 20 an an DT 33899 432 21 optical optical JJ 33899 432 22 lantern lantern NN 33899 432 23 , , , 33899 432 24 though though IN 33899 432 25 it -PRON- PRP 33899 432 26 may may MD 33899 432 27 take take VB 33899 432 28 various various JJ 33899 432 29 forms form NNS 33899 432 30 , , , 33899 432 31 such such JJ 33899 432 32 as as IN 33899 432 33 the the DT 33899 432 34 incandescent incandescent NN 33899 432 35 glow glow NN 33899 432 36 - - HYPH 33899 432 37 lamp lamp NN 33899 432 38 in in IN 33899 432 39 some some DT 33899 432 40 shape shape NN 33899 432 41 or or CC 33899 432 42 other other JJ 33899 432 43 , , , 33899 432 44 the the DT 33899 432 45 comparatively comparatively RB 33899 432 46 new new JJ 33899 432 47 Ediswan Ediswan NNP 33899 432 48 ' ' POS 33899 432 49 Pointolite Pointolite NNP 33899 432 50 ' ' '' 33899 432 51 lamp lamp NN 33899 432 52 , , , 33899 432 53 the the DT 33899 432 54 enclosed enclose VBN 33899 432 55 arc arc NN 33899 432 56 , , , 33899 432 57 and and CC 33899 432 58 the the DT 33899 432 59 open open JJ 33899 432 60 arc arc NN 33899 432 61 . . . 33899 433 1 This this DT 33899 433 2 little little JJ 33899 433 3 book book NN 33899 433 4 is be VBZ 33899 433 5 not not RB 33899 433 6 a a DT 33899 433 7 treatise treatise NN 33899 433 8 on on IN 33899 433 9 electricity electricity NN 33899 433 10 , , , 33899 433 11 but but CC 33899 433 12 a a DT 33899 433 13 few few JJ 33899 433 14 elementary elementary JJ 33899 433 15 notes note NNS 33899 433 16 may may MD 33899 433 17 not not RB 33899 433 18 be be VB 33899 433 19 out out IN 33899 433 20 of of IN 33899 433 21 place place NN 33899 433 22 , , , 33899 433 23 and and CC 33899 433 24 may may MD 33899 433 25 be be VB 33899 433 26 of of IN 33899 433 27 assistance assistance NN 33899 433 28 to to IN 33899 433 29 the the DT 33899 433 30 non non JJ 33899 433 31 - - JJ 33899 433 32 technical technical JJ 33899 433 33 lanternist lanternist NN 33899 433 34 . . . 33899 434 1 The the DT 33899 434 2 first first JJ 33899 434 3 point point NN 33899 434 4 then then RB 33899 434 5 to to TO 33899 434 6 be be VB 33899 434 7 considered consider VBN 33899 434 8 in in IN 33899 434 9 adopting adopt VBG 33899 434 10 the the DT 33899 434 11 electric electric JJ 33899 434 12 light light NN 33899 434 13 for for IN 33899 434 14 the the DT 33899 434 15 purpose purpose NN 33899 434 16 of of IN 33899 434 17 lantern lantern JJ 33899 434 18 projection projection NN 33899 434 19 is be VBZ 33899 434 20 the the DT 33899 434 21 character character NN 33899 434 22 of of IN 33899 434 23 the the DT 33899 434 24 supply supply NN 33899 434 25 , , , 33899 434 26 and and CC 33899 434 27 the the DT 33899 434 28 information information NN 33899 434 29 required require VBN 33899 434 30 may may MD 33899 434 31 be be VB 33899 434 32 summed sum VBN 33899 434 33 up up RP 33899 434 34 thus thus RB 33899 434 35 : : : 33899 434 36 ( ( -LRB- 33899 434 37 1 1 LS 33899 434 38 ) ) -RRB- 33899 434 39 _ _ NNP 33899 434 40 E.M.F. E.M.F. NNP 33899 434 41 _ _ NNP 33899 434 42 , , , 33899 434 43 _ _ NNP 33899 434 44 voltage voltage NN 33899 434 45 _ _ NNP 33899 434 46 , , , 33899 434 47 or or CC 33899 434 48 _ _ NNP 33899 434 49 tension tension NN 33899 434 50 _ _ NNP 33899 434 51 ( ( -LRB- 33899 434 52 these these DT 33899 434 53 three three CD 33899 434 54 expressions expression NNS 33899 434 55 having have VBG 33899 434 56 exactly exactly RB 33899 434 57 the the DT 33899 434 58 same same JJ 33899 434 59 meaning meaning NN 33899 434 60 ) ) -RRB- 33899 434 61 ; ; , 33899 434 62 ( ( -LRB- 33899 434 63 2 2 LS 33899 434 64 ) ) -RRB- 33899 434 65 _ _ NNP 33899 434 66 ampèrage ampèrage NN 33899 434 67 _ _ NNP 33899 434 68 or or CC 33899 434 69 amount amount NN 33899 434 70 of of IN 33899 434 71 current current JJ 33899 434 72 available available JJ 33899 434 73 ; ; : 33899 434 74 ( ( -LRB- 33899 434 75 3 3 LS 33899 434 76 ) ) -RRB- 33899 434 77 whether whether IN 33899 434 78 current current NN 33899 434 79 is be VBZ 33899 434 80 ( ( -LRB- 33899 434 81 _ _ NNP 33899 434 82 a a DT 33899 434 83 _ _ NNP 33899 434 84 ) ) -RRB- 33899 434 85 _ _ NNP 33899 434 86 continuous continuous JJ 33899 434 87 _ _ NNP 33899 434 88 , , , 33899 434 89 _ _ NNP 33899 434 90 constant constant JJ 33899 434 91 _ _ NNP 33899 434 92 , , , 33899 434 93 or or CC 33899 434 94 _ _ NNP 33899 434 95 direct direct JJ 33899 434 96 _ _ NNP 33899 434 97 ( ( -LRB- 33899 434 98 again again RB 33899 434 99 three three CD 33899 434 100 words word NNS 33899 434 101 meaning mean VBG 33899 434 102 { { -LRB- 33899 434 103 40 40 CD 33899 434 104 } } -RRB- 33899 434 105 the the DT 33899 434 106 same same JJ 33899 434 107 thing thing NN 33899 434 108 ) ) -RRB- 33899 434 109 , , , 33899 434 110 or or CC 33899 434 111 ( ( -LRB- 33899 434 112 _ _ NNP 33899 434 113 b b NNP 33899 434 114 _ _ NNP 33899 434 115 ) ) -RRB- 33899 434 116 _ _ NNP 33899 434 117 alternating alternate VBG 33899 434 118 _ _ NNP 33899 434 119 . . . 33899 435 1 The the DT 33899 435 2 E.M.F. E.M.F. NNP 33899 436 1 or or CC 33899 436 2 tension tension NN 33899 436 3 corresponds correspond NNS 33899 436 4 to to IN 33899 436 5 _ _ NNP 33899 436 6 pressure pressure NN 33899 436 7 _ _ NNP 33899 436 8 , , , 33899 436 9 to to TO 33899 436 10 use use VB 33899 436 11 the the DT 33899 436 12 mechanical mechanical JJ 33899 436 13 analogy analogy NN 33899 436 14 of of IN 33899 436 15 a a DT 33899 436 16 water water NN 33899 436 17 pipe pipe NN 33899 436 18 , , , 33899 436 19 and and CC 33899 436 20 the the DT 33899 436 21 _ _ NNP 33899 436 22 ampèrage ampèrage NN 33899 436 23 _ _ NNP 33899 436 24 to to IN 33899 436 25 volume volume NN 33899 436 26 , , , 33899 436 27 and and CC 33899 436 28 the the DT 33899 436 29 voltage voltage NN 33899 436 30 of of IN 33899 436 31 the the DT 33899 436 32 supply supply NN 33899 436 33 currents current NNS 33899 436 34 in in IN 33899 436 35 this this DT 33899 436 36 country country NN 33899 436 37 are be VBP 33899 436 38 usually usually RB 33899 436 39 between between IN 33899 436 40 100 100 CD 33899 436 41 and and CC 33899 436 42 250 250 CD 33899 436 43 volts volt NNS 33899 436 44 . . . 33899 437 1 Private private JJ 33899 437 2 lighting lighting NN 33899 437 3 sets set NNS 33899 437 4 are be VBP 33899 437 5 frequently frequently RB 33899 437 6 as as RB 33899 437 7 low low JJ 33899 437 8 as as IN 33899 437 9 50 50 CD 33899 437 10 , , , 33899 437 11 and and CC 33899 437 12 current current JJ 33899 437 13 derived derive VBN 33899 437 14 from from IN 33899 437 15 accumulators accumulator NNS 33899 437 16 may may MD 33899 437 17 be be VB 33899 437 18 anything anything NN 33899 437 19 from from IN 33899 437 20 a a DT 33899 437 21 few few JJ 33899 437 22 volts volt NNS 33899 437 23 and and CC 33899 437 24 upwards upward NNS 33899 437 25 . . . 33899 438 1 _ _ NNP 33899 438 2 Power Power NNP 33899 438 3 _ _ NNP 33899 438 4 currents current NNS 33899 438 5 , , , 33899 438 6 such such JJ 33899 438 7 as as IN 33899 438 8 commonly commonly RB 33899 438 9 employed employ VBN 33899 438 10 for for IN 33899 438 11 tramways tramway NNS 33899 438 12 , , , 33899 438 13 & & CC 33899 438 14 c. c. NNP 33899 438 15 , , , 33899 438 16 are be VBP 33899 438 17 usually usually RB 33899 438 18 about about IN 33899 438 19 500 500 CD 33899 438 20 volts volt NNS 33899 438 21 , , , 33899 438 22 but but CC 33899 438 23 the the DT 33899 438 24 use use NN 33899 438 25 of of IN 33899 438 26 these these DT 33899 438 27 currents current NNS 33899 438 28 for for IN 33899 438 29 lighting lighting NN 33899 438 30 purposes purpose NNS 33899 438 31 , , , 33899 438 32 though though IN 33899 438 33 practicable practicable JJ 33899 438 34 , , , 33899 438 35 is be VBZ 33899 438 36 not not RB 33899 438 37 to to TO 33899 438 38 be be VB 33899 438 39 advocated advocate VBN 33899 438 40 . . . 33899 439 1 Ampères ampère NNS 33899 439 2 and and CC 33899 439 3 volts volt NNS 33899 439 4 are be VBP 33899 439 5 convertible convertible JJ 33899 439 6 terms term NNS 33899 439 7 in in IN 33899 439 8 a a DT 33899 439 9 sense sense NN 33899 439 10 ; ; : 33899 439 11 that that DT 33899 439 12 is be VBZ 33899 439 13 to to TO 33899 439 14 say say VB 33899 439 15 , , , 33899 439 16 a a DT 33899 439 17 current current NN 33899 439 18 of of IN 33899 439 19 10 10 CD 33899 439 20 ampères ampère NNS 33899 439 21 at at IN 33899 439 22 100 100 CD 33899 439 23 volts volt NNS 33899 439 24 requires require VBZ 33899 439 25 the the DT 33899 439 26 same same JJ 33899 439 27 horse horse NN 33899 439 28 - - HYPH 33899 439 29 power power NN 33899 439 30 to to TO 33899 439 31 generate generate VB 33899 439 32 it -PRON- PRP 33899 439 33 as as IN 33899 439 34 one one CD 33899 439 35 of of IN 33899 439 36 5 5 CD 33899 439 37 ampères ampère NNS 33899 439 38 at at IN 33899 439 39 200 200 CD 33899 439 40 volts volt NNS 33899 439 41 , , , 33899 439 42 or or CC 33899 439 43 20 20 CD 33899 439 44 ampères ampère NNS 33899 439 45 at at IN 33899 439 46 50 50 CD 33899 439 47 volts volt NNS 33899 439 48 , , , 33899 439 49 but but CC 33899 439 50 they -PRON- PRP 33899 439 51 are be VBP 33899 439 52 by by IN 33899 439 53 no no DT 33899 439 54 means means NN 33899 439 55 convertible convertible JJ 33899 439 56 as as IN 33899 439 57 regards regard VBZ 33899 439 58 their -PRON- PRP$ 33899 439 59 _ _ NNP 33899 439 60 efficient efficient JJ 33899 439 61 _ _ NNP 33899 439 62 use use NN 33899 439 63 for for IN 33899 439 64 our -PRON- PRP$ 33899 439 65 purpose purpose NN 33899 439 66 . . . 33899 440 1 The the DT 33899 440 2 ampères ampère NNS 33899 440 3 used use VBN 33899 440 4 multiplied multiply VBN 33899 440 5 by by IN 33899 440 6 the the DT 33899 440 7 number number NN 33899 440 8 of of IN 33899 440 9 volts volt NNS 33899 440 10 give give VBP 33899 440 11 the the DT 33899 440 12 total total JJ 33899 440 13 power power NN 33899 440 14 consumed consume VBN 33899 440 15 in in IN 33899 440 16 _ _ NNP 33899 440 17 watts watts NNP 33899 440 18 _ _ NNP 33899 440 19 , , , 33899 440 20 and and CC 33899 440 21 1000 1000 CD 33899 440 22 watts watt NNS 33899 440 23 used use VBN 33899 440 24 for for IN 33899 440 25 one one CD 33899 440 26 hour hour NN 33899 440 27 represent represent NN 33899 440 28 1 1 CD 33899 440 29 _ _ NNP 33899 440 30 unit unit NN 33899 440 31 _ _ NNP 33899 440 32 as as IN 33899 440 33 charged charge VBN 33899 440 34 for for IN 33899 440 35 on on IN 33899 440 36 our -PRON- PRP$ 33899 440 37 dreaded dread VBN 33899 440 38 lighting lighting NN 33899 440 39 bills bill NNS 33899 440 40 . . . 33899 441 1 The the DT 33899 441 2 current current JJ 33899 441 3 available available JJ 33899 441 4 from from IN 33899 441 5 a a DT 33899 441 6 public public JJ 33899 441 7 supply supply NN 33899 441 8 may may MD 33899 441 9 be be VB 33899 441 10 said say VBN 33899 441 11 to to TO 33899 441 12 be be VB 33899 441 13 unlimited unlimited JJ 33899 441 14 so so RB 33899 441 15 far far RB 33899 441 16 as as IN 33899 441 17 our -PRON- PRP$ 33899 441 18 purpose purpose NN 33899 441 19 is be VBZ 33899 441 20 concerned concern VBN 33899 441 21 , , , 33899 441 22 and and CC 33899 441 23 the the DT 33899 441 24 amount amount NN 33899 441 25 actually actually RB 33899 441 26 used use VBN 33899 441 27 depends depend VBZ 33899 441 28 only only RB 33899 441 29 on on IN 33899 441 30 the the DT 33899 441 31 total total JJ 33899 441 32 electrical electrical JJ 33899 441 33 resistance resistance NN 33899 441 34 of of IN 33899 441 35 our -PRON- PRP$ 33899 441 36 circuit circuit NN 33899 441 37 , , , 33899 441 38 and and CC 33899 441 39 this this DT 33899 441 40 is be VBZ 33899 441 41 measured measure VBN 33899 441 42 in in IN 33899 441 43 _ _ NNP 33899 441 44 ohms ohms NNP 33899 441 45 _ _ NNP 33899 441 46 , , , 33899 441 47 the the DT 33899 441 48 three three CD 33899 441 49 factors factor NNS 33899 441 50 , , , 33899 441 51 viz viz NN 33899 441 52 . . . 33899 442 1 volts volt NNS 33899 442 2 , , , 33899 442 3 ampères ampère NNS 33899 442 4 , , , 33899 442 5 and and CC 33899 442 6 resistance resistance NN 33899 442 7 , , , 33899 442 8 being be VBG 33899 442 9 connected connect VBN 33899 442 10 by by IN 33899 442 11 the the DT 33899 442 12 well well RB 33899 442 13 - - HYPH 33899 442 14 known know VBN 33899 442 15 and and CC 33899 442 16 simple simple JJ 33899 442 17 equation equation NN 33899 442 18 C c NN 33899 442 19 = = SYM 33899 442 20 E e NN 33899 442 21 / / SYM 33899 442 22 R r NN 33899 442 23 , , , 33899 442 24 C C NNP 33899 442 25 representing represent VBG 33899 442 26 the the DT 33899 442 27 current current NN 33899 442 28 in in IN 33899 442 29 ampères ampère NNS 33899 442 30 , , , 33899 442 31 E e VB 33899 442 32 the the DT 33899 442 33 tension tension NN 33899 442 34 or or CC 33899 442 35 E.M.F. E.M.F. NNP 33899 443 1 ( ( -LRB- 33899 443 2 electro electro NNP 33899 443 3 - - HYPH 33899 443 4 motive motive JJ 33899 443 5 force force NN 33899 443 6 ) ) -RRB- 33899 443 7 in in IN 33899 443 8 volts volt NNS 33899 443 9 , , , 33899 443 10 and and CC 33899 443 11 R r NN 33899 443 12 the the DT 33899 443 13 resistance resistance NN 33899 443 14 in in IN 33899 443 15 ohms ohms NNP 33899 443 16 . . . 33899 444 1 The the DT 33899 444 2 total total JJ 33899 444 3 current current NN 33899 444 4 we -PRON- PRP 33899 444 5 _ _ NNP 33899 444 6 can can MD 33899 444 7 _ _ NNP 33899 444 8 use use NN 33899 444 9 , , , 33899 444 10 however however RB 33899 444 11 , , , 33899 444 12 is be VBZ 33899 444 13 limited limit VBN 33899 444 14 by by IN 33899 444 15 the the DT 33899 444 16 size size NN 33899 444 17 of of IN 33899 444 18 the the DT 33899 444 19 cable cable NN 33899 444 20 laid lay VBN 33899 444 21 on on RP 33899 444 22 in in IN 33899 444 23 the the DT 33899 444 24 building building NN 33899 444 25 , , , 33899 444 26 and and CC 33899 444 27 this this DT 33899 444 28 is be VBZ 33899 444 29 automatically automatically RB 33899 444 30 safeguarded safeguarded JJ 33899 444 31 ( ( -LRB- 33899 444 32 or or CC 33899 444 33 should should MD 33899 444 34 be be VB 33899 444 35 ) ) -RRB- 33899 444 36 by by IN 33899 444 37 the the DT 33899 444 38 _ _ NNP 33899 444 39 fuses fuse NNS 33899 444 40 _ _ NNP 33899 444 41 , , , 33899 444 42 which which WDT 33899 444 43 consist consist VBP 33899 444 44 , , , 33899 444 45 as as IN 33899 444 46 is be VBZ 33899 444 47 generally generally RB 33899 444 48 known know VBN 33899 444 49 , , , 33899 444 50 of of IN 33899 444 51 thin thin JJ 33899 444 52 wires wire NNS 33899 444 53 or or CC 33899 444 54 strips strip NNS 33899 444 55 of of IN 33899 444 56 tin tin NN 33899 444 57 or or CC 33899 444 58 lead lead NN 33899 444 59 fixed fix VBN 33899 444 60 on on IN 33899 444 61 a a DT 33899 444 62 fuse fuse NN 33899 444 63 board board NN 33899 444 64 in in IN 33899 444 65 an an DT 33899 444 66 easily easily RB 33899 444 67 accessible accessible JJ 33899 444 68 place place NN 33899 444 69 , , , 33899 444 70 and and CC 33899 444 71 which which WDT 33899 444 72 melt melt VBP 33899 444 73 directly directly RB 33899 444 74 the the DT 33899 444 75 current current NN 33899 444 76 exceeds exceed VBZ 33899 444 77 a a DT 33899 444 78 safe safe JJ 33899 444 79 amount amount NN 33899 444 80 in in IN 33899 444 81 ampères ampère NNS 33899 444 82 . . . 33899 445 1 Whatever whatever WDT 33899 445 2 method method NN 33899 445 3 of of IN 33899 445 4 lighting lighting NN 33899 445 5 we -PRON- PRP 33899 445 6 use use VBP 33899 445 7 therefore therefore RB 33899 445 8 , , , 33899 445 9 _ _ NNP 33899 445 10 enough enough JJ 33899 445 11 _ _ NNP 33899 445 12 resistance resistance NN 33899 445 13 must must MD 33899 445 14 always always RB 33899 445 15 be be VB 33899 445 16 kept keep VBN 33899 445 17 in in IN 33899 445 18 the the DT 33899 445 19 circuit circuit NN 33899 445 20 to to TO 33899 445 21 ensure ensure VB 33899 445 22 { { -LRB- 33899 445 23 41 41 CD 33899 445 24 } } -RRB- 33899 445 25 that that IN 33899 445 26 no no DT 33899 445 27 more more RBR 33899 445 28 current current JJ 33899 445 29 can can MD 33899 445 30 pass pass VB 33899 445 31 than than IN 33899 445 32 has have VBZ 33899 445 33 been be VBN 33899 445 34 provided provide VBN 33899 445 35 for for IN 33899 445 36 , , , 33899 445 37 and and CC 33899 445 38 in in IN 33899 445 39 the the DT 33899 445 40 case case NN 33899 445 41 of of IN 33899 445 42 an an DT 33899 445 43 arc arc NN 33899 445 44 lamp lamp NN 33899 445 45 this this DT 33899 445 46 usually usually RB 33899 445 47 means mean VBZ 33899 445 48 a a DT 33899 445 49 _ _ NNP 33899 445 50 resistance resistance NN 33899 445 51 _ _ NNP 33899 445 52 or or CC 33899 445 53 rheostat rheostat NN 33899 445 54 being be VBG 33899 445 55 retained retain VBN 33899 445 56 in in IN 33899 445 57 the the DT 33899 445 58 circuit circuit NN 33899 445 59 in in IN 33899 445 60 addition addition NN 33899 445 61 to to IN 33899 445 62 the the DT 33899 445 63 arc arc NN 33899 445 64 itself -PRON- PRP 33899 445 65 , , , 33899 445 66 through through IN 33899 445 67 which which WDT 33899 445 68 the the DT 33899 445 69 current current NN 33899 445 70 is be VBZ 33899 445 71 passed pass VBN 33899 445 72 and and CC 33899 445 73 absolutely absolutely RB 33899 445 74 wasted waste VBN 33899 445 75 , , , 33899 445 76 though though IN 33899 445 77 fortunately fortunately RB 33899 445 78 the the DT 33899 445 79 waste waste NN 33899 445 80 in in IN 33899 445 81 money money NN 33899 445 82 is be VBZ 33899 445 83 negligible negligible JJ 33899 445 84 , , , 33899 445 85 and and CC 33899 445 86 for for IN 33899 445 87 reasons reason NNS 33899 445 88 to to TO 33899 445 89 be be VB 33899 445 90 discussed discuss VBN 33899 445 91 later later RB 33899 445 92 such such PDT 33899 445 93 a a DT 33899 445 94 resistance resistance NN 33899 445 95 is be VBZ 33899 445 96 necessary necessary JJ 33899 445 97 with with IN 33899 445 98 an an DT 33899 445 99 optical optical JJ 33899 445 100 lantern lantern NN 33899 445 101 arc arc NN 33899 445 102 lamp lamp NN 33899 445 103 in in IN 33899 445 104 any any DT 33899 445 105 case case NN 33899 445 106 . . . 33899 446 1 In in IN 33899 446 2 the the DT 33899 446 3 case case NN 33899 446 4 of of IN 33899 446 5 a a DT 33899 446 6 glow glow NN 33899 446 7 - - HYPH 33899 446 8 lamp lamp NN 33899 446 9 , , , 33899 446 10 the the DT 33899 446 11 entire entire JJ 33899 446 12 resistance resistance NN 33899 446 13 is be VBZ 33899 446 14 provided provide VBN 33899 446 15 by by IN 33899 446 16 the the DT 33899 446 17 filament filament NN 33899 446 18 of of IN 33899 446 19 the the DT 33899 446 20 lamp lamp NN 33899 446 21 itself -PRON- PRP 33899 446 22 , , , 33899 446 23 and and CC 33899 446 24 that that DT 33899 446 25 is be VBZ 33899 446 26 why why WRB 33899 446 27 an an DT 33899 446 28 ordinary ordinary JJ 33899 446 29 metal metal NN 33899 446 30 or or CC 33899 446 31 carbon carbon NN 33899 446 32 filament filament NN 33899 446 33 lamp lamp NN 33899 446 34 , , , 33899 446 35 for for IN 33899 446 36 say say UH 33899 446 37 200 200 CD 33899 446 38 volts volt NNS 33899 446 39 , , , 33899 446 40 has have VBZ 33899 446 41 to to TO 33899 446 42 be be VB 33899 446 43 manufactured manufacture VBN 33899 446 44 with with IN 33899 446 45 an an DT 33899 446 46 extremely extremely RB 33899 446 47 long long JJ 33899 446 48 and and CC 33899 446 49 slender slend JJR 33899 446 50 , , , 33899 446 51 and and CC 33899 446 52 therefore therefore RB 33899 446 53 fragile fragile JJ 33899 446 54 , , , 33899 446 55 filament filament NN 33899 446 56 , , , 33899 446 57 while while IN 33899 446 58 with with IN 33899 446 59 an an DT 33899 446 60 ordinary ordinary JJ 33899 446 61 pocket pocket NN 33899 446 62 - - HYPH 33899 446 63 torch torch NN 33899 446 64 , , , 33899 446 65 which which WDT 33899 446 66 is be VBZ 33899 446 67 usually usually RB 33899 446 68 supplied supply VBN 33899 446 69 with with IN 33899 446 70 current current NN 33899 446 71 from from IN 33899 446 72 a a DT 33899 446 73 dry dry JJ 33899 446 74 battery battery NN 33899 446 75 of of IN 33899 446 76 some some DT 33899 446 77 3 3 CD 33899 446 78 or or CC 33899 446 79 4 4 CD 33899 446 80 volts volt NNS 33899 446 81 only only RB 33899 446 82 , , , 33899 446 83 the the DT 33899 446 84 filament filament NN 33899 446 85 can can MD 33899 446 86 be be VB 33899 446 87 short short JJ 33899 446 88 and and CC 33899 446 89 thick thick JJ 33899 446 90 . . . 33899 447 1 Speaking speak VBG 33899 447 2 generally generally RB 33899 447 3 , , , 33899 447 4 glow glow NN 33899 447 5 - - HYPH 33899 447 6 lamps lamp NNS 33899 447 7 on on IN 33899 447 8 a a DT 33899 447 9 low low JJ 33899 447 10 voltage voltage NN 33899 447 11 current current NN 33899 447 12 can can MD 33899 447 13 be be VB 33899 447 14 made make VBN 33899 447 15 more more RBR 33899 447 16 efficient efficient JJ 33899 447 17 than than IN 33899 447 18 on on IN 33899 447 19 a a DT 33899 447 20 high high JJ 33899 447 21 one one NN 33899 447 22 , , , 33899 447 23 and and CC 33899 447 24 are be VBP 33899 447 25 also also RB 33899 447 26 longer long RBR 33899 447 27 lived live VBN 33899 447 28 for for IN 33899 447 29 very very RB 33899 447 30 obvious obvious JJ 33899 447 31 reasons reason NNS 33899 447 32 ; ; : 33899 447 33 but but CC 33899 447 34 , , , 33899 447 35 on on IN 33899 447 36 the the DT 33899 447 37 other other JJ 33899 447 38 hand hand NN 33899 447 39 , , , 33899 447 40 the the DT 33899 447 41 transmission transmission NN 33899 447 42 of of IN 33899 447 43 current current NN 33899 447 44 over over IN 33899 447 45 long long JJ 33899 447 46 distances distance NNS 33899 447 47 is be VBZ 33899 447 48 cheaper cheap JJR 33899 447 49 the the DT 33899 447 50 higher high JJR 33899 447 51 the the DT 33899 447 52 tension tension NN 33899 447 53 , , , 33899 447 54 as as IN 33899 447 55 for for IN 33899 447 56 a a DT 33899 447 57 given give VBN 33899 447 58 number number NN 33899 447 59 of of IN 33899 447 60 watts watt NNS 33899 447 61 the the DT 33899 447 62 ampèrage ampèrage NN 33899 447 63 is be VBZ 33899 447 64 less less JJR 33899 447 65 , , , 33899 447 66 and and CC 33899 447 67 therefore therefore RB 33899 447 68 smaller small JJR 33899 447 69 cables cable NNS 33899 447 70 can can MD 33899 447 71 be be VB 33899 447 72 employed employ VBN 33899 447 73 . . . 33899 448 1 On on IN 33899 448 2 the the DT 33899 448 3 whole whole NN 33899 448 4 , , , 33899 448 5 then then RB 33899 448 6 , , , 33899 448 7 currents current NNS 33899 448 8 of of IN 33899 448 9 200 200 CD 33899 448 10 to to TO 33899 448 11 250 250 CD 33899 448 12 volts volt NNS 33899 448 13 have have VBP 33899 448 14 during during IN 33899 448 15 recent recent JJ 33899 448 16 years year NNS 33899 448 17 become become VBP 33899 448 18 more more RBR 33899 448 19 common common JJ 33899 448 20 than than IN 33899 448 21 100 100 CD 33899 448 22 , , , 33899 448 23 in in IN 33899 448 24 spite spite NN 33899 448 25 of of IN 33899 448 26 greater great JJR 33899 448 27 difficulties difficulty NNS 33899 448 28 in in IN 33899 448 29 making make VBG 33899 448 30 the the DT 33899 448 31 lamps lamp NNS 33899 448 32 ; ; : 33899 448 33 but but CC 33899 448 34 occasionally occasionally RB 33899 448 35 one one PRP 33899 448 36 finds find VBZ 33899 448 37 a a DT 33899 448 38 hall hall NN 33899 448 39 where where WRB 33899 448 40 two two CD 33899 448 41 or or CC 33899 448 42 more more JJR 33899 448 43 lamps lamp NNS 33899 448 44 are be VBP 33899 448 45 wired wire VBN 33899 448 46 in in IN 33899 448 47 _ _ NNP 33899 448 48 series series NN 33899 448 49 _ _ NNP 33899 448 50 , , , 33899 448 51 two two CD 33899 448 52 100-volt 100-volt CD 33899 448 53 lamps lamp NNS 33899 448 54 for for IN 33899 448 55 example example NN 33899 448 56 being be VBG 33899 448 57 wired wire VBN 33899 448 58 together together RB 33899 448 59 in in IN 33899 448 60 series series NN 33899 448 61 on on IN 33899 448 62 a a DT 33899 448 63 200-volt 200-volt CD 33899 448 64 circuit circuit NN 33899 448 65 . . . 33899 449 1 If if IN 33899 449 2 we -PRON- PRP 33899 449 3 are be VBP 33899 449 4 using use VBG 33899 449 5 current current NN 33899 449 6 for for IN 33899 449 7 our -PRON- PRP$ 33899 449 8 lantern lantern NN 33899 449 9 from from IN 33899 449 10 an an DT 33899 449 11 ordinary ordinary JJ 33899 449 12 lamp lamp NN 33899 449 13 socket socket NN 33899 449 14 , , , 33899 449 15 this this DT 33899 449 16 is be VBZ 33899 449 17 a a DT 33899 449 18 possibility possibility NN 33899 449 19 that that WDT 33899 449 20 must must MD 33899 449 21 be be VB 33899 449 22 borne bear VBN 33899 449 23 in in IN 33899 449 24 mind mind NN 33899 449 25 . . . 33899 450 1 The the DT 33899 450 2 same same JJ 33899 450 3 considerations consideration NNS 33899 450 4 , , , 33899 450 5 viz viz NN 33899 450 6 . . . 33899 451 1 the the DT 33899 451 2 economy economy NN 33899 451 3 of of IN 33899 451 4 transmitting transmit VBG 33899 451 5 power power NN 33899 451 6 at at IN 33899 451 7 high high JJ 33899 451 8 tension tension NN 33899 451 9 and and CC 33899 451 10 of of IN 33899 451 11 _ _ NNP 33899 451 12 using use VBG 33899 451 13 _ _ NNP 33899 451 14 it -PRON- PRP 33899 451 15 at at IN 33899 451 16 a a DT 33899 451 17 lower low JJR 33899 451 18 one one NN 33899 451 19 , , , 33899 451 20 have have VBP 33899 451 21 been be VBN 33899 451 22 mainly mainly RB 33899 451 23 responsible responsible JJ 33899 451 24 for for IN 33899 451 25 the the DT 33899 451 26 rapidly rapidly RB 33899 451 27 increasing increase VBG 33899 451 28 number number NN 33899 451 29 of of IN 33899 451 30 alternating alternate VBG 33899 451 31 current current JJ 33899 451 32 circuits circuit NNS 33899 451 33 now now RB 33899 451 34 met meet VBD 33899 451 35 with with IN 33899 451 36 , , , 33899 451 37 especially especially RB 33899 451 38 in in IN 33899 451 39 sparsely sparsely RB 33899 451 40 populated populated JJ 33899 451 41 districts district NNS 33899 451 42 . . . 33899 452 1 An an DT 33899 452 2 alternating alternate VBG 33899 452 3 current current JJ 33899 452 4 main main NN 33899 452 5 is be VBZ 33899 452 6 one one CD 33899 452 7 in in IN 33899 452 8 which which WDT 33899 452 9 the the DT 33899 452 10 current current NN 33899 452 11 reverses reverse VBZ 33899 452 12 its -PRON- PRP$ 33899 452 13 direction direction NN 33899 452 14 , , , 33899 452 15 usually usually RB 33899 452 16 in in IN 33899 452 17 this this DT 33899 452 18 country country NN 33899 452 19 50 50 CD 33899 452 20 , , , 33899 452 21 but but CC 33899 452 22 sometimes sometimes RB 33899 452 23 60 60 CD 33899 452 24 , , , 33899 452 25 80 80 CD 33899 452 26 , , , 33899 452 27 90 90 CD 33899 452 28 , , , 33899 452 29 or or CC 33899 452 30 even even RB 33899 452 31 100 100 CD 33899 452 32 times time NNS 33899 452 33 { { -LRB- 33899 452 34 42 42 CD 33899 452 35 } } -RRB- 33899 452 36 per per IN 33899 452 37 second second NN 33899 452 38 ( ( -LRB- 33899 452 39 there there EX 33899 452 40 being be VBG 33899 452 41 unfortunately unfortunately RB 33899 452 42 in in IN 33899 452 43 Great Great NNP 33899 452 44 Britain Britain NNP 33899 452 45 no no DT 33899 452 46 standard standard NN 33899 452 47 ' ' `` 33899 452 48 Periodicity periodicity NN 33899 452 49 ' ' '' 33899 452 50 or or CC 33899 452 51 number number NN 33899 452 52 of of IN 33899 452 53 cycles cycle NNS 33899 452 54 per per IN 33899 452 55 second second NN 33899 452 56 ) ) -RRB- 33899 452 57 , , , 33899 452 58 and and CC 33899 452 59 for for IN 33899 452 60 technical technical JJ 33899 452 61 reasons reason NNS 33899 452 62 which which WDT 33899 452 63 need need VBP 33899 452 64 not not RB 33899 452 65 be be VB 33899 452 66 entered enter VBN 33899 452 67 upon upon IN 33899 452 68 here here RB 33899 452 69 , , , 33899 452 70 with with IN 33899 452 71 these these DT 33899 452 72 alternating alternate VBG 33899 452 73 currents current NNS 33899 452 74 the the DT 33899 452 75 tension tension NN 33899 452 76 and and CC 33899 452 77 ampèrage ampèrage NN 33899 452 78 can can MD 33899 452 79 be be VB 33899 452 80 mutually mutually RB 33899 452 81 converted convert VBN 33899 452 82 by by IN 33899 452 83 means mean NNS 33899 452 84 of of IN 33899 452 85 _ _ NNP 33899 452 86 transformers transformer NNS 33899 452 87 _ _ NNP 33899 452 88 , , , 33899 452 89 so so IN 33899 452 90 that that IN 33899 452 91 current current NN 33899 452 92 can can MD 33899 452 93 be be VB 33899 452 94 transmitted transmit VBN 33899 452 95 at at IN 33899 452 96 so so RB 33899 452 97 high high JJ 33899 452 98 a a DT 33899 452 99 tension tension NN 33899 452 100 , , , 33899 452 101 for for IN 33899 452 102 instance instance NN 33899 452 103 , , , 33899 452 104 as as IN 33899 452 105 10,000 10,000 CD 33899 452 106 volts volt NNS 33899 452 107 , , , 33899 452 108 and and CC 33899 452 109 used use VBN 33899 452 110 at at IN 33899 452 111 a a DT 33899 452 112 voltage voltage NN 33899 452 113 of of IN 33899 452 114 50 50 CD 33899 452 115 or or CC 33899 452 116 100 100 CD 33899 452 117 or or CC 33899 452 118 whatever whatever WDT 33899 452 119 is be VBZ 33899 452 120 required require VBN 33899 452 121 , , , 33899 452 122 the the DT 33899 452 123 ampèrage ampèrage NN 33899 452 124 available available JJ 33899 452 125 being be VBG 33899 452 126 increased increase VBN 33899 452 127 in in IN 33899 452 128 inverse inverse NN 33899 452 129 ratio ratio NN 33899 452 130 as as IN 33899 452 131 the the DT 33899 452 132 tension tension NN 33899 452 133 is be VBZ 33899 452 134 decreased decrease VBN 33899 452 135 . . . 33899 453 1 The the DT 33899 453 2 same same JJ 33899 453 3 ready ready JJ 33899 453 4 power power NN 33899 453 5 of of IN 33899 453 6 transformation transformation NN 33899 453 7 unfortunately unfortunately RB 33899 453 8 does do VBZ 33899 453 9 not not RB 33899 453 10 apply apply VB 33899 453 11 to to IN 33899 453 12 the the DT 33899 453 13 continuous continuous JJ 33899 453 14 current current NN 33899 453 15 , , , 33899 453 16 or or CC 33899 453 17 alternating alternate VBG 33899 453 18 currents current NNS 33899 453 19 would would MD 33899 453 20 probably probably RB 33899 453 21 never never RB 33899 453 22 have have VB 33899 453 23 been be VBN 33899 453 24 heard hear VBN 33899 453 25 of of IN 33899 453 26 , , , 33899 453 27 but but CC 33899 453 28 as as IN 33899 453 29 it -PRON- PRP 33899 453 30 is be VBZ 33899 453 31 they -PRON- PRP 33899 453 32 are be VBP 33899 453 33 very very RB 33899 453 34 common common JJ 33899 453 35 . . . 33899 454 1 For for IN 33899 454 2 glow glow NN 33899 454 3 - - HYPH 33899 454 4 lamps lamp NNS 33899 454 5 it -PRON- PRP 33899 454 6 is be VBZ 33899 454 7 immaterial immaterial JJ 33899 454 8 which which WDT 33899 454 9 current current NN 33899 454 10 is be VBZ 33899 454 11 available available JJ 33899 454 12 , , , 33899 454 13 but but CC 33899 454 14 for for IN 33899 454 15 arc arc NN 33899 454 16 lamps lamp VBZ 33899 454 17 the the DT 33899 454 18 continuous continuous JJ 33899 454 19 is be VBZ 33899 454 20 much much JJ 33899 454 21 to to TO 33899 454 22 be be VB 33899 454 23 preferred prefer VBN 33899 454 24 , , , 33899 454 25 though though IN 33899 454 26 both both DT 33899 454 27 can can MD 33899 454 28 be be VB 33899 454 29 utilised utilise VBN 33899 454 30 . . . 33899 455 1 With with IN 33899 455 2 these these DT 33899 455 3 initial initial JJ 33899 455 4 remarks remark NNS 33899 455 5 , , , 33899 455 6 I -PRON- PRP 33899 455 7 will will MD 33899 455 8 now now RB 33899 455 9 take take VB 33899 455 10 in in IN 33899 455 11 order order NN 33899 455 12 of of IN 33899 455 13 illumination illumination NN 33899 455 14 the the DT 33899 455 15 various various JJ 33899 455 16 methods method NNS 33899 455 17 of of IN 33899 455 18 utilising utilise VBG 33899 455 19 the the DT 33899 455 20 electric electric JJ 33899 455 21 current current NN 33899 455 22 for for IN 33899 455 23 optical optical JJ 33899 455 24 lantern lantern JJ 33899 455 25 work work NN 33899 455 26 . . . 33899 456 1 THE the DT 33899 456 2 ELECTRIC ELECTRIC NNP 33899 456 3 GLOW GLOW NNP 33899 456 4 - - HYPH 33899 456 5 LAMP.--The lamp.--the JJ 33899 456 6 ordinary ordinary JJ 33899 456 7 metal metal NN 33899 456 8 filament filament NN 33899 456 9 lamp lamp NN 33899 456 10 is be VBZ 33899 456 11 not not RB 33899 456 12 very very RB 33899 456 13 suitable suitable JJ 33899 456 14 for for IN 33899 456 15 lantern lantern JJ 33899 456 16 work work NN 33899 456 17 , , , 33899 456 18 the the DT 33899 456 19 light light NN 33899 456 20 not not RB 33899 456 21 being be VBG 33899 456 22 sufficiently sufficiently RB 33899 456 23 concentrated concentrate VBN 33899 456 24 , , , 33899 456 25 but but CC 33899 456 26 from from IN 33899 456 27 what what WP 33899 456 28 has have VBZ 33899 456 29 already already RB 33899 456 30 been be VBN 33899 456 31 said say VBN 33899 456 32 , , , 33899 456 33 it -PRON- PRP 33899 456 34 will will MD 33899 456 35 be be VB 33899 456 36 evident evident JJ 33899 456 37 that that IN 33899 456 38 this this DT 33899 456 39 method method NN 33899 456 40 of of IN 33899 456 41 lighting lighting NN 33899 456 42 is be VBZ 33899 456 43 more more RBR 33899 456 44 suitable suitable JJ 33899 456 45 where where WRB 33899 456 46 currents current NNS 33899 456 47 of of IN 33899 456 48 low low JJ 33899 456 49 voltage voltage NN 33899 456 50 are be VBP 33899 456 51 available available JJ 33899 456 52 . . . 33899 457 1 An an DT 33899 457 2 extremely extremely RB 33899 457 3 good good JJ 33899 457 4 and and CC 33899 457 5 intense intense JJ 33899 457 6 light light NN 33899 457 7 can can MD 33899 457 8 be be VB 33899 457 9 obtained obtain VBN 33899 457 10 from from IN 33899 457 11 a a DT 33899 457 12 comparatively comparatively RB 33899 457 13 small small JJ 33899 457 14 battery battery NN 33899 457 15 of of IN 33899 457 16 accumulators accumulator NNS 33899 457 17 , , , 33899 457 18 which which WDT 33899 457 19 can can MD 33899 457 20 easily easily RB 33899 457 21 be be VB 33899 457 22 carried carry VBN 33899 457 23 in in IN 33899 457 24 the the DT 33899 457 25 hand hand NN 33899 457 26 , , , 33899 457 27 and and CC 33899 457 28 a a DT 33899 457 29 short short JJ 33899 457 30 and and CC 33899 457 31 thick thick JJ 33899 457 32 metal metal NN 33899 457 33 filament filament NN 33899 457 34 lamp lamp NN 33899 457 35 , , , 33899 457 36 similar similar JJ 33899 457 37 to to IN 33899 457 38 those those DT 33899 457 39 supplied supply VBN 33899 457 40 with with IN 33899 457 41 a a DT 33899 457 42 powerful powerful JJ 33899 457 43 electric electric JJ 33899 457 44 torch torch NN 33899 457 45 ; ; : 33899 457 46 and and CC 33899 457 47 this this DT 33899 457 48 arrangement arrangement NN 33899 457 49 is be VBZ 33899 457 50 actually actually RB 33899 457 51 used use VBN 33899 457 52 to to IN 33899 457 53 some some DT 33899 457 54 extent extent NN 33899 457 55 by by IN 33899 457 56 travelling travel VBG 33899 457 57 lecturers lecturer NNS 33899 457 58 , , , 33899 457 59 but but CC 33899 457 60 the the DT 33899 457 61 mess mess NN 33899 457 62 and and CC 33899 457 63 trouble trouble NN 33899 457 64 of of IN 33899 457 65 keeping keep VBG 33899 457 66 the the DT 33899 457 67 accumulators accumulator NNS 33899 457 68 in in IN 33899 457 69 order order NN 33899 457 70 have have VBP 33899 457 71 prevented prevent VBN 33899 457 72 the the DT 33899 457 73 method method NN 33899 457 74 being be VBG 33899 457 75 generally generally RB 33899 457 76 adopted adopt VBN 33899 457 77 . . . 33899 458 1 When when WRB 33899 458 2 _ _ NNP 33899 458 3 alternating alternate VBG 33899 458 4 _ _ NNP 33899 458 5 current current NN 33899 458 6 is be VBZ 33899 458 7 available available JJ 33899 458 8 such such PDT 33899 458 9 a a DT 33899 458 10 lamp lamp NN 33899 458 11 will will MD 33899 458 12 work work VB 33899 458 13 well well RB 33899 458 14 with with IN 33899 458 15 a a DT 33899 458 16 transformer transformer NN 33899 458 17 to to TO 33899 458 18 step step VB 33899 458 19 down down RP 33899 458 20 the the DT 33899 458 21 voltage voltage NN 33899 458 22 to to IN 33899 458 23 the the DT 33899 458 24 required require VBN 33899 458 25 degree degree NN 33899 458 26 , , , 33899 458 27 and and CC 33899 458 28 the the DT 33899 458 29 arrangement arrangement NN 33899 458 30 is be VBZ 33899 458 31 simple simple JJ 33899 458 32 , , , 33899 458 33 cheap cheap JJ 33899 458 34 , , , 33899 458 35 and and CC 33899 458 36 efficient efficient JJ 33899 458 37 , , , 33899 458 38 and and CC 33899 458 39 produces produce VBZ 33899 458 40 a a DT 33899 458 41 light light NN 33899 458 42 at at IN 33899 458 43 least least JJS 33899 458 44 equal equal JJ 33899 458 45 to to IN 33899 458 46 that that DT 33899 458 47 from from IN 33899 458 48 { { -LRB- 33899 458 49 43 43 CD 33899 458 50 } } -RRB- 33899 458 51 acetylene acetylene NN 33899 458 52 . . . 33899 459 1 In in IN 33899 459 2 comparatively comparatively RB 33899 459 3 small small JJ 33899 459 4 halls hall NNS 33899 459 5 , , , 33899 459 6 where where WRB 33899 459 7 the the DT 33899 459 8 current current NN 33899 459 9 is be VBZ 33899 459 10 alternating alternate VBG 33899 459 11 , , , 33899 459 12 this this DT 33899 459 13 is be VBZ 33899 459 14 undoubtedly undoubtedly RB 33899 459 15 the the DT 33899 459 16 best good JJS 33899 459 17 method method NN 33899 459 18 of of IN 33899 459 19 working work VBG 33899 459 20 , , , 33899 459 21 as as IN 33899 459 22 it -PRON- PRP 33899 459 23 is be VBZ 33899 459 24 simpler simple JJR 33899 459 25 than than IN 33899 459 26 the the DT 33899 459 27 arc arc NNP 33899 459 28 and and CC 33899 459 29 amply amply NNP 33899 459 30 brilliant brilliant JJ 33899 459 31 enough enough RB 33899 459 32 for for IN 33899 459 33 all all DT 33899 459 34 practical practical JJ 33899 459 35 purposes purpose NNS 33899 459 36 . . . 33899 460 1 With with IN 33899 460 2 the the DT 33899 460 3 continuous continuous JJ 33899 460 4 current current NN 33899 460 5 the the DT 33899 460 6 problem problem NN 33899 460 7 is be VBZ 33899 460 8 not not RB 33899 460 9 so so RB 33899 460 10 simple simple JJ 33899 460 11 , , , 33899 460 12 as as IN 33899 460 13 transformation transformation NN 33899 460 14 of of IN 33899 460 15 voltage voltage NN 33899 460 16 is be VBZ 33899 460 17 not not RB 33899 460 18 an an DT 33899 460 19 easy easy JJ 33899 460 20 matter matter NN 33899 460 21 , , , 33899 460 22 and and CC 33899 460 23 a a DT 33899 460 24 glow glow NN 33899 460 25 - - HYPH 33899 460 26 lamp lamp NN 33899 460 27 on on IN 33899 460 28 ; ; : 33899 460 29 say say VB 33899 460 30 , , , 33899 460 31 a a DT 33899 460 32 200-volt 200-volt CD 33899 460 33 circuit circuit NN 33899 460 34 involves involve VBZ 33899 460 35 a a DT 33899 460 36 long long JJ 33899 460 37 and and CC 33899 460 38 fragile fragile JJ 33899 460 39 filament filament NN 33899 460 40 , , , 33899 460 41 which which WDT 33899 460 42 it -PRON- PRP 33899 460 43 is be VBZ 33899 460 44 difficult difficult JJ 33899 460 45 to to TO 33899 460 46 arrange arrange VB 33899 460 47 in in IN 33899 460 48 a a DT 33899 460 49 small small JJ 33899 460 50 space space NN 33899 460 51 . . . 33899 461 1 Many many JJ 33899 461 2 years year NNS 33899 461 3 ago ago RB 33899 461 4 the the DT 33899 461 5 Ediswan Ediswan NNP 33899 461 6 Company Company NNP 33899 461 7 produced produce VBD 33899 461 8 a a DT 33899 461 9 ' ' `` 33899 461 10 Focus Focus NNP 33899 461 11 ' ' '' 33899 461 12 lamp lamp NN 33899 461 13 for for IN 33899 461 14 the the DT 33899 461 15 purpose purpose NN 33899 461 16 , , , 33899 461 17 with with IN 33899 461 18 the the DT 33899 461 19 filament filament NN 33899 461 20 arranged arrange VBN 33899 461 21 in in IN 33899 461 22 the the DT 33899 461 23 form form NN 33899 461 24 of of IN 33899 461 25 a a DT 33899 461 26 square square JJ 33899 461 27 grid grid NN 33899 461 28 , , , 33899 461 29 and and CC 33899 461 30 this this DT 33899 461 31 lamp lamp NN 33899 461 32 gave give VBD 33899 461 33 a a DT 33899 461 34 light light NN 33899 461 35 of of IN 33899 461 36 about about RB 33899 461 37 100 100 CD 33899 461 38 candles candle NNS 33899 461 39 , , , 33899 461 40 and and CC 33899 461 41 was be VBD 33899 461 42 fairly fairly RB 33899 461 43 successful successful JJ 33899 461 44 for for IN 33899 461 45 a a DT 33899 461 46 small small JJ 33899 461 47 room room NN 33899 461 48 . . . 33899 462 1 More more RBR 33899 462 2 recently recently RB 33899 462 3 the the DT 33899 462 4 Osram Osram NNP 33899 462 5 Company Company NNP 33899 462 6 introduced introduce VBD 33899 462 7 a a DT 33899 462 8 similar similar JJ 33899 462 9 lamp lamp NN 33899 462 10 with with IN 33899 462 11 a a DT 33899 462 12 metal metal NN 33899 462 13 filament filament NN 33899 462 14 arranged arrange VBD 33899 462 15 somewhat somewhat RB 33899 462 16 in in IN 33899 462 17 the the DT 33899 462 18 form form NN 33899 462 19 of of IN 33899 462 20 a a DT 33899 462 21 cone cone NN 33899 462 22 , , , 33899 462 23 and and CC 33899 462 24 this this DT 33899 462 25 lamp lamp NN 33899 462 26 also also RB 33899 462 27 sufficed suffice VBD 33899 462 28 for for IN 33899 462 29 a a DT 33899 462 30 small small JJ 33899 462 31 class class NN 33899 462 32 - - HYPH 33899 462 33 room room NN 33899 462 34 . . . 33899 463 1 It -PRON- PRP 33899 463 2 was be VBD 33899 463 3 , , , 33899 463 4 I -PRON- PRP 33899 463 5 believe believe VBP 33899 463 6 , , , 33899 463 7 made make VBN 33899 463 8 in in IN 33899 463 9 Germany Germany NNP 33899 463 10 and and CC 33899 463 11 was be VBD 33899 463 12 practically practically RB 33899 463 13 unobtainable unobtainable JJ 33899 463 14 during during IN 33899 463 15 the the DT 33899 463 16 war war NN 33899 463 17 . . . 33899 464 1 I -PRON- PRP 33899 464 2 understand understand VBP 33899 464 3 the the DT 33899 464 4 Osram Osram NNP 33899 464 5 Company Company NNP 33899 464 6 are be VBP 33899 464 7 at at IN 33899 464 8 present present JJ 33899 464 9 arranging arranging NN 33899 464 10 to to TO 33899 464 11 manufacture manufacture VB 33899 464 12 it -PRON- PRP 33899 464 13 in in IN 33899 464 14 this this DT 33899 464 15 country country NN 33899 464 16 , , , 33899 464 17 but but CC 33899 464 18 up up IN 33899 464 19 to to IN 33899 464 20 the the DT 33899 464 21 time time NN 33899 464 22 of of IN 33899 464 23 writing writing NN 33899 464 24 it -PRON- PRP 33899 464 25 has have VBZ 33899 464 26 not not RB 33899 464 27 made make VBN 33899 464 28 its -PRON- PRP$ 33899 464 29 appearance appearance NN 33899 464 30 . . . 33899 465 1 None none NN 33899 465 2 of of IN 33899 465 3 these these DT 33899 465 4 lamps lamp NNS 33899 465 5 worked work VBD 33899 465 6 direct direct RB 33899 465 7 on on IN 33899 465 8 a a DT 33899 465 9 public public JJ 33899 465 10 lighting lighting NN 33899 465 11 circuit circuit NN 33899 465 12 can can MD 33899 465 13 be be VB 33899 465 14 regarded regard VBN 33899 465 15 as as IN 33899 465 16 really really RB 33899 465 17 satisfactory satisfactory JJ 33899 465 18 , , , 33899 465 19 as as IN 33899 465 20 it -PRON- PRP 33899 465 21 has have VBZ 33899 465 22 been be VBN 33899 465 23 found find VBN 33899 465 24 impossible impossible JJ 33899 465 25 so so RB 33899 465 26 far far RB 33899 465 27 to to TO 33899 465 28 get get VB 33899 465 29 a a DT 33899 465 30 _ _ NNP 33899 465 31 concentrated concentrate VBN 33899 465 32 _ _ NNP 33899 465 33 light light NN 33899 465 34 ; ; : 33899 465 35 the the DT 33899 465 36 100-volt 100-volt CD 33899 465 37 lamps lamp NNS 33899 465 38 have have VBP 33899 465 39 , , , 33899 465 40 of of IN 33899 465 41 course course NN 33899 465 42 , , , 33899 465 43 been be VBN 33899 465 44 superior superior JJ 33899 465 45 to to IN 33899 465 46 those those DT 33899 465 47 made make VBN 33899 465 48 for for IN 33899 465 49 200 200 CD 33899 465 50 or or CC 33899 465 51 250 250 CD 33899 465 52 , , , 33899 465 53 but but CC 33899 465 54 they -PRON- PRP 33899 465 55 are be VBP 33899 465 56 all all RB 33899 465 57 for for IN 33899 465 58 lantern lantern JJ 33899 465 59 purposes purpose NNS 33899 465 60 far far RB 33899 465 61 behind behind IN 33899 465 62 low low JJ 33899 465 63 voltage voltage NN 33899 465 64 lamps lamp NNS 33899 465 65 , , , 33899 465 66 which which WDT 33899 465 67 are be VBP 33899 465 68 really really RB 33899 465 69 good good JJ 33899 465 70 when when WRB 33899 465 71 a a DT 33899 465 72 suitable suitable JJ 33899 465 73 current current NN 33899 465 74 can can MD 33899 465 75 be be VB 33899 465 76 obtained obtain VBN 33899 465 77 . . . 33899 466 1 THE the DT 33899 466 2 POINTOLITE POINTOLITE NNP 33899 466 3 LAMP.--This lamp.--this PRP$ 33899 466 4 lamp lamp NN 33899 466 5 produced produce VBN 33899 466 6 by by IN 33899 466 7 the the DT 33899 466 8 Ediswan Ediswan NNP 33899 466 9 Company Company NNP 33899 466 10 is be VBZ 33899 466 11 in in IN 33899 466 12 reality reality NN 33899 466 13 a a DT 33899 466 14 miniature miniature JJ 33899 466 15 arc arc NN 33899 466 16 with with IN 33899 466 17 tungsten tungsten NN 33899 466 18 electrodes electrode NNS 33899 466 19 in in IN 33899 466 20 a a DT 33899 466 21 highly highly RB 33899 466 22 exhausted exhausted JJ 33899 466 23 vacuum vacuum NN 33899 466 24 bulb bulb NN 33899 466 25 . . . 33899 467 1 To to TO 33899 467 2 attempt attempt VB 33899 467 3 a a DT 33899 467 4 technical technical JJ 33899 467 5 description description NN 33899 467 6 would would MD 33899 467 7 be be VB 33899 467 8 beyond beyond IN 33899 467 9 the the DT 33899 467 10 scope scope NN 33899 467 11 of of IN 33899 467 12 this this DT 33899 467 13 book book NN 33899 467 14 ; ; : 33899 467 15 it -PRON- PRP 33899 467 16 will will MD 33899 467 17 suffice suffice VB 33899 467 18 to to TO 33899 467 19 say say VB 33899 467 20 that that IN 33899 467 21 the the DT 33899 467 22 action action NN 33899 467 23 depends depend VBZ 33899 467 24 upon upon IN 33899 467 25 the the DT 33899 467 26 same same JJ 33899 467 27 principle principle NN 33899 467 28 as as IN 33899 467 29 the the DT 33899 467 30 various various JJ 33899 467 31 wireless wireless JJ 33899 467 32 vacuum vacuum NN 33899 467 33 valves valve NNS 33899 467 34 or or CC 33899 467 35 the the DT 33899 467 36 Coolidge Coolidge NNP 33899 467 37 X X NNP 33899 467 38 - - NN 33899 467 39 ray ray NN 33899 467 40 tube tube NN 33899 467 41 . . . 33899 468 1 This this DT 33899 468 2 lamp lamp NN 33899 468 3 requires require VBZ 33899 468 4 a a DT 33899 468 5 peculiar peculiar JJ 33899 468 6 starting starting NN 33899 468 7 device device NN 33899 468 8 which which WDT 33899 468 9 is be VBZ 33899 468 10 supplied supply VBN 33899 468 11 with with IN 33899 468 12 it -PRON- PRP 33899 468 13 , , , 33899 468 14 and and CC 33899 468 15 gives give VBZ 33899 468 16 a a DT 33899 468 17 good good JJ 33899 468 18 , , , 33899 468 19 intense intense JJ 33899 468 20 , , , 33899 468 21 and and CC 33899 468 22 concentrated concentrated JJ 33899 468 23 { { -LRB- 33899 468 24 44 44 CD 33899 468 25 } } -RRB- 33899 468 26 light light NN 33899 468 27 , , , 33899 468 28 not not RB 33899 468 29 equal equal JJ 33899 468 30 to to IN 33899 468 31 the the DT 33899 468 32 ordinary ordinary JJ 33899 468 33 arc arc NN 33899 468 34 or or CC 33899 468 35 to to IN 33899 468 36 limelight limelight VB 33899 468 37 , , , 33899 468 38 but but CC 33899 468 39 comparing compare VBG 33899 468 40 well well RB 33899 468 41 with with IN 33899 468 42 any any DT 33899 468 43 other other JJ 33899 468 44 form form NN 33899 468 45 of of IN 33899 468 46 illuminant illuminant NN 33899 468 47 . . . 33899 469 1 It -PRON- PRP 33899 469 2 can can MD 33899 469 3 only only RB 33899 469 4 be be VB 33899 469 5 used use VBN 33899 469 6 with with IN 33899 469 7 the the DT 33899 469 8 continuous continuous JJ 33899 469 9 current current NN 33899 469 10 . . . 33899 470 1 THE the DT 33899 470 2 NERNST NERNST NNP 33899 470 3 LAMP.--This LAMP.--This NNP 33899 470 4 lamp lamp NN 33899 470 5 at at IN 33899 470 6 the the DT 33899 470 7 present present JJ 33899 470 8 moment moment NN 33899 470 9 is be VBZ 33899 470 10 practically practically RB 33899 470 11 non non JJ 33899 470 12 - - JJ 33899 470 13 existent existent NN 33899 470 14 in in IN 33899 470 15 this this DT 33899 470 16 country country NN 33899 470 17 , , , 33899 470 18 having have VBG 33899 470 19 been be VBN 33899 470 20 made make VBN 33899 470 21 exclusively exclusively RB 33899 470 22 in in IN 33899 470 23 Germany Germany NNP 33899 470 24 . . . 33899 471 1 Also also RB 33899 471 2 as as IN 33899 471 3 recent recent JJ 33899 471 4 improvements improvement NNS 33899 471 5 in in IN 33899 471 6 metal metal NN 33899 471 7 filament filament NN 33899 471 8 lamps lamp NNS 33899 471 9 have have VBP 33899 471 10 rendered render VBN 33899 471 11 it -PRON- PRP 33899 471 12 almost almost RB 33899 471 13 obsolete obsolete JJ 33899 471 14 for for IN 33899 471 15 ordinary ordinary JJ 33899 471 16 lighting lighting NN 33899 471 17 purposes purpose NNS 33899 471 18 , , , 33899 471 19 it -PRON- PRP 33899 471 20 is be VBZ 33899 471 21 , , , 33899 471 22 I -PRON- PRP 33899 471 23 think think VBP 33899 471 24 , , , 33899 471 25 very very RB 33899 471 26 doubtful doubtful JJ 33899 471 27 whether whether IN 33899 471 28 it -PRON- PRP 33899 471 29 is be VBZ 33899 471 30 still still RB 33899 471 31 manufactured manufacture VBN 33899 471 32 even even RB 33899 471 33 in in IN 33899 471 34 that that DT 33899 471 35 country country NN 33899 471 36 , , , 33899 471 37 and and CC 33899 471 38 hence hence RB 33899 471 39 I -PRON- PRP 33899 471 40 do do VBP 33899 471 41 not not RB 33899 471 42 propose propose VB 33899 471 43 to to TO 33899 471 44 waste waste VB 33899 471 45 space space NN 33899 471 46 in in IN 33899 471 47 an an DT 33899 471 48 extensive extensive JJ 33899 471 49 description description NN 33899 471 50 . . . 33899 472 1 It -PRON- PRP 33899 472 2 will will MD 33899 472 3 suffice suffice VB 33899 472 4 to to TO 33899 472 5 say say VB 33899 472 6 that that IN 33899 472 7 the the DT 33899 472 8 lamp lamp NN 33899 472 9 consists consist VBZ 33899 472 10 of of IN 33899 472 11 one one CD 33899 472 12 or or CC 33899 472 13 more more JJR 33899 472 14 straight straight JJ 33899 472 15 rods rod NNS 33899 472 16 or or CC 33899 472 17 filaments filament NNS 33899 472 18 of of IN 33899 472 19 a a DT 33899 472 20 refractory refractory JJ 33899 472 21 material material NN 33899 472 22 , , , 33899 472 23 which which WDT 33899 472 24 are be VBP 33899 472 25 semi semi RB 33899 472 26 - - JJ 33899 472 27 conducting conducting JJ 33899 472 28 to to IN 33899 472 29 the the DT 33899 472 30 electric electric JJ 33899 472 31 current current NN 33899 472 32 when when WRB 33899 472 33 hot hot JJ 33899 472 34 , , , 33899 472 35 but but CC 33899 472 36 non non JJ 33899 472 37 - - JJ 33899 472 38 conducting conducting JJ 33899 472 39 when when WRB 33899 472 40 cold cold JJ 33899 472 41 . . . 33899 473 1 To to TO 33899 473 2 commence commence VB 33899 473 3 with with IN 33899 473 4 the the DT 33899 473 5 filament filament NN 33899 473 6 must must MD 33899 473 7 be be VB 33899 473 8 heated heat VBN 33899 473 9 , , , 33899 473 10 and and CC 33899 473 11 in in IN 33899 473 12 the the DT 33899 473 13 lamps lamp NNS 33899 473 14 as as IN 33899 473 15 supplied supply VBN 33899 473 16 for for IN 33899 473 17 lantern lantern JJ 33899 473 18 work work NN 33899 473 19 this this DT 33899 473 20 is be VBZ 33899 473 21 usually usually RB 33899 473 22 done do VBN 33899 473 23 by by IN 33899 473 24 means mean NNS 33899 473 25 of of IN 33899 473 26 a a DT 33899 473 27 spirit spirit NN 33899 473 28 lamp lamp NN 33899 473 29 , , , 33899 473 30 which which WDT 33899 473 31 can can MD 33899 473 32 be be VB 33899 473 33 removed remove VBN 33899 473 34 immediately immediately RB 33899 473 35 the the DT 33899 473 36 current current NN 33899 473 37 begins begin VBZ 33899 473 38 to to TO 33899 473 39 pass pass VB 33899 473 40 , , , 33899 473 41 as as IN 33899 473 42 the the DT 33899 473 43 filament filament NN 33899 473 44 is be VBZ 33899 473 45 thereafter thereafter RB 33899 473 46 maintained maintain VBN 33899 473 47 at at IN 33899 473 48 a a DT 33899 473 49 white white JJ 33899 473 50 heat heat NN 33899 473 51 automatically automatically RB 33899 473 52 . . . 33899 474 1 A a DT 33899 474 2 three three CD 33899 474 3 - - HYPH 33899 474 4 filament filament NN 33899 474 5 Nernst Nernst NNP 33899 474 6 lamp lamp NN 33899 474 7 gives give VBZ 33899 474 8 as as RB 33899 474 9 much much JJ 33899 474 10 as as IN 33899 474 11 1000 1000 CD 33899 474 12 candles candle NNS 33899 474 13 , , , 33899 474 14 but but CC 33899 474 15 it -PRON- PRP 33899 474 16 is be VBZ 33899 474 17 extremely extremely RB 33899 474 18 hot hot JJ 33899 474 19 , , , 33899 474 20 and and CC 33899 474 21 the the DT 33899 474 22 light light NN 33899 474 23 rather rather RB 33899 474 24 diffuse diffuse NN 33899 474 25 . . . 33899 475 1 The the DT 33899 475 2 filaments filament NNS 33899 475 3 are be VBP 33899 475 4 also also RB 33899 475 5 very very RB 33899 475 6 fragile fragile JJ 33899 475 7 , , , 33899 475 8 so so RB 33899 475 9 on on IN 33899 475 10 the the DT 33899 475 11 whole whole NN 33899 475 12 the the DT 33899 475 13 lamp lamp NN 33899 475 14 was be VBD 33899 475 15 never never RB 33899 475 16 very very RB 33899 475 17 much much RB 33899 475 18 in in IN 33899 475 19 favour favour NN 33899 475 20 ; ; : 33899 475 21 but but CC 33899 475 22 on on IN 33899 475 23 the the DT 33899 475 24 other other JJ 33899 475 25 hand hand NN 33899 475 26 it -PRON- PRP 33899 475 27 consumed consume VBD 33899 475 28 very very RB 33899 475 29 little little JJ 33899 475 30 current current JJ 33899 475 31 , , , 33899 475 32 and and CC 33899 475 33 could could MD 33899 475 34 be be VB 33899 475 35 worked work VBN 33899 475 36 from from IN 33899 475 37 any any DT 33899 475 38 ordinary ordinary JJ 33899 475 39 house house NNP 33899 475 40 lighting lighting NNP 33899 475 41 main main NNP 33899 475 42 , , , 33899 475 43 points point NNS 33899 475 44 which which WDT 33899 475 45 led lead VBD 33899 475 46 to to IN 33899 475 47 its -PRON- PRP$ 33899 475 48 adoption adoption NN 33899 475 49 in in IN 33899 475 50 certain certain JJ 33899 475 51 cases case NNS 33899 475 52 . . . 33899 476 1 THE the DT 33899 476 2 ELECTRIC ELECTRIC NNP 33899 476 3 ARC.--We ARC.--We NNP 33899 476 4 now now RB 33899 476 5 come come VBP 33899 476 6 to to IN 33899 476 7 _ _ NNP 33899 476 8 the the DT 33899 476 9 _ _ NNP 33899 476 10 light light NN 33899 476 11 for for IN 33899 476 12 optical optical JJ 33899 476 13 lantern lantern JJ 33899 476 14 work work NN 33899 476 15 , , , 33899 476 16 the the DT 33899 476 17 brightest bright JJS 33899 476 18 , , , 33899 476 19 the the DT 33899 476 20 most most RBS 33899 476 21 concentrated concentrated JJ 33899 476 22 , , , 33899 476 23 the the DT 33899 476 24 cheapest cheap JJS 33899 476 25 , , , 33899 476 26 the the DT 33899 476 27 easiest easy JJS 33899 476 28 to to TO 33899 476 29 work work VB 33899 476 30 , , , 33899 476 31 in in IN 33899 476 32 fact fact NN 33899 476 33 , , , 33899 476 34 the the DT 33899 476 35 illuminant illuminant NN 33899 476 36 which which WDT 33899 476 37 combines combine VBZ 33899 476 38 all all PDT 33899 476 39 the the DT 33899 476 40 virtues virtue NNS 33899 476 41 and and CC 33899 476 42 but but CC 33899 476 43 few few JJ 33899 476 44 drawbacks drawback NNS 33899 476 45 , , , 33899 476 46 but but CC 33899 476 47 of of IN 33899 476 48 course course NN 33899 476 49 requires require VBZ 33899 476 50 one one CD 33899 476 51 indispensable indispensable JJ 33899 476 52 condition condition NN 33899 476 53 , , , 33899 476 54 viz viz NN 33899 476 55 . . . 33899 477 1 electric electric JJ 33899 477 2 current current NN 33899 477 3 laid lay VBD 33899 477 4 on on RP 33899 477 5 . . . 33899 478 1 This this DT 33899 478 2 current current NN 33899 478 3 may may MD 33899 478 4 be be VB 33899 478 5 of of IN 33899 478 6 any any DT 33899 478 7 voltage voltage NN 33899 478 8 from from IN 33899 478 9 70 70 CD 33899 478 10 - - SYM 33899 478 11 250 250 CD 33899 478 12 , , , 33899 478 13 or or CC 33899 478 14 even even RB 33899 478 15 higher high JJR 33899 478 16 ; ; : 33899 478 17 it -PRON- PRP 33899 478 18 may may MD 33899 478 19 be be VB 33899 478 20 continuous continuous JJ 33899 478 21 or or CC 33899 478 22 alternating alternating JJ 33899 478 23 , , , 33899 478 24 though though IN 33899 478 25 the the DT 33899 478 26 former former JJ 33899 478 27 is be VBZ 33899 478 28 to to TO 33899 478 29 be be VB 33899 478 30 preferred prefer VBN 33899 478 31 ; ; : 33899 478 32 and and CC 33899 478 33 it -PRON- PRP 33899 478 34 requires require VBZ 33899 478 35 a a DT 33899 478 36 cable cable NN 33899 478 37 for for IN 33899 478 38 _ _ NNP 33899 478 39 at at IN 33899 478 40 least least JJS 33899 478 41 _ _ NNP 33899 478 42 5 5 CD 33899 478 43 ampères ampère NNS 33899 478 44 , , , 33899 478 45 and and CC 33899 478 46 for for IN 33899 478 47 a a DT 33899 478 48 large large JJ 33899 478 49 hall hall NN 33899 478 50 10 10 CD 33899 478 51 or or CC 33899 478 52 12 12 CD 33899 478 53 ampères ampère NNS 33899 478 54 . . . 33899 479 1 The the DT 33899 479 2 simplest simple JJS 33899 479 3 form form NN 33899 479 4 of of IN 33899 479 5 arc arc NNP 33899 479 6 lamp lamp NN 33899 479 7 for for IN 33899 479 8 lantern lantern JJ 33899 479 9 purposes purpose NNS 33899 479 10 is be VBZ 33899 479 11 the the DT 33899 479 12 { { -LRB- 33899 479 13 45 45 CD 33899 479 14 } } -RRB- 33899 479 15 hand hand NN 33899 479 16 - - HYPH 33899 479 17 fed fed NN 33899 479 18 type type NN 33899 479 19 as as IN 33899 479 20 illustrated illustrate VBN 33899 479 21 in in IN 33899 479 22 Fig Fig NNP 33899 479 23 . . . 33899 480 1 26 26 CD 33899 480 2 . . . 33899 481 1 The the DT 33899 481 2 essential essential JJ 33899 481 3 feature feature NN 33899 481 4 is be VBZ 33899 481 5 the the DT 33899 481 6 pair pair NN 33899 481 7 of of IN 33899 481 8 carbon carbon NN 33899 481 9 rods rod NNS 33899 481 10 , , , 33899 481 11 the the DT 33899 481 12 remainder remainder NN 33899 481 13 of of IN 33899 481 14 the the DT 33899 481 15 apparatus apparatus NN 33899 481 16 consisting consisting NN 33899 481 17 of of IN 33899 481 18 mechanical mechanical JJ 33899 481 19 adjustments adjustment NNS 33899 481 20 to to TO 33899 481 21 ' ' `` 33899 481 22 feed feed VB 33899 481 23 ' ' '' 33899 481 24 these these DT 33899 481 25 as as IN 33899 481 26 they -PRON- PRP 33899 481 27 burn burn VBP 33899 481 28 away away RB 33899 481 29 , , , 33899 481 30 and and CC 33899 481 31 to to TO 33899 481 32 accurately accurately RB 33899 481 33 maintain maintain VB 33899 481 34 them -PRON- PRP 33899 481 35 in in IN 33899 481 36 their -PRON- PRP$ 33899 481 37 proper proper JJ 33899 481 38 positions position NNS 33899 481 39 and and CC 33899 481 40 in in IN 33899 481 41 the the DT 33899 481 42 optical optical JJ 33899 481 43 centre centre NN 33899 481 44 of of IN 33899 481 45 the the DT 33899 481 46 lantern lantern NNP 33899 481 47 . . . 33899 482 1 Just just RB 33899 482 2 because because IN 33899 482 3 the the DT 33899 482 4 electric electric JJ 33899 482 5 arc arc NN 33899 482 6 provides provide VBZ 33899 482 7 so so RB 33899 482 8 small small JJ 33899 482 9 and and CC 33899 482 10 concentrated concentrate VBD 33899 482 11 a a DT 33899 482 12 light light NN 33899 482 13 , , , 33899 482 14 it -PRON- PRP 33899 482 15 is be VBZ 33899 482 16 of of IN 33899 482 17 extreme extreme JJ 33899 482 18 importance importance NN 33899 482 19 that that IN 33899 482 20 the the DT 33899 482 21 centring centring NN 33899 482 22 should should MD 33899 482 23 be be VB 33899 482 24 exact exact JJ 33899 482 25 ; ; : 33899 482 26 and and CC 33899 482 27 hence hence RB 33899 482 28 mechanical mechanical JJ 33899 482 29 movements movement NNS 33899 482 30 are be VBP 33899 482 31 usually usually RB 33899 482 32 provided provide VBN 33899 482 33 for for IN 33899 482 34 this this DT 33899 482 35 which which WDT 33899 482 36 are be VBP 33899 482 37 unnecessary unnecessary JJ 33899 482 38 with with IN 33899 482 39 other other JJ 33899 482 40 illuminants illuminant NNS 33899 482 41 . . . 33899 483 1 [ [ -LRB- 33899 483 2 Illustration illustration NN 33899 483 3 : : : 33899 483 4 FIG FIG NNP 33899 483 5 . . . 33899 484 1 26.--Hand 26.--hand CD 33899 484 2 - - HYPH 33899 484 3 fed fed NNP 33899 484 4 Arc Arc NNP 33899 484 5 Lamp Lamp NNP 33899 484 6 . . . 33899 484 7 ] ] -RRB- 33899 485 1 The the DT 33899 485 2 whole whole JJ 33899 485 3 question question NN 33899 485 4 of of IN 33899 485 5 optical optical JJ 33899 485 6 adjustments adjustment NNS 33899 485 7 has have VBZ 33899 485 8 , , , 33899 485 9 however however RB 33899 485 10 , , , 33899 485 11 been be VBN 33899 485 12 left leave VBN 33899 485 13 over over RP 33899 485 14 for for IN 33899 485 15 a a DT 33899 485 16 future future JJ 33899 485 17 chapter chapter NN 33899 485 18 , , , 33899 485 19 as as IN 33899 485 20 it -PRON- PRP 33899 485 21 more more RBR 33899 485 22 or or CC 33899 485 23 less less RBR 33899 485 24 applies apply VBZ 33899 485 25 to to IN 33899 485 26 whatever whatever WDT 33899 485 27 illuminant illuminant NN 33899 485 28 is be VBZ 33899 485 29 used use VBN 33899 485 30 . . . 33899 486 1 The the DT 33899 486 2 illustration illustration NN 33899 486 3 shows show VBZ 33899 486 4 a a DT 33899 486 5 lamp lamp NN 33899 486 6 arranged arrange VBN 33899 486 7 for for IN 33899 486 8 continuous continuous JJ 33899 486 9 current current NN 33899 486 10 , , , 33899 486 11 the the DT 33899 486 12 upper upper JJ 33899 486 13 carbon carbon NN 33899 486 14 , , , 33899 486 15 which which WDT 33899 486 16 must must MD 33899 486 17 be be VB 33899 486 18 connected connect VBN 33899 486 19 to to IN 33899 486 20 the the DT 33899 486 21 _ _ NNP 33899 486 22 positive positive JJ 33899 486 23 _ _ NNP 33899 486 24 wire wire NN 33899 486 25 , , , 33899 486 26 being be VBG 33899 486 27 larger large JJR 33899 486 28 than than IN 33899 486 29 the the DT 33899 486 30 lower low JJR 33899 486 31 ( ( -LRB- 33899 486 32 the the DT 33899 486 33 negative negative NN 33899 486 34 ) ) -RRB- 33899 486 35 , , , 33899 486 36 and and CC 33899 486 37 very very RB 33899 486 38 slightly slightly RB 33899 486 39 behind behind IN 33899 486 40 it -PRON- PRP 33899 486 41 . . . 33899 487 1 The the DT 33899 487 2 light light NN 33899 487 3 from from IN 33899 487 4 a a DT 33899 487 5 continuous continuous JJ 33899 487 6 current current JJ 33899 487 7 arc arc NN 33899 487 8 lamp lamp NN 33899 487 9 comes come VBZ 33899 487 10 chiefly chiefly RB 33899 487 11 from from IN 33899 487 12 this this DT 33899 487 13 upper upper JJ 33899 487 14 or or CC 33899 487 15 positive positive JJ 33899 487 16 carbon carbon NN 33899 487 17 , , , 33899 487 18 { { -LRB- 33899 487 19 46 46 CD 33899 487 20 } } -RRB- 33899 487 21 which which WDT 33899 487 22 ' ' `` 33899 487 23 craters crater NNS 33899 487 24 ' ' '' 33899 487 25 as as IN 33899 487 26 it -PRON- PRP 33899 487 27 is be VBZ 33899 487 28 used use VBN 33899 487 29 , , , 33899 487 30 and and CC 33899 487 31 this this DT 33899 487 32 arrangement arrangement NN 33899 487 33 has have VBZ 33899 487 34 the the DT 33899 487 35 effect effect NN 33899 487 36 of of IN 33899 487 37 radiating radiate VBG 33899 487 38 the the DT 33899 487 39 light light NN 33899 487 40 in in IN 33899 487 41 the the DT 33899 487 42 direction direction NN 33899 487 43 required require VBN 33899 487 44 ( ( -LRB- 33899 487 45 Fig fig NN 33899 487 46 . . . 33899 488 1 27 27 CD 33899 488 2 ) ) -RRB- 33899 488 3 . . . 33899 489 1 The the DT 33899 489 2 positive positive JJ 33899 489 3 carbon carbon NN 33899 489 4 is be VBZ 33899 489 5 usually usually RB 33899 489 6 of of IN 33899 489 7 the the DT 33899 489 8 ' ' `` 33899 489 9 cored cored JJ 33899 489 10 ' ' '' 33899 489 11 type type NN 33899 489 12 , , , 33899 489 13 that that WDT 33899 489 14 is be VBZ 33899 489 15 provided provide VBN 33899 489 16 with with IN 33899 489 17 a a DT 33899 489 18 core core NN 33899 489 19 of of IN 33899 489 20 softer soft JJR 33899 489 21 carbon carbon NN 33899 489 22 , , , 33899 489 23 as as IN 33899 489 24 this this DT 33899 489 25 assists assist VBZ 33899 489 26 the the DT 33899 489 27 ' ' `` 33899 489 28 cratering cratere VBG 33899 489 29 ' ' '' 33899 489 30 action action NN 33899 489 31 , , , 33899 489 32 while while IN 33899 489 33 the the DT 33899 489 34 negative negative JJ 33899 489 35 is be VBZ 33899 489 36 generally generally RB 33899 489 37 used use VBN 33899 489 38 ' ' '' 33899 489 39 solid solid JJ 33899 489 40 , , , 33899 489 41 ' ' '' 33899 489 42 that that DT 33899 489 43 is be VBZ 33899 489 44 homogeneous homogeneous JJ 33899 489 45 right right RB 33899 489 46 through through RB 33899 489 47 . . . 33899 490 1 The the DT 33899 490 2 arc arc NN 33899 490 3 has have VBZ 33899 490 4 to to TO 33899 490 5 be be VB 33899 490 6 ' ' `` 33899 490 7 struck strike VBN 33899 490 8 ' ' '' 33899 490 9 in in IN 33899 490 10 the the DT 33899 490 11 first first JJ 33899 490 12 place place NN 33899 490 13 by by IN 33899 490 14 touching touch VBG 33899 490 15 the the DT 33899 490 16 carbons carbon NNS 33899 490 17 together together RB 33899 490 18 for for IN 33899 490 19 a a DT 33899 490 20 moment moment NN 33899 490 21 by by IN 33899 490 22 the the DT 33899 490 23 mechanical mechanical JJ 33899 490 24 means mean NNS 33899 490 25 provided provide VBN 33899 490 26 , , , 33899 490 27 and and CC 33899 490 28 then then RB 33899 490 29 separating separate VBG 33899 490 30 them -PRON- PRP 33899 490 31 to to IN 33899 490 32 the the DT 33899 490 33 working work VBG 33899 490 34 distance distance NN 33899 490 35 , , , 33899 490 36 which which WDT 33899 490 37 is be VBZ 33899 490 38 approximately approximately RB 33899 490 39 1/8 1/8 CD 33899 490 40 inch inch NN 33899 490 41 . . . 33899 491 1 They -PRON- PRP 33899 491 2 must must MD 33899 491 3 then then RB 33899 491 4 be be VB 33899 491 5 maintained maintain VBN 33899 491 6 at at IN 33899 491 7 that that DT 33899 491 8 distance distance NN 33899 491 9 by by IN 33899 491 10 ' ' `` 33899 491 11 feeding feeding NN 33899 491 12 ' ' '' 33899 491 13 as as IN 33899 491 14 they -PRON- PRP 33899 491 15 slowly slowly RB 33899 491 16 burn burn VBP 33899 491 17 away away RB 33899 491 18 , , , 33899 491 19 and and CC 33899 491 20 this this DT 33899 491 21 ' ' `` 33899 491 22 feeding feed VBG 33899 491 23 ' ' '' 33899 491 24 in in IN 33899 491 25 arc arc NN 33899 491 26 lamps lamp NNS 33899 491 27 for for IN 33899 491 28 lantern lantern JJ 33899 491 29 work work NN 33899 491 30 is be VBZ 33899 491 31 usually usually RB 33899 491 32 done do VBN 33899 491 33 by by IN 33899 491 34 hand hand NN 33899 491 35 , , , 33899 491 36 as as IN 33899 491 37 in in IN 33899 491 38 the the DT 33899 491 39 lamp lamp NN 33899 491 40 illustrated illustrate VBN 33899 491 41 in in IN 33899 491 42 Fig Fig NNP 33899 491 43 . . . 33899 492 1 26 26 CD 33899 492 2 , , , 33899 492 3 but but CC 33899 492 4 may may MD 33899 492 5 be be VB 33899 492 6 done do VBN 33899 492 7 by by IN 33899 492 8 an an DT 33899 492 9 automatic automatic JJ 33899 492 10 arrangement arrangement NN 33899 492 11 , , , 33899 492 12 as as IN 33899 492 13 will will MD 33899 492 14 be be VB 33899 492 15 described describe VBN 33899 492 16 later later RB 33899 492 17 . . . 33899 493 1 [ [ -LRB- 33899 493 2 Illustration illustration NN 33899 493 3 : : : 33899 493 4 FIG FIG NNP 33899 493 5 . . . 33899 494 1 27 27 CD 33899 494 2 . . . 33899 494 3 ] ] -RRB- 33899 495 1 The the DT 33899 495 2 current current NN 33899 495 3 is be VBZ 33899 495 4 really really RB 33899 495 5 carried carry VBN 33899 495 6 across across IN 33899 495 7 the the DT 33899 495 8 arc arc NN 33899 495 9 by by IN 33899 495 10 _ _ NNP 33899 495 11 convection convection NN 33899 495 12 _ _ NNP 33899 495 13 , , , 33899 495 14 or or CC 33899 495 15 in in IN 33899 495 16 other other JJ 33899 495 17 words word NNS 33899 495 18 conducted conduct VBN 33899 495 19 by by IN 33899 495 20 a a DT 33899 495 21 bridge bridge NN 33899 495 22 of of IN 33899 495 23 white white JJ 33899 495 24 hot hot JJ 33899 495 25 carbon carbon NN 33899 495 26 particles particle NNS 33899 495 27 , , , 33899 495 28 which which WDT 33899 495 29 continually continually RB 33899 495 30 stream stream VBP 33899 495 31 across across IN 33899 495 32 from from IN 33899 495 33 the the DT 33899 495 34 positive positive JJ 33899 495 35 carbon carbon NN 33899 495 36 to to IN 33899 495 37 the the DT 33899 495 38 negative negative JJ 33899 495 39 , , , 33899 495 40 and and CC 33899 495 41 this this DT 33899 495 42 bridge bridge NN 33899 495 43 , , , 33899 495 44 while while IN 33899 495 45 conducting conduct VBG 33899 495 46 the the DT 33899 495 47 current current NN 33899 495 48 , , , 33899 495 49 interposes interpose VBZ 33899 495 50 a a DT 33899 495 51 very very RB 33899 495 52 considerable considerable JJ 33899 495 53 _ _ NNP 33899 495 54 resistance resistance NN 33899 495 55 _ _ NNP 33899 495 56 ( ( -LRB- 33899 495 57 otherwise otherwise RB 33899 495 58 it -PRON- PRP 33899 495 59 would would MD 33899 495 60 not not RB 33899 495 61 of of RB 33899 495 62 course course NN 33899 495 63 become become VBN 33899 495 64 hot hot JJ 33899 495 65 ) ) -RRB- 33899 495 66 . . . 33899 496 1 A a DT 33899 496 2 certain certain JJ 33899 496 3 potential potential NN 33899 496 4 or or CC 33899 496 5 tension tension NN 33899 496 6 is be VBZ 33899 496 7 therefore therefore RB 33899 496 8 necessary necessary JJ 33899 496 9 if if IN 33899 496 10 a a DT 33899 496 11 given give VBN 33899 496 12 current current NN 33899 496 13 is be VBZ 33899 496 14 to to TO 33899 496 15 be be VB 33899 496 16 maintained maintain VBN 33899 496 17 , , , 33899 496 18 and and CC 33899 496 19 this this DT 33899 496 20 potential potential NN 33899 496 21 has have VBZ 33899 496 22 to to TO 33899 496 23 be be VB 33899 496 24 greater great JJR 33899 496 25 the the DT 33899 496 26 longer long JJR 33899 496 27 the the DT 33899 496 28 arc arc NN 33899 496 29 and and CC 33899 496 30 also also RB 33899 496 31 ( ( -LRB- 33899 496 32 though though IN 33899 496 33 not not RB 33899 496 34 in in IN 33899 496 35 direct direct JJ 33899 496 36 proportion proportion NN 33899 496 37 ) ) -RRB- 33899 496 38 the the DT 33899 496 39 smaller small JJR 33899 496 40 the the DT 33899 496 41 carbons carbon NNS 33899 496 42 . . . 33899 497 1 When when WRB 33899 497 2 , , , 33899 497 3 however however RB 33899 497 4 , , , 33899 497 5 everything everything NN 33899 497 6 is be VBZ 33899 497 7 in in IN 33899 497 8 the the DT 33899 497 9 best good JJS 33899 497 10 proportion proportion NN 33899 497 11 , , , 33899 497 12 _ _ NNP 33899 497 13 i.e. i.e. FW 33899 497 14 _ _ NNP 33899 497 15 length length NN 33899 497 16 of of IN 33899 497 17 arc arc NN 33899 497 18 , , , 33899 497 19 size size NN 33899 497 20 of of IN 33899 497 21 carbons carbon NNS 33899 497 22 , , , 33899 497 23 and and CC 33899 497 24 current current JJ 33899 497 25 passing passing NN 33899 497 26 , , , 33899 497 27 the the DT 33899 497 28 potential potential NN 33899 497 29 at at IN 33899 497 30 the the DT 33899 497 31 arc arc NNP 33899 497 32 lamp lamp NN 33899 497 33 terminals terminal NNS 33899 497 34 required require VBN 33899 497 35 is be VBZ 33899 497 36 approximately approximately RB 33899 497 37 45 45 CD 33899 497 38 volts volt NNS 33899 497 39 , , , 33899 497 40 and and CC 33899 497 41 this this DT 33899 497 42 may may MD 33899 497 43 be be VB 33899 497 44 taken take VBN 33899 497 45 as as IN 33899 497 46 a a DT 33899 497 47 fixed fix VBN 33899 497 48 figure figure NN 33899 497 49 for for IN 33899 497 50 any any DT 33899 497 51 current current NN 33899 497 52 . . . 33899 498 1 The the DT 33899 498 2 length length NN 33899 498 3 of of IN 33899 498 4 arc arc NN 33899 498 5 to to TO 33899 498 6 give give VB 33899 498 7 the the DT 33899 498 8 best good JJS 33899 498 9 results result NNS 33899 498 10 may may MD 33899 498 11 also also RB 33899 498 12 be be VB 33899 498 13 taken take VBN 33899 498 14 { { -LRB- 33899 498 15 47 47 CD 33899 498 16 } } -RRB- 33899 498 17 as as IN 33899 498 18 approximately approximately RB 33899 498 19 fixed fix VBN 33899 498 20 at at IN 33899 498 21 1/8 1/8 CD 33899 498 22 inch inch NN 33899 498 23 , , , 33899 498 24 and and CC 33899 498 25 the the DT 33899 498 26 _ _ NNP 33899 498 27 variable variable NN 33899 498 28 _ _ NNP 33899 498 29 factor factor NN 33899 498 30 for for IN 33899 498 31 different different JJ 33899 498 32 currents current NNS 33899 498 33 as as IN 33899 498 34 required require VBN 33899 498 35 is be VBZ 33899 498 36 provided provide VBN 33899 498 37 by by IN 33899 498 38 altering alter VBG 33899 498 39 the the DT 33899 498 40 sizes size NNS 33899 498 41 of of IN 33899 498 42 carbons carbon NNS 33899 498 43 employed employ VBN 33899 498 44 . . . 33899 499 1 The the DT 33899 499 2 error error NN 33899 499 3 must must MD 33899 499 4 not not RB 33899 499 5 be be VB 33899 499 6 made make VBN 33899 499 7 , , , 33899 499 8 however however RB 33899 499 9 , , , 33899 499 10 of of IN 33899 499 11 assuming assume VBG 33899 499 12 that that IN 33899 499 13 an an DT 33899 499 14 E.M.F. E.M.F. NNP 33899 500 1 of of IN 33899 500 2 45 45 CD 33899 500 3 volts volt NNS 33899 500 4 is be VBZ 33899 500 5 sufficient sufficient JJ 33899 500 6 to to TO 33899 500 7 work work VB 33899 500 8 an an DT 33899 500 9 arc arc NN 33899 500 10 lamp lamp NN 33899 500 11 , , , 33899 500 12 as as IN 33899 500 13 the the DT 33899 500 14 minimum minimum NN 33899 500 15 in in IN 33899 500 16 practice practice NN 33899 500 17 is be VBZ 33899 500 18 at at RB 33899 500 19 least least RBS 33899 500 20 65 65 CD 33899 500 21 volts volt NNS 33899 500 22 , , , 33899 500 23 and and CC 33899 500 24 100 100 CD 33899 500 25 or or CC 33899 500 26 even even RB 33899 500 27 200 200 CD 33899 500 28 volts volt NNS 33899 500 29 are be VBP 33899 500 30 advantageous advantageous JJ 33899 500 31 . . . 33899 501 1 I -PRON- PRP 33899 501 2 have have VBP 33899 501 3 come come VBN 33899 501 4 across across IN 33899 501 5 more more JJR 33899 501 6 than than IN 33899 501 7 one one CD 33899 501 8 private private JJ 33899 501 9 generating generating NN 33899 501 10 installation installation NN 33899 501 11 where where WRB 33899 501 12 the the DT 33899 501 13 innocent innocent JJ 33899 501 14 owner owner NN 33899 501 15 has have VBZ 33899 501 16 put put VBN 33899 501 17 in in IN 33899 501 18 a a DT 33899 501 19 dynamo dynamo NN 33899 501 20 for for IN 33899 501 21 45 45 CD 33899 501 22 or or CC 33899 501 23 50 50 CD 33899 501 24 volts volt NNS 33899 501 25 , , , 33899 501 26 depending depend VBG 33899 501 27 upon upon IN 33899 501 28 some some DT 33899 501 29 carelessly carelessly RB 33899 501 30 written write VBN 33899 501 31 statement statement NN 33899 501 32 that that IN 33899 501 33 this this DT 33899 501 34 is be VBZ 33899 501 35 sufficient sufficient JJ 33899 501 36 . . . 33899 502 1 _ _ NNP 33899 502 2 Why why WRB 33899 502 3 _ _ NNP 33899 502 4 a a DT 33899 502 5 higher high JJR 33899 502 6 E.M.F. e.m.f. NN 33899 503 1 is be VBZ 33899 503 2 required require VBN 33899 503 3 can can MD 33899 503 4 be be VB 33899 503 5 simply simply RB 33899 503 6 explained explain VBN 33899 503 7 . . . 33899 504 1 Take take VB 33899 504 2 for for IN 33899 504 3 instance instance NN 33899 504 4 an an DT 33899 504 5 average average JJ 33899 504 6 hand hand NN 33899 504 7 - - HYPH 33899 504 8 fed fed NNP 33899 504 9 arc arc NNP 33899 504 10 lamp lamp NN 33899 504 11 as as IN 33899 504 12 used use VBN 33899 504 13 for for IN 33899 504 14 lantern lantern JJ 33899 504 15 work work NN 33899 504 16 and and CC 33899 504 17 consuming consuming NN 33899 504 18 , , , 33899 504 19 say say VB 33899 504 20 , , , 33899 504 21 10 10 CD 33899 504 22 ampères ampère NNS 33899 504 23 . . . 33899 505 1 Take take VB 33899 505 2 also also RB 33899 505 3 , , , 33899 505 4 as as IN 33899 505 5 a a DT 33899 505 6 fact fact NN 33899 505 7 , , , 33899 505 8 the the DT 33899 505 9 statement statement NN 33899 505 10 given give VBN 33899 505 11 above above IN 33899 505 12 that that IN 33899 505 13 the the DT 33899 505 14 necessary necessary JJ 33899 505 15 E.M.F. E.M.F. NNP 33899 506 1 at at IN 33899 506 2 the the DT 33899 506 3 actual actual JJ 33899 506 4 terminals terminal NNS 33899 506 5 of of IN 33899 506 6 the the DT 33899 506 7 arc arc NNP 33899 506 8 lamp lamp NN 33899 506 9 may may MD 33899 506 10 be be VB 33899 506 11 accepted accept VBN 33899 506 12 as as IN 33899 506 13 a a DT 33899 506 14 constant constant NN 33899 506 15 at at IN 33899 506 16 45 45 CD 33899 506 17 volts volt NNS 33899 506 18 , , , 33899 506 19 and and CC 33899 506 20 reverting revert VBG 33899 506 21 to to IN 33899 506 22 the the DT 33899 506 23 equation equation NN 33899 506 24 given give VBN 33899 506 25 on on IN 33899 506 26 page page NN 33899 506 27 40 40 CD 33899 506 28 , , , 33899 506 29 C C NNP 33899 506 30 = = SYM 33899 506 31 E e NN 33899 506 32 / / SYM 33899 506 33 R r NN 33899 506 34 , , , 33899 506 35 and and CC 33899 506 36 substituting substitute VBG 33899 506 37 these these DT 33899 506 38 figures figure NNS 33899 506 39 we -PRON- PRP 33899 506 40 get-- get-- NNP 33899 506 41 Current current NN 33899 506 42 ( ( -LRB- 33899 506 43 10 10 CD 33899 506 44 ampères ampère NNS 33899 506 45 ) ) -RRB- 33899 506 46 = = NFP 33899 506 47 E e NN 33899 506 48 ( ( -LRB- 33899 506 49 45 45 CD 33899 506 50 volts volt NNS 33899 506 51 ) ) -RRB- 33899 506 52 / / NFP 33899 506 53 R r NN 33899 506 54 ( ( -LRB- 33899 506 55 Resistance Resistance NNP 33899 506 56 of of IN 33899 506 57 Arc Arc NNP 33899 506 58 ) ) -RRB- 33899 506 59 . . . 33899 507 1 It -PRON- PRP 33899 507 2 is be VBZ 33899 507 3 therefore therefore RB 33899 507 4 obvious obvious JJ 33899 507 5 that that IN 33899 507 6 under under IN 33899 507 7 these these DT 33899 507 8 exact exact JJ 33899 507 9 conditions condition NNS 33899 507 10 the the DT 33899 507 11 resistance resistance NN 33899 507 12 or or CC 33899 507 13 back back RB 33899 507 14 E.M.F. E.M.F. NNP 33899 508 1 of of IN 33899 508 2 the the DT 33899 508 3 arc arc NN 33899 508 4 , , , 33899 508 5 as as IN 33899 508 6 it -PRON- PRP 33899 508 7 is be VBZ 33899 508 8 termed term VBN 33899 508 9 , , , 33899 508 10 must must MD 33899 508 11 equal equal VB 33899 508 12 4.5 4.5 CD 33899 508 13 ohms ohm NNS 33899 508 14 . . . 33899 509 1 Now now RB 33899 509 2 suppose suppose VB 33899 509 3 the the DT 33899 509 4 lamp lamp NN 33899 509 5 left leave VBN 33899 509 6 for for IN 33899 509 7 a a DT 33899 509 8 few few JJ 33899 509 9 seconds second NNS 33899 509 10 unattended unattende VBN 33899 509 11 , , , 33899 509 12 while while IN 33899 509 13 the the DT 33899 509 14 carbons carbon NNS 33899 509 15 are be VBP 33899 509 16 burning burn VBG 33899 509 17 away away RB 33899 509 18 and and CC 33899 509 19 the the DT 33899 509 20 arc arc NN 33899 509 21 is be VBZ 33899 509 22 lengthening lengthen VBG 33899 509 23 ; ; : 33899 509 24 in in IN 33899 509 25 a a DT 33899 509 26 very very RB 33899 509 27 few few JJ 33899 509 28 moments moment NNS 33899 509 29 the the DT 33899 509 30 resistance resistance NN 33899 509 31 will will MD 33899 509 32 have have VB 33899 509 33 increased increase VBN 33899 509 34 , , , 33899 509 35 owing owe VBG 33899 509 36 to to IN 33899 509 37 the the DT 33899 509 38 greater great JJR 33899 509 39 distance distance NN 33899 509 40 between between IN 33899 509 41 the the DT 33899 509 42 carbons carbon NNS 33899 509 43 , , , 33899 509 44 and and CC 33899 509 45 we -PRON- PRP 33899 509 46 will will MD 33899 509 47 suppose suppose VB 33899 509 48 it -PRON- PRP 33899 509 49 to to TO 33899 509 50 have have VB 33899 509 51 become become VBN 33899 509 52 5 5 CD 33899 509 53 ohms ohms JJ 33899 509 54 instead instead RB 33899 509 55 of of IN 33899 509 56 4.5 4.5 CD 33899 509 57 . . . 33899 510 1 The the DT 33899 510 2 current current JJ 33899 510 3 passing passing NN 33899 510 4 will will MD 33899 510 5 now now RB 33899 510 6 be be VB 33899 510 7 45 45 CD 33899 510 8 / / SYM 33899 510 9 5 5 CD 33899 510 10 = = SYM 33899 510 11 9 9 CD 33899 510 12 ampères ampère NNS 33899 510 13 only only RB 33899 510 14 . . . 33899 511 1 In in IN 33899 511 2 other other JJ 33899 511 3 words word NNS 33899 511 4 , , , 33899 511 5 a a DT 33899 511 6 very very RB 33899 511 7 slight slight JJ 33899 511 8 lengthening lengthening NN 33899 511 9 of of IN 33899 511 10 the the DT 33899 511 11 arc arc NN 33899 511 12 has have VBZ 33899 511 13 reduced reduce VBN 33899 511 14 the the DT 33899 511 15 current current NN 33899 511 16 , , , 33899 511 17 and and CC 33899 511 18 therefore therefore RB 33899 511 19 the the DT 33899 511 20 light light NN 33899 511 21 , , , 33899 511 22 by by IN 33899 511 23 10 10 CD 33899 511 24 per per NN 33899 511 25 cent cent NN 33899 511 26 . . . 33899 512 1 Not not RB 33899 512 2 only only RB 33899 512 3 so so RB 33899 512 4 , , , 33899 512 5 but but CC 33899 512 6 45 45 CD 33899 512 7 volts volt NNS 33899 512 8 being be VBG 33899 512 9 needed need VBN 33899 512 10 to to TO 33899 512 11 maintain maintain VB 33899 512 12 an an DT 33899 512 13 arc arc NN 33899 512 14 of of IN 33899 512 15 { { -LRB- 33899 512 16 48 48 CD 33899 512 17 } } -RRB- 33899 512 18 normal normal JJ 33899 512 19 length length NN 33899 512 20 , , , 33899 512 21 it -PRON- PRP 33899 512 22 is be VBZ 33899 512 23 insufficient insufficient JJ 33899 512 24 to to TO 33899 512 25 maintain maintain VB 33899 512 26 a a DT 33899 512 27 longer long JJR 33899 512 28 one one CD 33899 512 29 , , , 33899 512 30 and and CC 33899 512 31 in in IN 33899 512 32 practice practice NN 33899 512 33 the the DT 33899 512 34 effect effect NN 33899 512 35 of of IN 33899 512 36 leaving leave VBG 33899 512 37 an an DT 33899 512 38 arc arc NN 33899 512 39 under under IN 33899 512 40 these these DT 33899 512 41 conditions condition NNS 33899 512 42 to to IN 33899 512 43 itself -PRON- PRP 33899 512 44 for for IN 33899 512 45 even even RB 33899 512 46 a a DT 33899 512 47 few few JJ 33899 512 48 seconds second NNS 33899 512 49 is be VBZ 33899 512 50 that that IN 33899 512 51 it -PRON- PRP 33899 512 52 _ _ NNP 33899 512 53 goes go VBZ 33899 512 54 out out RP 33899 512 55 _ _ NNP 33899 512 56 , , , 33899 512 57 to to IN 33899 512 58 the the DT 33899 512 59 annoyance annoyance NN 33899 512 60 of of IN 33899 512 61 the the DT 33899 512 62 lecturer lecturer NN 33899 512 63 and and CC 33899 512 64 the the DT 33899 512 65 confusion confusion NN 33899 512 66 of of IN 33899 512 67 the the DT 33899 512 68 operator operator NN 33899 512 69 . . . 33899 513 1 It -PRON- PRP 33899 513 2 is be VBZ 33899 513 3 just just RB 33899 513 4 _ _ NNP 33899 513 5 possible possible JJ 33899 513 6 _ _ NNP 33899 513 7 to to TO 33899 513 8 work work VB 33899 513 9 an an DT 33899 513 10 arc arc NN 33899 513 11 lamp lamp NN 33899 513 12 with with IN 33899 513 13 a a DT 33899 513 14 total total JJ 33899 513 15 E.M.F. E.M.F. NNP 33899 514 1 of of IN 33899 514 2 45 45 CD 33899 514 3 volts volt NNS 33899 514 4 by by IN 33899 514 5 giving give VBG 33899 514 6 one one PRP 33899 514 7 's 's POS 33899 514 8 whole whole JJ 33899 514 9 attention attention NN 33899 514 10 to to IN 33899 514 11 it -PRON- PRP 33899 514 12 and and CC 33899 514 13 never never RB 33899 514 14 taking take VBG 33899 514 15 the the DT 33899 514 16 hand hand NN 33899 514 17 off off IN 33899 514 18 the the DT 33899 514 19 feeding feeding NN 33899 514 20 handle handle NN 33899 514 21 ; ; : 33899 514 22 but but CC 33899 514 23 in in IN 33899 514 24 practice practice NN 33899 514 25 no no DT 33899 514 26 one one NN 33899 514 27 with with IN 33899 514 28 any any DT 33899 514 29 experience experience NN 33899 514 30 would would MD 33899 514 31 attempt attempt VB 33899 514 32 it -PRON- PRP 33899 514 33 . . . 33899 515 1 The the DT 33899 515 2 arc arc NN 33899 515 3 would would MD 33899 515 4 almost almost RB 33899 515 5 certainly certainly RB 33899 515 6 go go VB 33899 515 7 out out RP 33899 515 8 several several JJ 33899 515 9 times time NNS 33899 515 10 during during IN 33899 515 11 the the DT 33899 515 12 exhibition exhibition NN 33899 515 13 . . . 33899 516 1 Now now RB 33899 516 2 , , , 33899 516 3 take take VB 33899 516 4 an an DT 33899 516 5 example example NN 33899 516 6 of of IN 33899 516 7 a a DT 33899 516 8 similar similar JJ 33899 516 9 arc arc NN 33899 516 10 lamp lamp NN 33899 516 11 consuming consume VBG 33899 516 12 10 10 CD 33899 516 13 ampères ampère NNS 33899 516 14 but but CC 33899 516 15 worked work VBD 33899 516 16 from from IN 33899 516 17 a a DT 33899 516 18 supply supply NN 33899 516 19 of of IN 33899 516 20 200 200 CD 33899 516 21 volts volt NNS 33899 516 22 . . . 33899 517 1 Our -PRON- PRP$ 33899 517 2 equation equation NN 33899 517 3 C c NN 33899 517 4 = = SYM 33899 517 5 E e NN 33899 517 6 / / SYM 33899 517 7 R r NN 33899 517 8 must must MD 33899 517 9 then then RB 33899 517 10 obviously obviously RB 33899 517 11 become become VB 33899 517 12 C C NNP 33899 517 13 ( ( -LRB- 33899 517 14 10 10 CD 33899 517 15 ampères ampère NNS 33899 517 16 ) ) -RRB- 33899 517 17 = = NFP 33899 517 18 E e NN 33899 517 19 ( ( -LRB- 33899 517 20 200 200 CD 33899 517 21 volts volt NNS 33899 517 22 ) ) -RRB- 33899 517 23 / / NFP 33899 517 24 Total Total NNP 33899 517 25 Resistance Resistance NNP 33899 517 26 ( ( -LRB- 33899 517 27 20 20 CD 33899 517 28 ohms ohm NNS 33899 517 29 ) ) -RRB- 33899 517 30 . . . 33899 518 1 The the DT 33899 518 2 resistance resistance NN 33899 518 3 of of IN 33899 518 4 the the DT 33899 518 5 arc arc NN 33899 518 6 itself -PRON- PRP 33899 518 7 being be VBG 33899 518 8 the the DT 33899 518 9 same same JJ 33899 518 10 as as IN 33899 518 11 before before RB 33899 518 12 , , , 33899 518 13 viz viz NN 33899 518 14 . . . 33899 519 1 4.5 4.5 CD 33899 519 2 ohms ohms RB 33899 519 3 , , , 33899 519 4 it -PRON- PRP 33899 519 5 is be VBZ 33899 519 6 obviously obviously RB 33899 519 7 necessary necessary JJ 33899 519 8 to to TO 33899 519 9 put put VB 33899 519 10 an an DT 33899 519 11 _ _ NNP 33899 519 12 extra extra JJ 33899 519 13 _ _ NNP 33899 519 14 fixed fix VBN 33899 519 15 resistance resistance NN 33899 519 16 equal equal JJ 33899 519 17 to to IN 33899 519 18 15.5 15.5 CD 33899 519 19 ohms ohm NNS 33899 519 20 in in IN 33899 519 21 series series NN 33899 519 22 with with IN 33899 519 23 it -PRON- PRP 33899 519 24 in in IN 33899 519 25 order order NN 33899 519 26 to to TO 33899 519 27 make make VB 33899 519 28 up up RP 33899 519 29 the the DT 33899 519 30 total total NN 33899 519 31 of of IN 33899 519 32 20 20 CD 33899 519 33 ohms ohm NNS 33899 519 34 . . . 33899 520 1 _ _ NNP 33899 520 2 Now now RB 33899 520 3 _ _ NNP 33899 520 4 leave leave VBP 33899 520 5 the the DT 33899 520 6 arc arc NN 33899 520 7 unattended unattende VBN 33899 520 8 until until IN 33899 520 9 the the DT 33899 520 10 resistance resistance NN 33899 520 11 of of IN 33899 520 12 4.5 4.5 CD 33899 520 13 ohms ohm NNS 33899 520 14 has have VBZ 33899 520 15 again again RB 33899 520 16 become become VBN 33899 520 17 5 5 CD 33899 520 18 ohms ohm NNS 33899 520 19 ; ; : 33899 520 20 the the DT 33899 520 21 only only JJ 33899 520 22 effect effect NN 33899 520 23 is be VBZ 33899 520 24 that that IN 33899 520 25 our -PRON- PRP$ 33899 520 26 current current NN 33899 520 27 , , , 33899 520 28 instead instead RB 33899 520 29 of of IN 33899 520 30 remaining remain VBG 33899 520 31 at at IN 33899 520 32 10 10 CD 33899 520 33 ampères ampère NNS 33899 520 34 , , , 33899 520 35 has have VBZ 33899 520 36 become become VBN 33899 520 37 200 200 CD 33899 520 38 / / SYM 33899 520 39 20.5 20.5 CD 33899 520 40 or or CC 33899 520 41 9.8 9.8 CD 33899 520 42 nearly nearly RB 33899 520 43 , , , 33899 520 44 a a DT 33899 520 45 difference difference NN 33899 520 46 which which WDT 33899 520 47 is be VBZ 33899 520 48 imperceptible imperceptible JJ 33899 520 49 . . . 33899 521 1 This this DT 33899 521 2 is be VBZ 33899 521 3 not not RB 33899 521 4 all all DT 33899 521 5 , , , 33899 521 6 for for IN 33899 521 7 it -PRON- PRP 33899 521 8 is be VBZ 33899 521 9 an an DT 33899 521 10 elementary elementary JJ 33899 521 11 rule rule NN 33899 521 12 in in IN 33899 521 13 electrical electrical JJ 33899 521 14 science science NN 33899 521 15 that that IN 33899 521 16 the the DT 33899 521 17 total total JJ 33899 521 18 E.M.F. E.M.F. NNP 33899 522 1 of of IN 33899 522 2 any any DT 33899 522 3 circuit circuit NN 33899 522 4 distributes distribute VBZ 33899 522 5 itself -PRON- PRP 33899 522 6 along along IN 33899 522 7 that that DT 33899 522 8 circuit circuit NN 33899 522 9 in in IN 33899 522 10 proportion proportion NN 33899 522 11 to to IN 33899 522 12 the the DT 33899 522 13 distribution distribution NN 33899 522 14 of of IN 33899 522 15 resistance resistance NN 33899 522 16 . . . 33899 523 1 In in IN 33899 523 2 other other JJ 33899 523 3 words word NNS 33899 523 4 , , , 33899 523 5 our -PRON- PRP$ 33899 523 6 original original JJ 33899 523 7 E.M.F. e.m.f. NN 33899 524 1 of of IN 33899 524 2 200 200 CD 33899 524 3 volts volt NNS 33899 524 4 will will MD 33899 524 5 so so RB 33899 524 6 distribute distribute VB 33899 524 7 itself -PRON- PRP 33899 524 8 as as IN 33899 524 9 to to TO 33899 524 10 reserve reserve VB 33899 524 11 , , , 33899 524 12 so so RB 33899 524 13 to to TO 33899 524 14 speak speak VB 33899 524 15 , , , 33899 524 16 an an DT 33899 524 17 E.M.F. E.M.F. NNP 33899 525 1 of of IN 33899 525 2 45 45 CD 33899 525 3 volts volt NNS 33899 525 4 for for IN 33899 525 5 the the DT 33899 525 6 arc arc NN 33899 525 7 , , , 33899 525 8 while while IN 33899 525 9 the the DT 33899 525 10 resistance resistance NN 33899 525 11 of of IN 33899 525 12 this this DT 33899 525 13 remains remain VBZ 33899 525 14 at at IN 33899 525 15 4.5 4.5 CD 33899 525 16 ohms ohm NNS 33899 525 17 , , , 33899 525 18 but but CC 33899 525 19 directly directly RB 33899 525 20 this this DT 33899 525 21 resistance resistance NN 33899 525 22 increases increase VBZ 33899 525 23 , , , 33899 525 24 the the DT 33899 525 25 E.M.F. E.M.F. NNP 33899 526 1 at at IN 33899 526 2 the the DT 33899 526 3 arc arc NNP 33899 526 4 lamp lamp NN 33899 526 5 terminals terminal NNS 33899 526 6 automatically automatically RB 33899 526 7 rises rise VBZ 33899 526 8 , , , 33899 526 9 and and CC 33899 526 10 therefore therefore RB 33899 526 11 the the DT 33899 526 12 actual actual JJ 33899 526 13 diminution diminution NN 33899 526 14 in in IN 33899 526 15 current current NN 33899 526 16 is be VBZ 33899 526 17 even even RB 33899 526 18 less less JJR 33899 526 19 than than IN 33899 526 20 the the DT 33899 526 21 figures figure NNS 33899 526 22 above above IN 33899 526 23 quoted quote VBD 33899 526 24 . . . 33899 527 1 { { -LRB- 33899 527 2 49 49 CD 33899 527 3 } } -RRB- 33899 527 4 Should Should MD 33899 527 5 the the DT 33899 527 6 arc arc NN 33899 527 7 tend tend VB 33899 527 8 to to TO 33899 527 9 ' ' `` 33899 527 10 break break VB 33899 527 11 ' ' '' 33899 527 12 or or CC 33899 527 13 go go VB 33899 527 14 out out RB 33899 527 15 , , , 33899 527 16 the the DT 33899 527 17 resistance resistance NN 33899 527 18 across across IN 33899 527 19 it -PRON- PRP 33899 527 20 automatically automatically RB 33899 527 21 becomes become VBZ 33899 527 22 infinite infinite JJ 33899 527 23 and and CC 33899 527 24 the the DT 33899 527 25 _ _ NNP 33899 527 26 whole whole NN 33899 527 27 _ _ NNP 33899 527 28 200 200 CD 33899 527 29 volts volt NNS 33899 527 30 is be VBZ 33899 527 31 at at IN 33899 527 32 that that DT 33899 527 33 moment moment NN 33899 527 34 available available JJ 33899 527 35 to to TO 33899 527 36 prevent prevent VB 33899 527 37 the the DT 33899 527 38 occurrence occurrence NN 33899 527 39 . . . 33899 528 1 Under under IN 33899 528 2 these these DT 33899 528 3 conditions condition NNS 33899 528 4 , , , 33899 528 5 therefore therefore RB 33899 528 6 , , , 33899 528 7 the the DT 33899 528 8 operator operator NN 33899 528 9 can can MD 33899 528 10 safely safely RB 33899 528 11 leave leave VB 33899 528 12 the the DT 33899 528 13 arc arc NN 33899 528 14 for for IN 33899 528 15 many many JJ 33899 528 16 minutes minute NNS 33899 528 17 at at IN 33899 528 18 a a DT 33899 528 19 time time NN 33899 528 20 . . . 33899 529 1 In in IN 33899 529 2 carrying carry VBG 33899 529 3 out out RP 33899 529 4 experimental experimental JJ 33899 529 5 work work NN 33899 529 6 I -PRON- PRP 33899 529 7 have have VBP 33899 529 8 often often RB 33899 529 9 left leave VBN 33899 529 10 the the DT 33899 529 11 lantern lantern NN 33899 529 12 , , , 33899 529 13 walked walk VBD 33899 529 14 up up RB 33899 529 15 to to IN 33899 529 16 the the DT 33899 529 17 screen screen NN 33899 529 18 , , , 33899 529 19 discussed discuss VBD 33899 529 20 results result NNS 33899 529 21 with with IN 33899 529 22 a a DT 33899 529 23 friend friend NN 33899 529 24 , , , 33899 529 25 and and CC 33899 529 26 walked walk VBD 33899 529 27 back back RB 33899 529 28 , , , 33899 529 29 and and CC 33899 529 30 the the DT 33899 529 31 arc arc NN 33899 529 32 has have VBZ 33899 529 33 shown show VBN 33899 529 34 no no DT 33899 529 35 signs sign NNS 33899 529 36 of of IN 33899 529 37 misbehaviour misbehaviour NN 33899 529 38 whatever whatever WDT 33899 529 39 . . . 33899 530 1 [ [ -LRB- 33899 530 2 Illustration illustration NN 33899 530 3 : : : 33899 530 4 Fig Fig NNP 33899 530 5 . . . 33899 531 1 28.--Resistance 28.--resistance CD 33899 531 2 . . . 33899 531 3 ] ] -RRB- 33899 532 1 In in IN 33899 532 2 practice practice NN 33899 532 3 any any DT 33899 532 4 current current NN 33899 532 5 from from IN 33899 532 6 100 100 CD 33899 532 7 volts volt NNS 33899 532 8 to to IN 33899 532 9 250 250 CD 33899 532 10 volts volt NNS 33899 532 11 may may MD 33899 532 12 be be VB 33899 532 13 considered consider VBN 33899 532 14 as as RB 33899 532 15 satisfactory satisfactory JJ 33899 532 16 for for IN 33899 532 17 lantern lantern JJ 33899 532 18 work work NN 33899 532 19 with with IN 33899 532 20 a a DT 33899 532 21 suitable suitable JJ 33899 532 22 resistance resistance NN 33899 532 23 . . . 33899 533 1 Less Less JJR 33899 533 2 than than IN 33899 533 3 this this DT 33899 533 4 involves involve VBZ 33899 533 5 feeding feed VBG 33899 533 6 the the DT 33899 533 7 arc arc NN 33899 533 8 rather rather RB 33899 533 9 frequently frequently RB 33899 533 10 , , , 33899 533 11 and and CC 33899 533 12 more more JJR 33899 533 13 may may MD 33899 533 14 give give VB 33899 533 15 a a DT 33899 533 16 nasty nasty JJ 33899 533 17 shock shock NN 33899 533 18 , , , 33899 533 19 should should MD 33899 533 20 the the DT 33899 533 21 operator operator NN 33899 533 22 inadvertently inadvertently RB 33899 533 23 touch touch VB 33899 533 24 a a DT 33899 533 25 live live JJ 33899 533 26 wire wire NN 33899 533 27 , , , 33899 533 28 though though IN 33899 533 29 I -PRON- PRP 33899 533 30 have have VBP 33899 533 31 worked work VBN 33899 533 32 an an DT 33899 533 33 arc arc NN 33899 533 34 lamp lamp NN 33899 533 35 on on IN 33899 533 36 a a DT 33899 533 37 current current NN 33899 533 38 of of IN 33899 533 39 as as RB 33899 533 40 much much JJ 33899 533 41 as as IN 33899 533 42 500 500 CD 33899 533 43 volts volt NNS 33899 533 44 . . . 33899 534 1 The the DT 33899 534 2 _ _ NNP 33899 534 3 resistance resistance NN 33899 534 4 _ _ NNP 33899 534 5 usually usually RB 33899 534 6 consists consist VBZ 33899 534 7 of of IN 33899 534 8 a a DT 33899 534 9 suitable suitable JJ 33899 534 10 length length NN 33899 534 11 of of IN 33899 534 12 wire wire NN 33899 534 13 of of IN 33899 534 14 high high JJ 33899 534 15 resistance resistance NN 33899 534 16 ( ( -LRB- 33899 534 17 Iron Iron NNP 33899 534 18 , , , 33899 534 19 German german JJ 33899 534 20 Silver silver NN 33899 534 21 , , , 33899 534 22 or or CC 33899 534 23 those those DT 33899 534 24 alloys alloy NNS 33899 534 25 known know VBN 33899 534 26 as as IN 33899 534 27 Platinoid Platinoid NNP 33899 534 28 , , , 33899 534 29 Eureka Eureka NNP 33899 534 30 , , , 33899 534 31 Manganin Manganin NNP 33899 534 32 , , , 33899 534 33 Beacon Beacon NNP 33899 534 34 , , , 33899 534 35 & & CC 33899 534 36 c. c. NNP 33899 534 37 , , , 33899 534 38 are be VBP 33899 534 39 most most RBS 33899 534 40 commonly commonly RB 33899 534 41 used use VBN 33899 534 42 ) ) -RRB- 33899 534 43 wound wind VBN 33899 534 44 in in IN 33899 534 45 spirals spiral NNS 33899 534 46 on on IN 33899 534 47 a a DT 33899 534 48 frame frame NN 33899 534 49 , , , 33899 534 50 and and CC 33899 534 51 is be VBZ 33899 534 52 generally generally RB 33899 534 53 supplied supply VBN 33899 534 54 adjustable adjustable JJ 33899 534 55 ( ( -LRB- 33899 534 56 Fig fig NN 33899 534 57 . . . 33899 535 1 28 28 CD 33899 535 2 ) ) -RRB- 33899 535 3 , , , 33899 535 4 so so IN 33899 535 5 that that IN 33899 535 6 more more RBR 33899 535 7 or or CC 33899 535 8 less less RBR 33899 535 9 current current JJ 33899 535 10 may may MD 33899 535 11 be be VB 33899 535 12 used use VBN 33899 535 13 as as IN 33899 535 14 desired desire VBN 33899 535 15 . . . 33899 536 1 These these DT 33899 536 2 resistances resistance NNS 33899 536 3 get get VBP 33899 536 4 pretty pretty RB 33899 536 5 hot hot JJ 33899 536 6 in in IN 33899 536 7 use use NN 33899 536 8 , , , 33899 536 9 and and CC 33899 536 10 care care NN 33899 536 11 must must MD 33899 536 12 be be VB 33899 536 13 taken take VBN 33899 536 14 that that IN 33899 536 15 they -PRON- PRP 33899 536 16 are be VBP 33899 536 17 placed place VBN 33899 536 18 where where WRB 33899 536 19 they -PRON- PRP 33899 536 20 can can MD 33899 536 21 not not RB 33899 536 22 scorch scorch VB 33899 536 23 woodwork woodwork NN 33899 536 24 , , , 33899 536 25 & & CC 33899 536 26 c. c. NNP 33899 536 27 , , , 33899 536 28 and and CC 33899 536 29 in in IN 33899 536 30 cases case NNS 33899 536 31 where where WRB 33899 536 32 the the DT 33899 536 33 lantern lantern NN 33899 536 34 is be VBZ 33899 536 35 a a DT 33899 536 36 fixture fixture NN 33899 536 37 it -PRON- PRP 33899 536 38 is be VBZ 33899 536 39 a a DT 33899 536 40 good good JJ 33899 536 41 plan plan NN 33899 536 42 to to TO 33899 536 43 have have VB 33899 536 44 the the DT 33899 536 45 resistance resistance NN 33899 536 46 bolted bolt VBN 33899 536 47 up up RP 33899 536 48 against against IN 33899 536 49 a a DT 33899 536 50 wall wall NN 33899 536 51 once once RB 33899 536 52 and and CC 33899 536 53 for for IN 33899 536 54 all all DT 33899 536 55 . . . 33899 537 1 The the DT 33899 537 2 resistance resistance NN 33899 537 3 may may MD 33899 537 4 be be VB 33899 537 5 placed place VBN 33899 537 6 anywhere anywhere RB 33899 537 7 in in IN 33899 537 8 the the DT 33899 537 9 circuit circuit NN 33899 537 10 , , , 33899 537 11 so so RB 33899 537 12 long long RB 33899 537 13 as as IN 33899 537 14 the the DT 33899 537 15 current current NN 33899 537 16 passes pass VBZ 33899 537 17 through through IN 33899 537 18 it -PRON- PRP 33899 537 19 , , , 33899 537 20 then then RB 33899 537 21 through through IN 33899 537 22 the the DT 33899 537 23 arc arc NNP 33899 537 24 lamp lamp NN 33899 537 25 ( ( -LRB- 33899 537 26 or or CC 33899 537 27 _ _ NNP 33899 537 28 vice vice NN 33899 537 29 versâ versâ NNP 33899 537 30 _ _ NNP 33899 537 31 ) ) -RRB- 33899 537 32 , , , 33899 537 33 and and CC 33899 537 34 back back RB 33899 537 35 to to IN 33899 537 36 the the DT 33899 537 37 other other JJ 33899 537 38 { { -LRB- 33899 537 39 50 50 CD 33899 537 40 } } -RRB- 33899 537 41 pole pole NN 33899 537 42 of of IN 33899 537 43 the the DT 33899 537 44 supply supply NN 33899 537 45 main main RB 33899 537 46 ; ; : 33899 537 47 it -PRON- PRP 33899 537 48 does do VBZ 33899 537 49 not not RB 33899 537 50 matter matter VB 33899 537 51 in in IN 33899 537 52 the the DT 33899 537 53 least least JJS 33899 537 54 whereabouts whereabout NNS 33899 537 55 it -PRON- PRP 33899 537 56 comes come VBZ 33899 537 57 . . . 33899 538 1 In in IN 33899 538 2 cases case NNS 33899 538 3 , , , 33899 538 4 however however RB 33899 538 5 , , , 33899 538 6 where where WRB 33899 538 7 one one CD 33899 538 8 pole pole NN 33899 538 9 of of IN 33899 538 10 the the DT 33899 538 11 supply supply NN 33899 538 12 main main JJ 33899 538 13 is be VBZ 33899 538 14 _ _ NNP 33899 538 15 earthed earth VBD 33899 538 16 _ _ NNP 33899 538 17 , , , 33899 538 18 it -PRON- PRP 33899 538 19 is be VBZ 33899 538 20 a a DT 33899 538 21 good good JJ 33899 538 22 thing thing NN 33899 538 23 to to TO 33899 538 24 place place VB 33899 538 25 the the DT 33899 538 26 resistance resistance NN 33899 538 27 in in IN 33899 538 28 the the DT 33899 538 29 ' ' `` 33899 538 30 live live JJ 33899 538 31 ' ' '' 33899 538 32 side side NN 33899 538 33 , , , 33899 538 34 as as IN 33899 538 35 this this DT 33899 538 36 keeps keep VBZ 33899 538 37 the the DT 33899 538 38 arc arc NN 33899 538 39 lamp lamp NN 33899 538 40 within within IN 33899 538 41 45 45 CD 33899 538 42 volts volt NNS 33899 538 43 of of IN 33899 538 44 earth earth NN 33899 538 45 potential potential NN 33899 538 46 while while IN 33899 538 47 it -PRON- PRP 33899 538 48 is be VBZ 33899 538 49 working work VBG 33899 538 50 , , , 33899 538 51 to to IN 33899 538 52 the the DT 33899 538 53 comfort comfort NN 33899 538 54 of of IN 33899 538 55 the the DT 33899 538 56 operator operator NN 33899 538 57 should should MD 33899 538 58 he -PRON- PRP 33899 538 59 touch touch VB 33899 538 60 a a DT 33899 538 61 terminal terminal NN 33899 538 62 or or CC 33899 538 63 wire wire NN 33899 538 64 , , , 33899 538 65 though though RB 33899 538 66 with with IN 33899 538 67 an an DT 33899 538 68 ordinary ordinary JJ 33899 538 69 lighting lighting NN 33899 538 70 main main NN 33899 538 71 there there EX 33899 538 72 is be VBZ 33899 538 73 no no DT 33899 538 74 real real JJ 33899 538 75 fear fear NN 33899 538 76 of of IN 33899 538 77 a a DT 33899 538 78 dangerous dangerous JJ 33899 538 79 shock shock NN 33899 538 80 in in IN 33899 538 81 any any DT 33899 538 82 case case NN 33899 538 83 . . . 33899 539 1 The the DT 33899 539 2 _ _ NNP 33899 539 3 amount amount NN 33899 539 4 of of IN 33899 539 5 current current JJ 33899 539 6 required require VBN 33899 539 7 _ _ NNP 33899 539 8 depends depend VBZ 33899 539 9 of of IN 33899 539 10 course course NN 33899 539 11 on on IN 33899 539 12 the the DT 33899 539 13 size size NN 33899 539 14 of of IN 33899 539 15 the the DT 33899 539 16 sheet sheet NN 33899 539 17 , , , 33899 539 18 length length NN 33899 539 19 of of IN 33899 539 20 the the DT 33899 539 21 hall hall NN 33899 539 22 , , , 33899 539 23 and and CC 33899 539 24 density density NN 33899 539 25 or or CC 33899 539 26 otherwise otherwise RB 33899 539 27 of of IN 33899 539 28 the the DT 33899 539 29 slides slide NNS 33899 539 30 ; ; : 33899 539 31 but but CC 33899 539 32 it -PRON- PRP 33899 539 33 is be VBZ 33899 539 34 usually usually RB 33899 539 35 accepted accept VBN 33899 539 36 in in IN 33899 539 37 practice practice NN 33899 539 38 that that IN 33899 539 39 the the DT 33899 539 40 efficient efficient JJ 33899 539 41 light light NN 33899 539 42 from from IN 33899 539 43 a a DT 33899 539 44 continuous continuous JJ 33899 539 45 current current JJ 33899 539 46 arc arc NN 33899 539 47 lamp lamp NN 33899 539 48 equals equal VBZ 33899 539 49 100 100 CD 33899 539 50 candles candle NNS 33899 539 51 per per IN 33899 539 52 ampère ampère NN 33899 539 53 , , , 33899 539 54 and and CC 33899 539 55 therefore therefore RB 33899 539 56 a a DT 33899 539 57 10-ampère 10-ampère CD 33899 539 58 arc arc NN 33899 539 59 will will MD 33899 539 60 give give VB 33899 539 61 1000 1000 CD 33899 539 62 candles candle NNS 33899 539 63 . . . 33899 540 1 This this DT 33899 540 2 is be VBZ 33899 540 3 sufficient sufficient JJ 33899 540 4 for for IN 33899 540 5 all all DT 33899 540 6 ordinary ordinary JJ 33899 540 7 halls hall NNS 33899 540 8 and and CC 33899 540 9 slides slide NNS 33899 540 10 , , , 33899 540 11 but but CC 33899 540 12 where where WRB 33899 540 13 these these DT 33899 540 14 latter latter JJ 33899 540 15 are be VBP 33899 540 16 very very RB 33899 540 17 dense dense JJ 33899 540 18 , , , 33899 540 19 as as IN 33899 540 20 for for IN 33899 540 21 example example NN 33899 540 22 with with IN 33899 540 23 the the DT 33899 540 24 Lumière Lumière NNP 33899 540 25 three three CD 33899 540 26 - - HYPH 33899 540 27 colour colour NN 33899 540 28 process process NN 33899 540 29 , , , 33899 540 30 as as RB 33899 540 31 much much JJ 33899 540 32 as as IN 33899 540 33 20 20 CD 33899 540 34 or or CC 33899 540 35 25 25 CD 33899 540 36 ampères ampère NNS 33899 540 37 may may MD 33899 540 38 be be VB 33899 540 39 required require VBN 33899 540 40 . . . 33899 541 1 In in IN 33899 541 2 these these DT 33899 541 3 cases case NNS 33899 541 4 some some DT 33899 541 5 special special JJ 33899 541 6 precautions precaution NNS 33899 541 7 must must MD 33899 541 8 be be VB 33899 541 9 taken take VBN 33899 541 10 for for IN 33899 541 11 keeping keep VBG 33899 541 12 the the DT 33899 541 13 slides slide NNS 33899 541 14 cool cool JJ 33899 541 15 , , , 33899 541 16 or or CC 33899 541 17 the the DT 33899 541 18 result result NN 33899 541 19 may may MD 33899 541 20 be be VB 33899 541 21 disastrous disastrous JJ 33899 541 22 , , , 33899 541 23 but but CC 33899 541 24 this this DT 33899 541 25 is be VBZ 33899 541 26 a a DT 33899 541 27 question question NN 33899 541 28 that that WDT 33899 541 29 will will MD 33899 541 30 be be VB 33899 541 31 referred refer VBN 33899 541 32 to to IN 33899 541 33 in in IN 33899 541 34 a a DT 33899 541 35 later later JJ 33899 541 36 chapter chapter NN 33899 541 37 . . . 33899 542 1 A a DT 33899 542 2 current current NN 33899 542 3 of of IN 33899 542 4 10 10 CD 33899 542 5 ampères ampère NNS 33899 542 6 is be VBZ 33899 542 7 pretty pretty RB 33899 542 8 safe safe JJ 33899 542 9 for for IN 33899 542 10 all all DT 33899 542 11 ordinary ordinary JJ 33899 542 12 slides slide NNS 33899 542 13 , , , 33899 542 14 and and CC 33899 542 15 may may MD 33899 542 16 be be VB 33899 542 17 taken take VBN 33899 542 18 as as IN 33899 542 19 the the DT 33899 542 20 normal normal JJ 33899 542 21 current current NN 33899 542 22 used use VBN 33899 542 23 in in IN 33899 542 24 large large JJ 33899 542 25 halls hall NNS 33899 542 26 , , , 33899 542 27 though though IN 33899 542 28 in in IN 33899 542 29 arranging arranging NN 33899 542 30 for for IN 33899 542 31 the the DT 33899 542 32 wiring wiring NN 33899 542 33 it -PRON- PRP 33899 542 34 is be VBZ 33899 542 35 as as RB 33899 542 36 well well RB 33899 542 37 to to TO 33899 542 38 stipulate stipulate VB 33899 542 39 for for IN 33899 542 40 at at RB 33899 542 41 least least RBS 33899 542 42 12 12 CD 33899 542 43 or or CC 33899 542 44 even even RB 33899 542 45 15 15 CD 33899 542 46 ampères ampère NNS 33899 542 47 , , , 33899 542 48 especially especially RB 33899 542 49 as as IN 33899 542 50 there there EX 33899 542 51 must must MD 33899 542 52 necessarily necessarily RB 33899 542 53 be be VB 33899 542 54 a a DT 33899 542 55 momentary momentary JJ 33899 542 56 increase increase NN 33899 542 57 of of IN 33899 542 58 current current NN 33899 542 59 at at IN 33899 542 60 the the DT 33899 542 61 instant instant NN 33899 542 62 the the DT 33899 542 63 arc arc NN 33899 542 64 is be VBZ 33899 542 65 ' ' `` 33899 542 66 struck strike VBN 33899 542 67 . . . 33899 542 68 ' ' '' 33899 543 1 VARIETIES varieties JJ 33899 543 2 OF of IN 33899 543 3 HAND HAND NNP 33899 543 4 - - HYPH 33899 543 5 FED FED NNP 33899 543 6 ARC ARC NNP 33899 543 7 LAMPS.--The lamps.--the JJ 33899 543 8 pattern pattern NN 33899 543 9 of of IN 33899 543 10 hand hand NN 33899 543 11 - - HYPH 33899 543 12 fed fed NNP 33899 543 13 arc arc NNP 33899 543 14 lamp lamp NNP 33899 543 15 illustrated illustrate VBN 33899 543 16 in in IN 33899 543 17 Fig Fig NNP 33899 543 18 . . . 33899 544 1 26 26 CD 33899 544 2 is be VBZ 33899 544 3 only only RB 33899 544 4 typical typical JJ 33899 544 5 of of IN 33899 544 6 many many JJ 33899 544 7 of of IN 33899 544 8 the the DT 33899 544 9 same same JJ 33899 544 10 general general JJ 33899 544 11 design design NN 33899 544 12 , , , 33899 544 13 and and CC 33899 544 14 there there EX 33899 544 15 are be VBP 33899 544 16 others other NNS 33899 544 17 in in IN 33899 544 18 which which WDT 33899 544 19 the the DT 33899 544 20 design design NN 33899 544 21 itself -PRON- PRP 33899 544 22 is be VBZ 33899 544 23 fundamentally fundamentally RB 33899 544 24 different different JJ 33899 544 25 . . . 33899 545 1 Of of IN 33899 545 2 these these DT 33899 545 3 the the DT 33899 545 4 ' ' `` 33899 545 5 Scissors Scissors NNPS 33899 545 6 ' ' POS 33899 545 7 arc arc NN 33899 545 8 lamp lamp NN 33899 545 9 made make VBN 33899 545 10 by by IN 33899 545 11 several several JJ 33899 545 12 firms firm NNS 33899 545 13 deserves deserve VBZ 33899 545 14 mention mention NN 33899 545 15 on on IN 33899 545 16 account account NN 33899 545 17 of of IN 33899 545 18 its -PRON- PRP$ 33899 545 19 simplicity simplicity NN 33899 545 20 and and CC 33899 545 21 cheapness cheapness NN 33899 545 22 . . . 33899 546 1 As as IN 33899 546 2 its -PRON- PRP$ 33899 546 3 name name NN 33899 546 4 implies imply VBZ 33899 546 5 , , , 33899 546 6 the the DT 33899 546 7 mechanism mechanism NN 33899 546 8 resembles resemble VBZ 33899 546 9 a a DT 33899 546 10 pair pair NN 33899 546 11 of of IN 33899 546 12 scissors scissor NNS 33899 546 13 , , , 33899 546 14 the the DT 33899 546 15 carbons carbon NNS 33899 546 16 being be VBG 33899 546 17 attached attach VBN 33899 546 18 to to IN 33899 546 19 the the DT 33899 546 20 ends end NNS 33899 546 21 of of IN 33899 546 22 a a DT 33899 546 23 pair pair NN 33899 546 24 of of IN 33899 546 25 levers lever NNS 33899 546 26 hinged hinge VBN 33899 546 27 together together RB 33899 546 28 { { -LRB- 33899 546 29 51 51 CD 33899 546 30 } } -RRB- 33899 546 31 ( ( -LRB- 33899 546 32 Fig fig NN 33899 546 33 . . . 33899 547 1 29 29 CD 33899 547 2 ) ) -RRB- 33899 547 3 . . . 33899 548 1 In in IN 33899 548 2 this this DT 33899 548 3 lamp lamp NN 33899 548 4 centring centre VBG 33899 548 5 movements movement NNS 33899 548 6 are be VBP 33899 548 7 usually usually RB 33899 548 8 dispensed dispense VBN 33899 548 9 with with IN 33899 548 10 , , , 33899 548 11 the the DT 33899 548 12 arc arc NN 33899 548 13 being be VBG 33899 548 14 clamped clamp VBN 33899 548 15 on on IN 33899 548 16 to to IN 33899 548 17 a a DT 33899 548 18 tray tray NN 33899 548 19 pin pin NN 33899 548 20 as as IN 33899 548 21 in in IN 33899 548 22 the the DT 33899 548 23 case case NN 33899 548 24 of of IN 33899 548 25 a a DT 33899 548 26 limelight limelight NN 33899 548 27 jet jet NN 33899 548 28 . . . 33899 549 1 This this DT 33899 549 2 is be VBZ 33899 549 3 not not RB 33899 549 4 , , , 33899 549 5 of of IN 33899 549 6 course course NN 33899 549 7 , , , 33899 549 8 so so RB 33899 549 9 convenient convenient JJ 33899 549 10 , , , 33899 549 11 and and CC 33899 549 12 a a DT 33899 549 13 further further JJ 33899 549 14 disadvantage disadvantage NN 33899 549 15 of of IN 33899 549 16 this this DT 33899 549 17 pattern pattern NN 33899 549 18 arc arc NNP 33899 549 19 lamp lamp NN 33899 549 20 is be VBZ 33899 549 21 that that IN 33899 549 22 the the DT 33899 549 23 feeding feeding NN 33899 549 24 process process NN 33899 549 25 gradually gradually RB 33899 549 26 alters alter VBZ 33899 549 27 the the DT 33899 549 28 position position NN 33899 549 29 and and CC 33899 549 30 angle angle NN 33899 549 31 of of IN 33899 549 32 the the DT 33899 549 33 carbons carbon NNS 33899 549 34 . . . 33899 550 1 In in IN 33899 550 2 fact fact NN 33899 550 3 , , , 33899 550 4 the the DT 33899 550 5 one one CD 33899 550 6 great great JJ 33899 550 7 merit merit NN 33899 550 8 of of IN 33899 550 9 the the DT 33899 550 10 lamp lamp NN 33899 550 11 is be VBZ 33899 550 12 cheapness cheapness NN 33899 550 13 , , , 33899 550 14 and and CC 33899 550 15 where where WRB 33899 550 16 expense expense NN 33899 550 17 is be VBZ 33899 550 18 an an DT 33899 550 19 object object NN 33899 550 20 , , , 33899 550 21 it -PRON- PRP 33899 550 22 should should MD 33899 550 23 certainly certainly RB 33899 550 24 be be VB 33899 550 25 considered consider VBN 33899 550 26 . . . 33899 551 1 [ [ -LRB- 33899 551 2 Illustration illustration NN 33899 551 3 : : : 33899 551 4 FIG FIG NNP 33899 551 5 . . . 33899 552 1 29.--'Scissors 29.--'Scissors NNP 33899 552 2 ' ' POS 33899 552 3 Arc Arc NNP 33899 552 4 Lamp Lamp NNP 33899 552 5 . . . 33899 552 6 ] ] -RRB- 33899 553 1 Yet yet RB 33899 553 2 another another DT 33899 553 3 arc arc NN 33899 553 4 lamp lamp NN 33899 553 5 deserving deserving NN 33899 553 6 of of IN 33899 553 7 mention mention NN 33899 553 8 is be VBZ 33899 553 9 the the DT 33899 553 10 ' ' `` 33899 553 11 Parallel Parallel NNP 33899 553 12 , , , 33899 553 13 ' ' '' 33899 553 14 a a DT 33899 553 15 name name NN 33899 553 16 again again RB 33899 553 17 very very RB 33899 553 18 aptly aptly RB 33899 553 19 chosen choose VBN 33899 553 20 , , , 33899 553 21 as as IN 33899 553 22 the the DT 33899 553 23 two two CD 33899 553 24 carbons carbon NNS 33899 553 25 are be VBP 33899 553 26 either either CC 33899 553 27 exactly exactly RB 33899 553 28 parallel parallel JJ 33899 553 29 to to IN 33899 553 30 each each DT 33899 553 31 other other JJ 33899 553 32 or or CC 33899 553 33 very very RB 33899 553 34 slightly slightly RB 33899 553 35 inclined inclined JJ 33899 553 36 . . . 33899 554 1 In in IN 33899 554 2 the the DT 33899 554 3 former former JJ 33899 554 4 case case NN 33899 554 5 the the DT 33899 554 6 arc arc NN 33899 554 7 has have VBZ 33899 554 8 to to TO 33899 554 9 be be VB 33899 554 10 ' ' `` 33899 554 11 struck strike VBN 33899 554 12 ' ' '' 33899 554 13 by by IN 33899 554 14 touching touch VBG 33899 554 15 the the DT 33899 554 16 ends end NNS 33899 554 17 of of IN 33899 554 18 the the DT 33899 554 19 carbon carbon NN 33899 554 20 rods rod NNS 33899 554 21 with with IN 33899 554 22 a a DT 33899 554 23 piece piece NN 33899 554 24 of of IN 33899 554 25 metal metal NN 33899 554 26 or or CC 33899 554 27 carbon carbon NN 33899 554 28 . . . 33899 555 1 Of of IN 33899 555 2 the the DT 33899 555 3 actual actual JJ 33899 555 4 manipulation manipulation NN 33899 555 5 of of IN 33899 555 6 this this DT 33899 555 7 lamp lamp NN 33899 555 8 I -PRON- PRP 33899 555 9 have have VBP 33899 555 10 had have VBN 33899 555 11 very very RB 33899 555 12 little little JJ 33899 555 13 practical practical JJ 33899 555 14 experience experience NN 33899 555 15 , , , 33899 555 16 but but CC 33899 555 17 I -PRON- PRP 33899 555 18 have have VBP 33899 555 19 heard hear VBN 33899 555 20 it -PRON- PRP 33899 555 21 well well RB 33899 555 22 spoken speak VBN 33899 555 23 of of IN 33899 555 24 , , , 33899 555 25 though though IN 33899 555 26 I -PRON- PRP 33899 555 27 believe believe VBP 33899 555 28 it -PRON- PRP 33899 555 29 has have VBZ 33899 555 30 so so RB 33899 555 31 far far RB 33899 555 32 only only RB 33899 555 33 been be VBN 33899 555 34 made make VBN 33899 555 35 for for IN 33899 555 36 currents current NNS 33899 555 37 of of IN 33899 555 38 5 5 CD 33899 555 39 ampères ampère NNS 33899 555 40 or or CC 33899 555 41 so so RB 33899 555 42 . . . 33899 556 1 Yet yet RB 33899 556 2 another another DT 33899 556 3 type type NN 33899 556 4 which which WDT 33899 556 5 must must MD 33899 556 6 not not RB 33899 556 7 be be VB 33899 556 8 ignored ignore VBN 33899 556 9 is be VBZ 33899 556 10 the the DT 33899 556 11 ' ' `` 33899 556 12 Right right UH 33899 556 13 - - HYPH 33899 556 14 angled angle VBN 33899 556 15 ' ' '' 33899 556 16 pattern pattern NN 33899 556 17 ( ( -LRB- 33899 556 18 Fig fig NN 33899 556 19 . . . 33899 557 1 30 30 CD 33899 557 2 ) ) -RRB- 33899 557 3 , , , 33899 557 4 a a DT 33899 557 5 name name NN 33899 557 6 again again RB 33899 557 7 self self NN 33899 557 8 - - HYPH 33899 557 9 descriptive descriptive JJ 33899 557 10 . . . 33899 558 1 The the DT 33899 558 2 horizontal horizontal JJ 33899 558 3 carbon carbon NN 33899 558 4 is be VBZ 33899 558 5 the the DT 33899 558 6 positive positive JJ 33899 558 7 , , , 33899 558 8 and and CC 33899 558 9 the the DT 33899 558 10 vertical vertical JJ 33899 558 11 the the DT 33899 558 12 { { -LRB- 33899 558 13 52 52 CD 33899 558 14 } } -RRB- 33899 558 15 negative negative JJ 33899 558 16 , , , 33899 558 17 and and CC 33899 558 18 this this DT 33899 558 19 lamp lamp NN 33899 558 20 again again RB 33899 558 21 is be VBZ 33899 558 22 made make VBN 33899 558 23 by by IN 33899 558 24 several several JJ 33899 558 25 manufacturers manufacturer NNS 33899 558 26 in in IN 33899 558 27 slightly slightly RB 33899 558 28 different different JJ 33899 558 29 forms form NNS 33899 558 30 . . . 33899 559 1 This this DT 33899 559 2 pattern pattern NN 33899 559 3 lamp lamp NN 33899 559 4 is be VBZ 33899 559 5 in in IN 33899 559 6 my -PRON- PRP$ 33899 559 7 experience experience NN 33899 559 8 the the DT 33899 559 9 best good JJS 33899 559 10 of of IN 33899 559 11 all all DT 33899 559 12 for for IN 33899 559 13 _ _ NNP 33899 559 14 small small JJ 33899 559 15 _ _ NNP 33899 559 16 currents current NNS 33899 559 17 , , , 33899 559 18 say say VBP 33899 559 19 , , , 33899 559 20 of of IN 33899 559 21 5 5 CD 33899 559 22 ampères ampère NNS 33899 559 23 or or CC 33899 559 24 so so RB 33899 559 25 , , , 33899 559 26 but but CC 33899 559 27 inferior inferior JJ 33899 559 28 to to IN 33899 559 29 Fig Fig NNP 33899 559 30 . . . 33899 560 1 26 26 CD 33899 560 2 for for IN 33899 560 3 currents current NNS 33899 560 4 of of IN 33899 560 5 10 10 CD 33899 560 6 ampères ampère NNS 33899 560 7 or or CC 33899 560 8 more more JJR 33899 560 9 . . . 33899 561 1 This this DT 33899 561 2 last last JJ 33899 561 3 remark remark NN 33899 561 4 perhaps perhaps RB 33899 561 5 hardly hardly RB 33899 561 6 applies apply VBZ 33899 561 7 to to IN 33899 561 8 _ _ NNP 33899 561 9 alternating alternate VBG 33899 561 10 _ _ NNP 33899 561 11 currents current NNS 33899 561 12 , , , 33899 561 13 which which WDT 33899 561 14 , , , 33899 561 15 however however RB 33899 561 16 , , , 33899 561 17 I -PRON- PRP 33899 561 18 have have VBP 33899 561 19 not not RB 33899 561 20 yet yet RB 33899 561 21 discussed discuss VBN 33899 561 22 . . . 33899 562 1 I -PRON- PRP 33899 562 2 can can MD 33899 562 3 not not RB 33899 562 4 conclude conclude VB 33899 562 5 this this DT 33899 562 6 brief brief JJ 33899 562 7 category category NN 33899 562 8 of of IN 33899 562 9 arc arc NN 33899 562 10 lamps lamp NNS 33899 562 11 without without IN 33899 562 12 referring refer VBG 33899 562 13 to to IN 33899 562 14 the the DT 33899 562 15 _ _ NNP 33899 562 16 enclosed enclose VBN 33899 562 17 _ _ NNP 33899 562 18 pattern pattern NN 33899 562 19 , , , 33899 562 20 of of IN 33899 562 21 which which WDT 33899 562 22 the the DT 33899 562 23 ' ' `` 33899 562 24 Westminster Westminster NNP 33899 562 25 ' ' '' 33899 562 26 is be VBZ 33899 562 27 perhaps perhaps RB 33899 562 28 the the DT 33899 562 29 best well RBS 33899 562 30 - - HYPH 33899 562 31 known know VBN 33899 562 32 and and CC 33899 562 33 most most RBS 33899 562 34 popular popular JJ 33899 562 35 ( ( -LRB- 33899 562 36 Fig fig NN 33899 562 37 . . . 33899 563 1 31 31 CD 33899 563 2 ) ) -RRB- 33899 563 3 . . . 33899 564 1 [ [ -LRB- 33899 564 2 Illustration illustration NN 33899 564 3 : : : 33899 564 4 FIG FIG NNP 33899 564 5 . . . 33899 565 1 30.--'Right 30.--'right CD 33899 565 2 - - HYPH 33899 565 3 angled angle VBN 33899 565 4 ' ' '' 33899 565 5 Arc Arc NNP 33899 565 6 Lamp Lamp NNP 33899 565 7 . . . 33899 565 8 ] ] -RRB- 33899 566 1 This this DT 33899 566 2 is be VBZ 33899 566 3 a a DT 33899 566 4 lamp lamp NN 33899 566 5 of of IN 33899 566 6 the the DT 33899 566 7 right right RB 33899 566 8 - - HYPH 33899 566 9 angled angle VBN 33899 566 10 type type NN 33899 566 11 , , , 33899 566 12 but but CC 33899 566 13 the the DT 33899 566 14 arc arc NN 33899 566 15 burns burn VBZ 33899 566 16 in in IN 33899 566 17 a a DT 33899 566 18 cylindrical cylindrical JJ 33899 566 19 glass glass NN 33899 566 20 chamber chamber NN 33899 566 21 , , , 33899 566 22 not not RB 33899 566 23 air air NN 33899 566 24 - - HYPH 33899 566 25 tight tight JJ 33899 566 26 , , , 33899 566 27 but but CC 33899 566 28 partially partially RB 33899 566 29 so so RB 33899 566 30 . . . 33899 567 1 After after IN 33899 567 2 burning burn VBG 33899 567 3 a a DT 33899 567 4 few few JJ 33899 567 5 minutes minute NNS 33899 567 6 the the DT 33899 567 7 oxygen oxygen NN 33899 567 8 in in IN 33899 567 9 this this DT 33899 567 10 chamber chamber NN 33899 567 11 becomes become VBZ 33899 567 12 used use VBN 33899 567 13 up up RP 33899 567 14 and and CC 33899 567 15 its -PRON- PRP$ 33899 567 16 place place NN 33899 567 17 is be VBZ 33899 567 18 taken take VBN 33899 567 19 by by IN 33899 567 20 carbonic carbonic JJ 33899 567 21 - - HYPH 33899 567 22 acid acid NN 33899 567 23 gas gas NN 33899 567 24 and and CC 33899 567 25 other other JJ 33899 567 26 products product NNS 33899 567 27 of of IN 33899 567 28 combustion combustion NN 33899 567 29 , , , 33899 567 30 after after IN 33899 567 31 which which WDT 33899 567 32 the the DT 33899 567 33 carbons carbon NNS 33899 567 34 burn burn VBP 33899 567 35 away away RP 33899 567 36 very very RB 33899 567 37 much much RB 33899 567 38 more more RBR 33899 567 39 slowly slowly RB 33899 567 40 , , , 33899 567 41 and and CC 33899 567 42 therefore therefore RB 33899 567 43 require require VBP 33899 567 44 feeding feed VBG 33899 567 45 at at IN 33899 567 46 much much RB 33899 567 47 greater great JJR 33899 567 48 intervals interval NNS 33899 567 49 . . . 33899 568 1 This this DT 33899 568 2 lamp lamp NN 33899 568 3 again again RB 33899 568 4 is be VBZ 33899 568 5 chiefly chiefly RB 33899 568 6 made make VBN 33899 568 7 for for IN 33899 568 8 small small JJ 33899 568 9 currents current NNS 33899 568 10 not not RB 33899 568 11 exceeding exceed VBG 33899 568 12 5 5 CD 33899 568 13 ampères ampère NNS 33899 568 14 ( ( -LRB- 33899 568 15 and and CC 33899 568 16 can can MD 33899 568 17 therefore therefore RB 33899 568 18 be be VB 33899 568 19 used use VBN 33899 568 20 from from IN 33899 568 21 any any DT 33899 568 22 ordinary ordinary JJ 33899 568 23 lamp lamp NN 33899 568 24 socket socket NN 33899 568 25 ) ) -RRB- 33899 568 26 , , , 33899 568 27 and and CC 33899 568 28 for for IN 33899 568 29 a a DT 33899 568 30 moderate moderate JJ 33899 568 31 - - HYPH 33899 568 32 sized sized JJ 33899 568 33 hall hall NN 33899 568 34 is be VBZ 33899 568 35 on on IN 33899 568 36 the the DT 33899 568 37 { { -LRB- 33899 568 38 53 53 CD 33899 568 39 } } -RRB- 33899 568 40 whole whole JJ 33899 568 41 as as IN 33899 568 42 cheap cheap JJ 33899 568 43 , , , 33899 568 44 efficient efficient JJ 33899 568 45 and and CC 33899 568 46 simple simple JJ 33899 568 47 a a DT 33899 568 48 lamp lamp NN 33899 568 49 as as IN 33899 568 50 any any DT 33899 568 51 I -PRON- PRP 33899 568 52 am be VBP 33899 568 53 acquainted acquaint VBN 33899 568 54 with with IN 33899 568 55 . . . 33899 569 1 It -PRON- PRP 33899 569 2 can can MD 33899 569 3 be be VB 33899 569 4 supplied supply VBN 33899 569 5 with with IN 33899 569 6 or or CC 33899 569 7 without without IN 33899 569 8 mechanical mechanical JJ 33899 569 9 centring centre VBG 33899 569 10 movements movement NNS 33899 569 11 as as IN 33899 569 12 required require VBN 33899 569 13 , , , 33899 569 14 and and CC 33899 569 15 is be VBZ 33899 569 16 usually usually RB 33899 569 17 sent send VBN 33899 569 18 out out RP 33899 569 19 with with IN 33899 569 20 its -PRON- PRP$ 33899 569 21 own own JJ 33899 569 22 resistance resistance NN 33899 569 23 for for IN 33899 569 24 the the DT 33899 569 25 particular particular JJ 33899 569 26 current current NN 33899 569 27 on on IN 33899 569 28 which which WDT 33899 569 29 it -PRON- PRP 33899 569 30 is be VBZ 33899 569 31 to to TO 33899 569 32 be be VB 33899 569 33 used use VBN 33899 569 34 , , , 33899 569 35 so so IN 33899 569 36 that that IN 33899 569 37 it -PRON- PRP 33899 569 38 only only RB 33899 569 39 requires require VBZ 33899 569 40 connecting connect VBG 33899 569 41 up up IN 33899 569 42 to to IN 33899 569 43 the the DT 33899 569 44 nearest near JJS 33899 569 45 lamp lamp NN 33899 569 46 socket socket NN 33899 569 47 , , , 33899 569 48 and and CC 33899 569 49 is be VBZ 33899 569 50 ready ready JJ 33899 569 51 for for IN 33899 569 52 use use NN 33899 569 53 . . . 33899 570 1 [ [ -LRB- 33899 570 2 Illustration illustration NN 33899 570 3 : : : 33899 570 4 FIG FIG NNP 33899 570 5 . . . 33899 571 1 31.--'Westminster 31.--'Westminster NNP 33899 571 2 ' ' `` 33899 571 3 Arc Arc NNP 33899 571 4 Lamp Lamp NNP 33899 571 5 . . . 33899 571 6 ] ] -RRB- 33899 572 1 It -PRON- PRP 33899 572 2 is be VBZ 33899 572 3 _ _ NNP 33899 572 4 not not RB 33899 572 5 _ _ NNP 33899 572 6 sufficient sufficient JJ 33899 572 7 for for IN 33899 572 8 anything anything NN 33899 572 9 larger large JJR 33899 572 10 than than IN 33899 572 11 a a DT 33899 572 12 12-foot 12-foot CD 33899 572 13 sheet sheet NN 33899 572 14 or or CC 33899 572 15 for for IN 33899 572 16 working work VBG 33899 572 17 at at IN 33899 572 18 a a DT 33899 572 19 greater great JJR 33899 572 20 distance distance NN 33899 572 21 than than IN 33899 572 22 , , , 33899 572 23 say say UH 33899 572 24 , , , 33899 572 25 40 40 CD 33899 572 26 feet foot NNS 33899 572 27 , , , 33899 572 28 but but CC 33899 572 29 within within IN 33899 572 30 these these DT 33899 572 31 limits limit NNS 33899 572 32 the the DT 33899 572 33 lamp lamp NN 33899 572 34 , , , 33899 572 35 and and CC 33899 572 36 in in IN 33899 572 37 fact fact NN 33899 572 38 _ _ NNP 33899 572 39 any any DT 33899 572 40 _ _ NNP 33899 572 41 good good JJ 33899 572 42 5-ampère 5-ampère CD 33899 572 43 arc arc NN 33899 572 44 lamp lamp NN 33899 572 45 , , , 33899 572 46 will will MD 33899 572 47 be be VB 33899 572 48 found find VBN 33899 572 49 quite quite RB 33899 572 50 satisfactory satisfactory JJ 33899 572 51 and and CC 33899 572 52 saves save VBZ 33899 572 53 the the DT 33899 572 54 expense expense NN 33899 572 55 of of IN 33899 572 56 putting put VBG 33899 572 57 in in RP 33899 572 58 a a DT 33899 572 59 special special JJ 33899 572 60 cable cable NN 33899 572 61 . . . 33899 573 1 AUTOMATIC AUTOMATIC NNP 33899 573 2 ARC ARC NNP 33899 573 3 LAMPS.--Arc lamps.--arc NN 33899 573 4 lamps lamp NNS 33899 573 5 for for IN 33899 573 6 lantern lantern JJ 33899 573 7 work work NN 33899 573 8 in in IN 33899 573 9 which which WDT 33899 573 10 the the DT 33899 573 11 feeding feeding NN 33899 573 12 is be VBZ 33899 573 13 done do VBN 33899 573 14 automatically automatically RB 33899 573 15 are be VBP 33899 573 16 also also RB 33899 573 17 made make VBN 33899 573 18 . . . 33899 574 1 Like like IN 33899 574 2 hand hand NN 33899 574 3 - - HYPH 33899 574 4 fed fed NN 33899 574 5 lamps lamp NNS 33899 574 6 , , , 33899 574 7 they -PRON- PRP 33899 574 8 vary vary VBP 33899 574 9 in in IN 33899 574 10 exact exact JJ 33899 574 11 design design NN 33899 574 12 , , , 33899 574 13 but but CC 33899 574 14 all all DT 33899 574 15 , , , 33899 574 16 or or CC 33899 574 17 practically practically RB 33899 574 18 all all DT 33899 574 19 , , , 33899 574 20 are be VBP 33899 574 21 so so RB 33899 574 22 designed design VBN 33899 574 23 that that IN 33899 574 24 the the DT 33899 574 25 carbons carbon NNS 33899 574 26 are be VBP 33899 574 27 brought bring VBN 33899 574 28 together together RP 33899 574 29 by by IN 33899 574 30 means mean NNS 33899 574 31 of of IN 33899 574 32 springs spring NNS 33899 574 33 or or CC 33899 574 34 weights weight NNS 33899 574 35 , , , 33899 574 36 and and CC 33899 574 37 some some DT 33899 574 38 form form NN 33899 574 39 of of IN 33899 574 40 ' ' `` 33899 574 41 brake brake NN 33899 574 42 ' ' '' 33899 574 43 controlled control VBN 33899 574 44 by by IN 33899 574 45 a a DT 33899 574 46 system system NN 33899 574 47 of of IN 33899 574 48 electro electro NNP 33899 574 49 - - HYPH 33899 574 50 magnets magnet NNS 33899 574 51 checks check NNS 33899 574 52 the the DT 33899 574 53 { { -LRB- 33899 574 54 54 54 CD 33899 574 55 } } -RRB- 33899 574 56 movement movement NN 33899 574 57 . . . 33899 575 1 As as IN 33899 575 2 the the DT 33899 575 3 carbons carbon NNS 33899 575 4 burn burn VBP 33899 575 5 away away RB 33899 575 6 the the DT 33899 575 7 arc arc NN 33899 575 8 lengthens lengthen VBZ 33899 575 9 , , , 33899 575 10 the the DT 33899 575 11 current current JJ 33899 575 12 weakens weaken NNS 33899 575 13 , , , 33899 575 14 the the DT 33899 575 15 electro electro NNP 33899 575 16 - - HYPH 33899 575 17 magnets magnet NNS 33899 575 18 lose lose VBP 33899 575 19 their -PRON- PRP$ 33899 575 20 grip grip NN 33899 575 21 , , , 33899 575 22 and and CC 33899 575 23 the the DT 33899 575 24 carbons carbon NNS 33899 575 25 move move VBP 33899 575 26 together together RB 33899 575 27 until until IN 33899 575 28 the the DT 33899 575 29 increasing increase VBG 33899 575 30 current current JJ 33899 575 31 puts put NNS 33899 575 32 on on IN 33899 575 33 the the DT 33899 575 34 brake brake NN 33899 575 35 again again RB 33899 575 36 . . . 33899 576 1 Some some DT 33899 576 2 of of IN 33899 576 3 these these DT 33899 576 4 lamps lamp NNS 33899 576 5 are be VBP 33899 576 6 ' ' `` 33899 576 7 semi semi JJ 33899 576 8 - - JJ 33899 576 9 automatic automatic JJ 33899 576 10 ' ' '' 33899 576 11 only only RB 33899 576 12 , , , 33899 576 13 that that DT 33899 576 14 is be VBZ 33899 576 15 to to TO 33899 576 16 say say VB 33899 576 17 , , , 33899 576 18 the the DT 33899 576 19 arc arc NN 33899 576 20 has have VBZ 33899 576 21 to to TO 33899 576 22 be be VB 33899 576 23 struck strike VBN 33899 576 24 by by IN 33899 576 25 hand hand NN 33899 576 26 , , , 33899 576 27 while while IN 33899 576 28 others other NNS 33899 576 29 perform perform VBP 33899 576 30 this this DT 33899 576 31 operation operation NN 33899 576 32 automatically automatically RB 33899 576 33 as as RB 33899 576 34 well well RB 33899 576 35 , , , 33899 576 36 usually usually RB 33899 576 37 by by IN 33899 576 38 an an DT 33899 576 39 additional additional JJ 33899 576 40 magnet magnet NN 33899 576 41 which which WDT 33899 576 42 draws draw VBZ 33899 576 43 back back RP 33899 576 44 the the DT 33899 576 45 carbons carbon NNS 33899 576 46 by by IN 33899 576 47 the the DT 33899 576 48 correct correct JJ 33899 576 49 amount amount NN 33899 576 50 after after IN 33899 576 51 the the DT 33899 576 52 arc arc NN 33899 576 53 is be VBZ 33899 576 54 struck strike VBN 33899 576 55 . . . 33899 577 1 My -PRON- PRP$ 33899 577 2 frank frank JJ 33899 577 3 advice advice NN 33899 577 4 to to IN 33899 577 5 intending intend VBG 33899 577 6 lanternists lanternist NNS 33899 577 7 is be VBZ 33899 577 8 to to TO 33899 577 9 leave leave VB 33899 577 10 these these DT 33899 577 11 lamps lamp NNS 33899 577 12 alone alone RB 33899 577 13 . . . 33899 578 1 Some some DT 33899 578 2 of of IN 33899 578 3 them -PRON- PRP 33899 578 4 are be VBP 33899 578 5 satisfactory satisfactory JJ 33899 578 6 up up IN 33899 578 7 to to IN 33899 578 8 a a DT 33899 578 9 point point NN 33899 578 10 , , , 33899 578 11 but but CC 33899 578 12 they -PRON- PRP 33899 578 13 are be VBP 33899 578 14 all all RB 33899 578 15 apt apt JJ 33899 578 16 to to TO 33899 578 17 be be VB 33899 578 18 ' ' `` 33899 578 19 jumpy jumpy JJ 33899 578 20 , , , 33899 578 21 ' ' '' 33899 578 22 and and CC 33899 578 23 on on IN 33899 578 24 the the DT 33899 578 25 whole whole JJ 33899 578 26 the the DT 33899 578 27 hand hand NN 33899 578 28 - - HYPH 33899 578 29 fed feed VBN 33899 578 30 type type NN 33899 578 31 is be VBZ 33899 578 32 in in IN 33899 578 33 my -PRON- PRP$ 33899 578 34 opinion opinion NN 33899 578 35 to to TO 33899 578 36 be be VB 33899 578 37 preferred prefer VBN 33899 578 38 . . . 33899 579 1 ARC arc VB 33899 579 2 LAMPS lamp NNS 33899 579 3 ON on IN 33899 579 4 ALTERNATING alternating NN 33899 579 5 CURRENTS.--The currents.--the JJ 33899 579 6 alternating alternate VBG 33899 579 7 current current NN 33899 579 8 is be VBZ 33899 579 9 not not RB 33899 579 10 so so RB 33899 579 11 good good JJ 33899 579 12 as as IN 33899 579 13 the the DT 33899 579 14 continuous continuous JJ 33899 579 15 for for IN 33899 579 16 lantern lantern JJ 33899 579 17 work work NN 33899 579 18 with with IN 33899 579 19 arc arc NN 33899 579 20 lamps lamp NNS 33899 579 21 : : : 33899 579 22 the the DT 33899 579 23 light light NN 33899 579 24 per per IN 33899 579 25 ampère ampère NNP 33899 579 26 is be VBZ 33899 579 27 not not RB 33899 579 28 so so RB 33899 579 29 great great JJ 33899 579 30 , , , 33899 579 31 the the DT 33899 579 32 light light NN 33899 579 33 has have VBZ 33899 579 34 an an DT 33899 579 35 irritating irritate VBG 33899 579 36 habit habit NN 33899 579 37 of of IN 33899 579 38 travelling travel VBG 33899 579 39 round round IN 33899 579 40 the the DT 33899 579 41 carbons carbon NNS 33899 579 42 and and CC 33899 579 43 there there EX 33899 579 44 is be VBZ 33899 579 45 always always RB 33899 579 46 a a DT 33899 579 47 slight slight JJ 33899 579 48 ' ' '' 33899 579 49 hum hum NN 33899 579 50 . . . 33899 579 51 ' ' '' 33899 580 1 The the DT 33899 580 2 sum sum NN 33899 580 3 total total NN 33899 580 4 of of IN 33899 580 5 these these DT 33899 580 6 drawbacks drawback NNS 33899 580 7 is be VBZ 33899 580 8 nothing nothing NN 33899 580 9 very very RB 33899 580 10 serious serious JJ 33899 580 11 , , , 33899 580 12 provided provide VBN 33899 580 13 that that IN 33899 580 14 proper proper JJ 33899 580 15 arrangements arrangement NNS 33899 580 16 are be VBP 33899 580 17 adopted adopt VBN 33899 580 18 , , , 33899 580 19 and and CC 33899 580 20 I -PRON- PRP 33899 580 21 have have VBP 33899 580 22 frequently frequently RB 33899 580 23 manipulated manipulate VBN 33899 580 24 arc arc NN 33899 580 25 lamps lamp NNS 33899 580 26 on on IN 33899 580 27 alternating alternate VBG 33899 580 28 circuits circuit NNS 33899 580 29 with with IN 33899 580 30 such such JJ 33899 580 31 good good JJ 33899 580 32 results result NNS 33899 580 33 that that WDT 33899 580 34 professional professional JJ 33899 580 35 lecturers lecturer NNS 33899 580 36 have have VBP 33899 580 37 at at IN 33899 580 38 first first RB 33899 580 39 refused refuse VBD 33899 580 40 to to TO 33899 580 41 believe believe VB 33899 580 42 that that IN 33899 580 43 the the DT 33899 580 44 circuit circuit NN 33899 580 45 really really RB 33899 580 46 _ _ NNP 33899 580 47 was be VBD 33899 580 48 _ _ NNP 33899 580 49 alternating alternate VBG 33899 580 50 . . . 33899 581 1 As as IN 33899 581 2 it -PRON- PRP 33899 581 3 is be VBZ 33899 581 4 frequently frequently RB 33899 581 5 stated state VBN 33899 581 6 that that IN 33899 581 7 to to TO 33899 581 8 obtain obtain VB 33899 581 9 a a DT 33899 581 10 steady steady JJ 33899 581 11 light light NN 33899 581 12 with with IN 33899 581 13 an an DT 33899 581 14 alternating alternate VBG 33899 581 15 current current NN 33899 581 16 is be VBZ 33899 581 17 impossible impossible JJ 33899 581 18 , , , 33899 581 19 I -PRON- PRP 33899 581 20 can can MD 33899 581 21 understand understand VB 33899 581 22 their -PRON- PRP$ 33899 581 23 surprise surprise NN 33899 581 24 , , , 33899 581 25 and and CC 33899 581 26 I -PRON- PRP 33899 581 27 can can MD 33899 581 28 also also RB 33899 581 29 understand understand VB 33899 581 30 the the DT 33899 581 31 statement statement NN 33899 581 32 in in IN 33899 581 33 question question NN 33899 581 34 , , , 33899 581 35 as as IN 33899 581 36 the the DT 33899 581 37 problem problem NN 33899 581 38 is be VBZ 33899 581 39 usually usually RB 33899 581 40 tackled tackle VBN 33899 581 41 on on IN 33899 581 42 entirely entirely RB 33899 581 43 wrong wrong JJ 33899 581 44 lines line NNS 33899 581 45 . . . 33899 582 1 It -PRON- PRP 33899 582 2 is be VBZ 33899 582 3 almost almost RB 33899 582 4 always always RB 33899 582 5 stated state VBN 33899 582 6 that that IN 33899 582 7 arc arc NNP 33899 582 8 lamps lamp NNS 33899 582 9 for for IN 33899 582 10 alternating alternate VBG 33899 582 11 currents current NNS 33899 582 12 should should MD 33899 582 13 be be VB 33899 582 14 arranged arrange VBN 33899 582 15 with with IN 33899 582 16 the the DT 33899 582 17 carbons carbon NNS 33899 582 18 _ _ NNP 33899 582 19 vertical vertical JJ 33899 582 20 _ _ NNP 33899 582 21 , , , 33899 582 22 and and CC 33899 582 23 many many JJ 33899 582 24 makers maker NNS 33899 582 25 actually actually RB 33899 582 26 so so RB 33899 582 27 construct construct VBP 33899 582 28 their -PRON- PRP$ 33899 582 29 lamps lamp NNS 33899 582 30 as as IN 33899 582 31 to to TO 33899 582 32 allow allow VB 33899 582 33 of of IN 33899 582 34 this this DT 33899 582 35 . . . 33899 583 1 To to TO 33899 583 2 obtain obtain VB 33899 583 3 a a DT 33899 583 4 steady steady JJ 33899 583 5 light light NN 33899 583 6 under under IN 33899 583 7 these these DT 33899 583 8 conditions condition NNS 33899 583 9 _ _ NNP 33899 583 10 is be VBZ 33899 583 11 _ _ NNP 33899 583 12 impossible impossible JJ 33899 583 13 and and CC 33899 583 14 I -PRON- PRP 33899 583 15 pity pity VBP 33899 583 16 anyone anyone NN 33899 583 17 who who WP 33899 583 18 attempts attempt VBZ 33899 583 19 it -PRON- PRP 33899 583 20 ; ; : 33899 583 21 but but CC 33899 583 22 the the DT 33899 583 23 statement statement NN 33899 583 24 that that IN 33899 583 25 this this DT 33899 583 26 is be VBZ 33899 583 27 the the DT 33899 583 28 best good JJS 33899 583 29 method method NN 33899 583 30 of of IN 33899 583 31 working working NN 33899 583 32 has have VBZ 33899 583 33 been be VBN 33899 583 34 repeated repeat VBN 33899 583 35 so so RB 33899 583 36 often often RB 33899 583 37 that that IN 33899 583 38 it -PRON- PRP 33899 583 39 seems seem VBZ 33899 583 40 to to TO 33899 583 41 have have VB 33899 583 42 been be VBN 33899 583 43 taken take VBN 33899 583 44 for for IN 33899 583 45 granted grant VBN 33899 583 46 . . . 33899 584 1 The the DT 33899 584 2 best good JJS 33899 584 3 arrangement arrangement NN 33899 584 4 ( ( -LRB- 33899 584 5 in in IN 33899 584 6 my -PRON- PRP$ 33899 584 7 hands hand NNS 33899 584 8 at at IN 33899 584 9 any any DT 33899 584 10 rate rate NN 33899 584 11 ) ) -RRB- 33899 584 12 is be VBZ 33899 584 13 to to IN 33899 584 14 { { -LRB- 33899 584 15 55 55 CD 33899 584 16 } } -RRB- 33899 584 17 slant slant NN 33899 584 18 the the DT 33899 584 19 carbons carbon NNS 33899 584 20 as as IN 33899 584 21 for for IN 33899 584 22 the the DT 33899 584 23 continuous continuous JJ 33899 584 24 current current NN 33899 584 25 , , , 33899 584 26 and and CC 33899 584 27 also also RB 33899 584 28 to to TO 33899 584 29 have have VB 33899 584 30 the the DT 33899 584 31 upper upper JJ 33899 584 32 carbon carbon NN 33899 584 33 cored core VBD 33899 584 34 and and CC 33899 584 35 the the DT 33899 584 36 lower low JJR 33899 584 37 one one CD 33899 584 38 solid solid JJ 33899 584 39 , , , 33899 584 40 but but CC 33899 584 41 to to TO 33899 584 42 use use VB 33899 584 43 a a DT 33899 584 44 rather rather RB 33899 584 45 larger large JJR 33899 584 46 lower low JJR 33899 584 47 carbon carbon NN 33899 584 48 than than IN 33899 584 49 would would MD 33899 584 50 be be VB 33899 584 51 correct correct JJ 33899 584 52 if if IN 33899 584 53 the the DT 33899 584 54 main main JJ 33899 584 55 were be VBD 33899 584 56 continuous continuous JJ 33899 584 57 . . . 33899 585 1 Also also RB 33899 585 2 the the DT 33899 585 3 upper upper JJ 33899 585 4 carbon carbon NN 33899 585 5 should should MD 33899 585 6 not not RB 33899 585 7 be be VB 33899 585 8 _ _ NNP 33899 585 9 quite quite RB 33899 585 10 _ _ NNP 33899 585 11 so so RB 33899 585 12 far far RB 33899 585 13 back back RB 33899 585 14 as as IN 33899 585 15 with with IN 33899 585 16 D.C. D.C. NNP 33899 585 17 ; ; : 33899 585 18 to to TO 33899 585 19 have have VB 33899 585 20 the the DT 33899 585 21 front front JJ 33899 585 22 edges edge NNS 33899 585 23 of of IN 33899 585 24 the the DT 33899 585 25 two two CD 33899 585 26 carbons carbon NNS 33899 585 27 practically practically RB 33899 585 28 in in IN 33899 585 29 line line NN 33899 585 30 is be VBZ 33899 585 31 about about RB 33899 585 32 correct correct JJ 33899 585 33 , , , 33899 585 34 but but CC 33899 585 35 the the DT 33899 585 36 _ _ NNP 33899 585 37 exact exact JJ 33899 585 38 _ _ NNP 33899 585 39 position position NN 33899 585 40 should should MD 33899 585 41 be be VB 33899 585 42 carefully carefully RB 33899 585 43 adjusted adjust VBN 33899 585 44 to to TO 33899 585 45 obtain obtain VB 33899 585 46 the the DT 33899 585 47 steadiest steady JJS 33899 585 48 light light NN 33899 585 49 , , , 33899 585 50 and and CC 33899 585 51 it -PRON- PRP 33899 585 52 will will MD 33899 585 53 be be VB 33899 585 54 found find VBN 33899 585 55 that that IN 33899 585 56 a a DT 33899 585 57 slight slight JJ 33899 585 58 alteration alteration NN 33899 585 59 makes make VBZ 33899 585 60 a a DT 33899 585 61 considerable considerable JJ 33899 585 62 difference difference NN 33899 585 63 . . . 33899 586 1 It -PRON- PRP 33899 586 2 is be VBZ 33899 586 3 also also RB 33899 586 4 a a DT 33899 586 5 great great JJ 33899 586 6 help help NN 33899 586 7 to to TO 33899 586 8 have have VB 33899 586 9 a a DT 33899 586 10 weak weak JJ 33899 586 11 electro electro JJ 33899 586 12 - - HYPH 33899 586 13 magnet magnet NN 33899 586 14 , , , 33899 586 15 or or CC 33899 586 16 its -PRON- PRP$ 33899 586 17 equivalent equivalent NN 33899 586 18 , , , 33899 586 19 so so RB 33899 586 20 arranged arrange VBD 33899 586 21 that that IN 33899 586 22 it -PRON- PRP 33899 586 23 tends tend VBZ 33899 586 24 by by IN 33899 586 25 its -PRON- PRP$ 33899 586 26 influence influence NN 33899 586 27 to to TO 33899 586 28 keep keep VB 33899 586 29 the the DT 33899 586 30 arc arc NN 33899 586 31 to to IN 33899 586 32 the the DT 33899 586 33 front front NN 33899 586 34 . . . 33899 587 1 On on IN 33899 587 2 some some DT 33899 587 3 lamps lamp NNS 33899 587 4 this this DT 33899 587 5 is be VBZ 33899 587 6 provided provide VBN 33899 587 7 for for IN 33899 587 8 , , , 33899 587 9 as as RB 33899 587 10 even even RB 33899 587 11 with with IN 33899 587 12 a a DT 33899 587 13 continuous continuous JJ 33899 587 14 current current NN 33899 587 15 it -PRON- PRP 33899 587 16 is be VBZ 33899 587 17 quite quite RB 33899 587 18 harmless harmless JJ 33899 587 19 and and CC 33899 587 20 , , , 33899 587 21 if if IN 33899 587 22 anything anything NN 33899 587 23 , , , 33899 587 24 beneficial beneficial JJ 33899 587 25 ; ; : 33899 587 26 but but CC 33899 587 27 , , , 33899 587 28 if if IN 33899 587 29 not not RB 33899 587 30 , , , 33899 587 31 any any DT 33899 587 32 competent competent JJ 33899 587 33 mechanic mechanic NN 33899 587 34 can can MD 33899 587 35 easily easily RB 33899 587 36 fit fit VB 33899 587 37 an an DT 33899 587 38 ' ' '' 33899 587 39 Induction Induction NNP 33899 587 40 Ring Ring NNP 33899 587 41 , , , 33899 587 42 ' ' '' 33899 587 43 consisting consist VBG 33899 587 44 of of IN 33899 587 45 a a DT 33899 587 46 single single JJ 33899 587 47 turn turn NN 33899 587 48 of of IN 33899 587 49 stout stout JJ 33899 587 50 copper copper NN 33899 587 51 wire wire NN 33899 587 52 , , , 33899 587 53 which which WDT 33899 587 54 has have VBZ 33899 587 55 sufficient sufficient JJ 33899 587 56 magnetic magnetic JJ 33899 587 57 influence influence NN 33899 587 58 to to TO 33899 587 59 do do VB 33899 587 60 all all DT 33899 587 61 that that WDT 33899 587 62 is be VBZ 33899 587 63 required require VBN 33899 587 64 ( ( -LRB- 33899 587 65 Fig fig NN 33899 587 66 . . . 33899 588 1 32 32 CD 33899 588 2 ) ) -RRB- 33899 588 3 . . . 33899 589 1 This this DT 33899 589 2 ring ring NN 33899 589 3 must must MD 33899 589 4 be be VB 33899 589 5 wired wire VBN 33899 589 6 in in IN 33899 589 7 series series NN 33899 589 8 with with IN 33899 589 9 the the DT 33899 589 10 arc arc NNP 33899 589 11 itself -PRON- PRP 33899 589 12 , , , 33899 589 13 and and CC 33899 589 14 as as IN 33899 589 15 the the DT 33899 589 16 current current JJ 33899 589 17 passing pass VBG 33899 589 18 in in IN 33899 589 19 it -PRON- PRP 33899 589 20 automatically automatically RB 33899 589 21 reverses reverse VBZ 33899 589 22 in in IN 33899 589 23 synchronism synchronism NN 33899 589 24 with with IN 33899 589 25 the the DT 33899 589 26 arc arc NN 33899 589 27 , , , 33899 589 28 its -PRON- PRP$ 33899 589 29 effect effect NN 33899 589 30 is be VBZ 33899 589 31 _ _ NNP 33899 589 32 always always RB 33899 589 33 _ _ NNP 33899 589 34 to to TO 33899 589 35 deflect deflect VB 33899 589 36 the the DT 33899 589 37 arc arc NN 33899 589 38 in in IN 33899 589 39 the the DT 33899 589 40 same same JJ 33899 589 41 direction direction NN 33899 589 42 , , , 33899 589 43 and and CC 33899 589 44 care care NN 33899 589 45 must must MD 33899 589 46 of of IN 33899 589 47 course course NN 33899 589 48 be be VB 33899 589 49 taken take VBN 33899 589 50 that that IN 33899 589 51 it -PRON- PRP 33899 589 52 is be VBZ 33899 589 53 so so RB 33899 589 54 wired wire VBN 33899 589 55 that that IN 33899 589 56 the the DT 33899 589 57 deflection deflection NN 33899 589 58 is be VBZ 33899 589 59 forward forward RB 33899 589 60 and and CC 33899 589 61 not not RB 33899 589 62 backward backward JJ 33899 589 63 . . . 33899 590 1 This this DT 33899 590 2 is be VBZ 33899 590 3 the the DT 33899 590 4 exact exact JJ 33899 590 5 arrangement arrangement NN 33899 590 6 I -PRON- PRP 33899 590 7 have have VBP 33899 590 8 myself -PRON- PRP 33899 590 9 adopted adopt VBN 33899 590 10 , , , 33899 590 11 and and CC 33899 590 12 I -PRON- PRP 33899 590 13 never never RB 33899 590 14 experience experience VBP 33899 590 15 any any DT 33899 590 16 difficulty difficulty NN 33899 590 17 on on IN 33899 590 18 the the DT 33899 590 19 score score NN 33899 590 20 of of IN 33899 590 21 the the DT 33899 590 22 arc arc NN 33899 590 23 wandering wandering NN 33899 590 24 . . . 33899 591 1 Right right RB 33899 591 2 - - HYPH 33899 591 3 angled angle VBN 33899 591 4 arc arc NN 33899 591 5 lamps lamp NNS 33899 591 6 , , , 33899 591 7 as as IN 33899 591 8 described describe VBN 33899 591 9 on on IN 33899 591 10 pages page NNS 33899 591 11 52 52 CD 33899 591 12 and and CC 33899 591 13 53 53 CD 33899 591 14 , , , 33899 591 15 are be VBP 33899 591 16 also also RB 33899 591 17 very very RB 33899 591 18 efficient efficient JJ 33899 591 19 on on IN 33899 591 20 A.C. A.C. NNP 33899 591 21 mains main NNS 33899 591 22 , , , 33899 591 23 and and CC 33899 591 24 frequently frequently RB 33899 591 25 these these DT 33899 591 26 lamps lamp NNS 33899 591 27 are be VBP 33899 591 28 already already RB 33899 591 29 equipped equip VBN 33899 591 30 with with IN 33899 591 31 electro electro NNP 33899 591 32 - - HYPH 33899 591 33 magnets magnet NNS 33899 591 34 for for IN 33899 591 35 the the DT 33899 591 36 purpose purpose NN 33899 591 37 required require VBN 33899 591 38 . . . 33899 592 1 The the DT 33899 592 2 ' ' `` 33899 592 3 hum hum NN 33899 592 4 ' ' '' 33899 592 5 of of IN 33899 592 6 an an DT 33899 592 7 alternating alternate VBG 33899 592 8 current current NN 33899 592 9 can can MD 33899 592 10 not not RB 33899 592 11 be be VB 33899 592 12 altogether altogether RB 33899 592 13 eliminated eliminate VBN 33899 592 14 , , , 33899 592 15 but but CC 33899 592 16 can can MD 33899 592 17 be be VB 33899 592 18 reduced reduce VBN 33899 592 19 to to IN 33899 592 20 a a DT 33899 592 21 minimum minimum NN 33899 592 22 _ _ NNP 33899 592 23 by by IN 33899 592 24 reducing reduce VBG 33899 592 25 the the DT 33899 592 26 voltage voltage NN 33899 592 27 as as RB 33899 592 28 far far RB 33899 592 29 as as IN 33899 592 30 possible possible JJ 33899 592 31 _ _ NNP 33899 592 32 . . . 33899 593 1 As as IN 33899 593 2 has have VBZ 33899 593 3 been be VBN 33899 593 4 already already RB 33899 593 5 said say VBN 33899 593 6 , , , 33899 593 7 the the DT 33899 593 8 A.C. A.C. NNP 33899 593 9 lends lend VBZ 33899 593 10 itself -PRON- PRP 33899 593 11 readily readily RB 33899 593 12 to to IN 33899 593 13 transformation transformation NN 33899 593 14 of of IN 33899 593 15 voltage voltage NN 33899 593 16 , , , 33899 593 17 and and CC 33899 593 18 I -PRON- PRP 33899 593 19 find find VBP 33899 593 20 in in IN 33899 593 21 practice practice NN 33899 593 22 90 90 CD 33899 593 23 - - SYM 33899 593 24 100 100 CD 33899 593 25 to to IN 33899 593 26 { { -LRB- 33899 593 27 56 56 CD 33899 593 28 } } -RRB- 33899 593 29 be be VB 33899 593 30 ideal ideal JJ 33899 593 31 . . . 33899 594 1 More More JJR 33899 594 2 than than IN 33899 594 3 this this DT 33899 594 4 is be VBZ 33899 594 5 inclined inclined JJ 33899 594 6 to to TO 33899 594 7 be be VB 33899 594 8 noisy noisy JJ 33899 594 9 , , , 33899 594 10 and and CC 33899 594 11 less less JJR 33899 594 12 is be VBZ 33899 594 13 apt apt JJ 33899 594 14 to to TO 33899 594 15 result result VB 33899 594 16 in in IN 33899 594 17 an an DT 33899 594 18 unsteady unsteady JJ 33899 594 19 arc arc NN 33899 594 20 . . . 33899 595 1 The the DT 33899 595 2 arrangement arrangement NN 33899 595 3 , , , 33899 595 4 therefore therefore RB 33899 595 5 , , , 33899 595 6 which which WDT 33899 595 7 I -PRON- PRP 33899 595 8 recommend recommend VBP 33899 595 9 from from IN 33899 595 10 long long JJ 33899 595 11 experience experience NN 33899 595 12 is be VBZ 33899 595 13 to to TO 33899 595 14 employ employ VB 33899 595 15 a a DT 33899 595 16 transformer transformer NN 33899 595 17 to to TO 33899 595 18 reduce reduce VB 33899 595 19 the the DT 33899 595 20 E.M.F. E.M.F. NNP 33899 596 1 to to IN 33899 596 2 100 100 CD 33899 596 3 volts volt NNS 33899 596 4 or or CC 33899 596 5 thereabouts thereabout NNS 33899 596 6 , , , 33899 596 7 and and CC 33899 596 8 then then RB 33899 596 9 work work VB 33899 596 10 with with IN 33899 596 11 a a DT 33899 596 12 resistance resistance NN 33899 596 13 in in IN 33899 596 14 the the DT 33899 596 15 usual usual JJ 33899 596 16 way way NN 33899 596 17 ( ( -LRB- 33899 596 18 if if IN 33899 596 19 the the DT 33899 596 20 original original JJ 33899 596 21 current current NN 33899 596 22 is be VBZ 33899 596 23 100 100 CD 33899 596 24 volts volt NNS 33899 596 25 , , , 33899 596 26 of of IN 33899 596 27 course course NN 33899 596 28 _ _ NNP 33899 596 29 no no DT 33899 596 30 _ _ NNP 33899 596 31 transformer transformer NN 33899 596 32 is be VBZ 33899 596 33 required require VBN 33899 596 34 ) ) -RRB- 33899 596 35 with with IN 33899 596 36 a a DT 33899 596 37 properly properly RB 33899 596 38 constructed construct VBN 33899 596 39 arc arc NNP 33899 596 40 lamp lamp NNP 33899 596 41 fitted fit VBN 33899 596 42 with with IN 33899 596 43 an an DT 33899 596 44 induction induction NN 33899 596 45 ring ring NN 33899 596 46 or or CC 33899 596 47 electro electro NN 33899 596 48 - - HYPH 33899 596 49 magnet magnet NN 33899 596 50 . . . 33899 597 1 No no DT 33899 597 2 difficulty difficulty NN 33899 597 3 should should MD 33899 597 4 then then RB 33899 597 5 be be VB 33899 597 6 experienced experience VBN 33899 597 7 in in IN 33899 597 8 obtaining obtain VBG 33899 597 9 a a DT 33899 597 10 good good JJ 33899 597 11 , , , 33899 597 12 steady steady JJ 33899 597 13 , , , 33899 597 14 and and CC 33899 597 15 fairly fairly RB 33899 597 16 quiet quiet JJ 33899 597 17 light light NN 33899 597 18 . . . 33899 598 1 [ [ -LRB- 33899 598 2 Illustration illustration NN 33899 598 3 : : : 33899 598 4 FIG FIG NNP 33899 598 5 . . . 33899 599 1 32.--Arc 32.--arc CD 33899 599 2 Lamp Lamp NNP 33899 599 3 with with IN 33899 599 4 Induction Induction NNP 33899 599 5 Ring Ring NNP 33899 599 6 . . . 33899 599 7 ] ] -RRB- 33899 600 1 Any any DT 33899 600 2 little little JJ 33899 600 3 ' ' `` 33899 600 4 hum hum NN 33899 600 5 ' ' '' 33899 600 6 remaining remaining NN 33899 600 7 can can MD 33899 600 8 be be VB 33899 600 9 silenced silence VBN 33899 600 10 to to IN 33899 600 11 a a DT 33899 600 12 very very RB 33899 600 13 considerable considerable JJ 33899 600 14 extent extent NN 33899 600 15 by by IN 33899 600 16 placing place VBG 33899 600 17 the the DT 33899 600 18 entire entire JJ 33899 600 19 lantern lantern NN 33899 600 20 on on IN 33899 600 21 a a DT 33899 600 22 thick thick JJ 33899 600 23 block block NN 33899 600 24 of of IN 33899 600 25 saddlers saddler NNS 33899 600 26 ' ' POS 33899 600 27 felt feel VBD 33899 600 28 , , , 33899 600 29 but but CC 33899 600 30 in in IN 33899 600 31 practice practice NN 33899 600 32 I -PRON- PRP 33899 600 33 have have VBP 33899 600 34 never never RB 33899 600 35 found find VBN 33899 600 36 this this DT 33899 600 37 necessary necessary JJ 33899 600 38 with with IN 33899 600 39 ordinary ordinary JJ 33899 600 40 currents current NNS 33899 600 41 , , , 33899 600 42 though though IN 33899 600 43 a a DT 33899 600 44 few few JJ 33899 600 45 abnormal abnormal JJ 33899 600 46 circuits circuit NNS 33899 600 47 where where WRB 33899 600 48 the the DT 33899 600 49 ' ' `` 33899 600 50 periodicity periodicity NN 33899 600 51 ' ' '' 33899 600 52 is be VBZ 33899 600 53 very very RB 33899 600 54 high high JJ 33899 600 55 are be VBP 33899 600 56 noisier noisy JJR 33899 600 57 than than IN 33899 600 58 others other NNS 33899 600 59 . . . 33899 601 1 [ [ -LRB- 33899 601 2 Illustration illustration NN 33899 601 3 : : : 33899 601 4 FIG FIG NNP 33899 601 5 . . . 33899 602 1 33.--THE 33.--the CD 33899 602 2 OPTICAL optical NN 33899 602 3 SYSTEM system NN 33899 602 4 OF of IN 33899 602 5 A a DT 33899 602 6 LANTERN LANTERN NNP 33899 602 7 . . . 33899 602 8 ] ] -RRB- 33899 603 1 { { -LRB- 33899 603 2 57 57 CD 33899 603 3 } } -RRB- 33899 603 4 The the DT 33899 603 5 following follow VBG 33899 603 6 table table NN 33899 603 7 gives give VBZ 33899 603 8 the the DT 33899 603 9 sizes size NNS 33899 603 10 and and CC 33899 603 11 particulars particular NNS 33899 603 12 of of IN 33899 603 13 carbons carbon NNS 33899 603 14 for for IN 33899 603 15 various various JJ 33899 603 16 currents current NNS 33899 603 17 that that WDT 33899 603 18 I -PRON- PRP 33899 603 19 have have VBP 33899 603 20 found find VBN 33899 603 21 best well RBS 33899 603 22 in in IN 33899 603 23 actual actual JJ 33899 603 24 practice practice NN 33899 603 25 : : : 33899 603 26 CONTINUOUS CONTINUOUS NNP 33899 603 27 CURRENT CURRENT NNP 33899 603 28 Ampères ampère NNS 33899 603 29 . . . 33899 604 1 + + NFP 33899 604 2 Carbon Carbon NNP 33899 604 3 _ _ NNP 33899 604 4 Cored Cored NNP 33899 604 5 _ _ NNP 33899 604 6 . . . 33899 605 1 - - : 33899 605 2 Carbon carbon NN 33899 605 3 _ _ NNP 33899 605 4 Solid Solid NNP 33899 605 5 _ _ NNP 33899 605 6 . . . 33899 606 1 7 7 CD 33899 606 2 - - SYM 33899 606 3 10 10 CD 33899 606 4 12 12 CD 33899 606 5 mm mm CD 33899 606 6 . . . 33899 607 1 7 7 CD 33899 607 2 mm mm NNP 33899 607 3 . . . 33899 608 1 10 10 CD 33899 608 2 - - SYM 33899 608 3 15 15 CD 33899 608 4 13 13 CD 33899 608 5 , , , 33899 608 6 , , , 33899 608 7 8 8 CD 33899 608 8 , , , 33899 608 9 , , , 33899 608 10 15 15 CD 33899 608 11 - - SYM 33899 608 12 20 20 CD 33899 608 13 16 16 CD 33899 608 14 , , , 33899 608 15 , , , 33899 608 16 10 10 CD 33899 608 17 , , , 33899 608 18 , , , 33899 608 19 ALTERNATING alternating NN 33899 608 20 CURRENT CURRENT NNP 33899 608 21 Ampères ampère NNS 33899 608 22 . . . 33899 609 1 Upper Upper NNP 33899 609 2 Carbon Carbon NNP 33899 609 3 _ _ NNP 33899 609 4 Cored Cored NNP 33899 609 5 _ _ NNP 33899 609 6 . . . 33899 610 1 Lower low JJR 33899 610 2 Carbon Carbon NNP 33899 610 3 _ _ NNP 33899 610 4 Solid Solid NNP 33899 610 5 _ _ NNP 33899 610 6 . . . 33899 611 1 7 7 CD 33899 611 2 - - SYM 33899 611 3 10 10 CD 33899 611 4 12 12 CD 33899 611 5 mm mm CD 33899 611 6 . . . 33899 612 1 10 10 CD 33899 612 2 mm mm CD 33899 612 3 . . . 33899 613 1 10 10 CD 33899 613 2 - - SYM 33899 613 3 15 15 CD 33899 613 4 13 13 CD 33899 613 5 , , , 33899 613 6 , , , 33899 613 7 11 11 CD 33899 613 8 , , , 33899 613 9 , , , 33899 613 10 15 15 CD 33899 613 11 - - SYM 33899 613 12 20 20 CD 33899 613 13 16 16 CD 33899 613 14 , , , 33899 613 15 , , , 33899 613 16 13 13 CD 33899 613 17 , , , 33899 613 18 , , , 33899 613 19 * * NFP 33899 613 20 * * NFP 33899 613 21 * * NFP 33899 613 22 * * NFP 33899 613 23 * * NFP 33899 613 24 CHAPTER chapter NN 33899 613 25 VII vii NN 33899 613 26 THE the DT 33899 613 27 OPTICAL optical NN 33899 613 28 SYSTEM system RB 33899 613 29 OF of IN 33899 613 30 A a DT 33899 613 31 LANTERN lantern NN 33899 613 32 [ [ -LRB- 33899 613 33 Illustration illustration NN 33899 613 34 : : : 33899 613 35 FIG FIG NNP 33899 613 36 . . . 33899 614 1 33A.--Optical 33a.--optical CD 33899 614 2 System System NNP 33899 614 3 of of IN 33899 614 4 Lantern Lantern NNP 33899 614 5 . . . 33899 614 6 ] ] -RRB- 33899 615 1 As as IN 33899 615 2 previously previously RB 33899 615 3 noted note VBN 33899 615 4 , , , 33899 615 5 the the DT 33899 615 6 essential essential JJ 33899 615 7 parts part NNS 33899 615 8 of of IN 33899 615 9 an an DT 33899 615 10 Optical Optical NNP 33899 615 11 Lantern Lantern NNP 33899 615 12 are be VBP 33899 615 13 , , , 33899 615 14 in in IN 33899 615 15 order order NN 33899 615 16 from from IN 33899 615 17 rear rear JJ 33899 615 18 to to IN 33899 615 19 front front VB 33899 615 20 : : : 33899 615 21 ( ( -LRB- 33899 615 22 1 1 LS 33899 615 23 ) ) -RRB- 33899 615 24 The the DT 33899 615 25 illuminant illuminant NN 33899 615 26 ; ; : 33899 615 27 ( ( -LRB- 33899 615 28 2 2 LS 33899 615 29 ) ) -RRB- 33899 615 30 the the DT 33899 615 31 condenser condenser NN 33899 615 32 ; ; , 33899 615 33 ( ( -LRB- 33899 615 34 3 3 LS 33899 615 35 ) ) -RRB- 33899 615 36 the the DT 33899 615 37 slide slide NN 33899 615 38 and and CC 33899 615 39 slide slide NN 33899 615 40 stage stage NN 33899 615 41 ; ; , 33899 615 42 ( ( -LRB- 33899 615 43 4 4 LS 33899 615 44 ) ) -RRB- 33899 615 45 the the DT 33899 615 46 objective objective NN 33899 615 47 , , , 33899 615 48 to to TO 33899 615 49 which which WDT 33899 615 50 must must MD 33899 615 51 be be VB 33899 615 52 added add VBN 33899 615 53 , , , 33899 615 54 ( ( -LRB- 33899 615 55 5 5 LS 33899 615 56 ) ) -RRB- 33899 615 57 the the DT 33899 615 58 body body NN 33899 615 59 or or CC 33899 615 60 framework framework NN 33899 615 61 which which WDT 33899 615 62 holds hold VBZ 33899 615 63 the the DT 33899 615 64 whole whole NN 33899 615 65 together together RB 33899 615 66 . . . 33899 616 1 Fig fig NN 33899 616 2 . . . 33899 617 1 33 33 CD 33899 617 2 is be VBZ 33899 617 3 a a DT 33899 617 4 diagrammatic diagrammatic JJ 33899 617 5 representation representation NN 33899 617 6 of of IN 33899 617 7 the the DT 33899 617 8 entire entire JJ 33899 617 9 optical optical JJ 33899 617 10 system system NN 33899 617 11 and and CC 33899 617 12 Fig Fig NNP 33899 617 13 . . . 33899 618 1 33A 33a NN 33899 618 2 shows show VBZ 33899 618 3 all all PDT 33899 618 4 the the DT 33899 618 5 various various JJ 33899 618 6 parts part NNS 33899 618 7 _ _ XX 33899 618 8 in in IN 33899 618 9 situ situ VBN 33899 618 10 _ _ NNP 33899 618 11 : : : 33899 618 12 A a DT 33899 618 13 being be VBG 33899 618 14 the the DT 33899 618 15 illuminant illuminant NN 33899 618 16 , , , 33899 618 17 shown show VBN 33899 618 18 in in IN 33899 618 19 Fig Fig NNP 33899 618 20 . . . 33899 619 1 33 33 CD 33899 619 2 { { -LRB- 33899 619 3 58 58 CD 33899 619 4 } } -RRB- 33899 619 5 as as IN 33899 619 6 an an DT 33899 619 7 arc arc NN 33899 619 8 lamp lamp NN 33899 619 9 , , , 33899 619 10 B b VB 33899 619 11 the the DT 33899 619 12 condenser condenser NN 33899 619 13 , , , 33899 619 14 C c NN 33899 619 15 the the DT 33899 619 16 slide slide NN 33899 619 17 stage stage NN 33899 619 18 , , , 33899 619 19 and and CC 33899 619 20 D d NN 33899 619 21 the the DT 33899 619 22 objective objective NN 33899 619 23 . . . 33899 620 1 The the DT 33899 620 2 foundation foundation NN 33899 620 3 , , , 33899 620 4 so so RB 33899 620 5 to to TO 33899 620 6 speak speak VB 33899 620 7 , , , 33899 620 8 of of IN 33899 620 9 the the DT 33899 620 10 whole whole JJ 33899 620 11 instrument instrument NN 33899 620 12 is be VBZ 33899 620 13 of of IN 33899 620 14 course course NN 33899 620 15 the the DT 33899 620 16 slide slide NN 33899 620 17 , , , 33899 620 18 which which WDT 33899 620 19 , , , 33899 620 20 as as IN 33899 620 21 made make VBN 33899 620 22 in in IN 33899 620 23 this this DT 33899 620 24 country country NN 33899 620 25 , , , 33899 620 26 consists consist VBZ 33899 620 27 of of IN 33899 620 28 a a DT 33899 620 29 square square NN 33899 620 30 of of IN 33899 620 31 glass glass NN 33899 620 32 3¼ 3¼ CD 33899 620 33 inches inch NNS 33899 620 34 diameter diameter NNP 33899 620 35 , , , 33899 620 36 the the DT 33899 620 37 slide slide NN 33899 620 38 itself -PRON- PRP 33899 620 39 being be VBG 33899 620 40 somewhat somewhat RB 33899 620 41 less less JJR 33899 620 42 than than IN 33899 620 43 this this DT 33899 620 44 on on IN 33899 620 45 account account NN 33899 620 46 of of IN 33899 620 47 the the DT 33899 620 48 binding binding NN 33899 620 49 , , , 33899 620 50 & & CC 33899 620 51 c. c. NNP 33899 620 52 ; ; : 33899 620 53 in in IN 33899 620 54 making make VBG 33899 620 55 calculations calculation NNS 33899 620 56 it -PRON- PRP 33899 620 57 is be VBZ 33899 620 58 usually usually RB 33899 620 59 taken take VBN 33899 620 60 as as IN 33899 620 61 a a DT 33899 620 62 3-inch 3-inch CD 33899 620 63 circle circle NN 33899 620 64 . . . 33899 621 1 Slides slide NNS 33899 621 2 are be VBP 33899 621 3 usually usually RB 33899 621 4 made make VBN 33899 621 5 by by IN 33899 621 6 binding bind VBG 33899 621 7 together together RB 33899 621 8 with with IN 33899 621 9 strips strip NNS 33899 621 10 of of IN 33899 621 11 paper paper NN 33899 621 12 or or CC 33899 621 13 cloth cloth NN 33899 621 14 two two CD 33899 621 15 such such JJ 33899 621 16 squares square NNS 33899 621 17 , , , 33899 621 18 on on IN 33899 621 19 one one CD 33899 621 20 of of IN 33899 621 21 which which WDT 33899 621 22 is be VBZ 33899 621 23 the the DT 33899 621 24 photographic photographic JJ 33899 621 25 film film NN 33899 621 26 or or CC 33899 621 27 painting painting NN 33899 621 28 forming form VBG 33899 621 29 the the DT 33899 621 30 picture picture NN 33899 621 31 , , , 33899 621 32 the the DT 33899 621 33 other other JJ 33899 621 34 being be VBG 33899 621 35 simply simply RB 33899 621 36 a a DT 33899 621 37 plain plain JJ 33899 621 38 cover cover NN 33899 621 39 glass glass NN 33899 621 40 placed place VBN 33899 621 41 over over IN 33899 621 42 the the DT 33899 621 43 slide slide NN 33899 621 44 surface surface NN 33899 621 45 to to TO 33899 621 46 protect protect VB 33899 621 47 it -PRON- PRP 33899 621 48 , , , 33899 621 49 and and CC 33899 621 50 between between IN 33899 621 51 the the DT 33899 621 52 two two CD 33899 621 53 being be VBG 33899 621 54 placed place VBN 33899 621 55 a a DT 33899 621 56 paper paper NN 33899 621 57 mask mask NN 33899 621 58 with with IN 33899 621 59 an an DT 33899 621 60 aperture aperture NN 33899 621 61 of of IN 33899 621 62 whatever whatever WDT 33899 621 63 size size NN 33899 621 64 or or CC 33899 621 65 shape shape NN 33899 621 66 is be VBZ 33899 621 67 required require VBN 33899 621 68 , , , 33899 621 69 that that DT 33899 621 70 of of IN 33899 621 71 the the DT 33899 621 72 aforesaid aforesaid JJ 33899 621 73 3-inch 3-inch CD 33899 621 74 circle circle NN 33899 621 75 being be VBG 33899 621 76 usually usually RB 33899 621 77 taken take VBN 33899 621 78 as as IN 33899 621 79 the the DT 33899 621 80 standard standard JJ 33899 621 81 or or CC 33899 621 82 normal normal JJ 33899 621 83 dimension dimension NN 33899 621 84 for for IN 33899 621 85 this this DT 33899 621 86 aperture aperture NN 33899 621 87 . . . 33899 622 1 The the DT 33899 622 2 slide slide NN 33899 622 3 being be VBG 33899 622 4 illuminated illuminate VBN 33899 622 5 by by IN 33899 622 6 one one CD 33899 622 7 of of IN 33899 622 8 the the DT 33899 622 9 various various JJ 33899 622 10 methods method NNS 33899 622 11 discussed discuss VBN 33899 622 12 in in IN 33899 622 13 the the DT 33899 622 14 previous previous JJ 33899 622 15 chapters chapter NNS 33899 622 16 , , , 33899 622 17 is be VBZ 33899 622 18 focussed focusse VBN 33899 622 19 on on IN 33899 622 20 the the DT 33899 622 21 screen screen NN 33899 622 22 by by IN 33899 622 23 the the DT 33899 622 24 objective objective NN 33899 622 25 , , , 33899 622 26 which which WDT 33899 622 27 must must MD 33899 622 28 be be VB 33899 622 29 selected select VBN 33899 622 30 according accord VBG 33899 622 31 to to IN 33899 622 32 the the DT 33899 622 33 size size NN 33899 622 34 of of IN 33899 622 35 picture picture NN 33899 622 36 required require VBN 33899 622 37 and and CC 33899 622 38 the the DT 33899 622 39 distance distance NN 33899 622 40 between between IN 33899 622 41 lantern lantern NNP 33899 622 42 and and CC 33899 622 43 screen screen NN 33899 622 44 . . . 33899 623 1 These these DT 33899 623 2 points point NNS 33899 623 3 will will MD 33899 623 4 be be VB 33899 623 5 gone go VBN 33899 623 6 into into IN 33899 623 7 later later RB 33899 623 8 , , , 33899 623 9 and and CC 33899 623 10 also also RB 33899 623 11 details detail NNS 33899 623 12 as as IN 33899 623 13 to to IN 33899 623 14 various various JJ 33899 623 15 types type NNS 33899 623 16 of of IN 33899 623 17 objectives objective NNS 33899 623 18 and and CC 33899 623 19 their -PRON- PRP$ 33899 623 20 respective respective JJ 33899 623 21 advantages advantage NNS 33899 623 22 ; ; : 33899 623 23 but but CC 33899 623 24 it -PRON- PRP 33899 623 25 may may MD 33899 623 26 be be VB 33899 623 27 said say VBN 33899 623 28 here here RB 33899 623 29 that that IN 33899 623 30 a a DT 33899 623 31 lantern lantern JJ 33899 623 32 objective objective NN 33899 623 33 consists consist VBZ 33899 623 34 usually usually RB 33899 623 35 of of IN 33899 623 36 a a DT 33899 623 37 combination combination NN 33899 623 38 of of IN 33899 623 39 lenses lense NNS 33899 623 40 of of IN 33899 623 41 2 2 CD 33899 623 42 inches inch NNS 33899 623 43 or or CC 33899 623 44 2½ 2½ CD 33899 623 45 inches inch NNS 33899 623 46 diameter diameter NN 33899 623 47 mounted mount VBN 33899 623 48 in in IN 33899 623 49 a a DT 33899 623 50 rackwork rackwork NN 33899 623 51 focussing focussing NN 33899 623 52 system system NN 33899 623 53 at at IN 33899 623 54 a a DT 33899 623 55 distance distance NN 33899 623 56 from from IN 33899 623 57 the the DT 33899 623 58 slide slide NN 33899 623 59 of of IN 33899 623 60 6 6 CD 33899 623 61 inches inch NNS 33899 623 62 to to IN 33899 623 63 18 18 CD 33899 623 64 inches inch NNS 33899 623 65 , , , 33899 623 66 according accord VBG 33899 623 67 to to IN 33899 623 68 the the DT 33899 623 69 length length NN 33899 623 70 of of IN 33899 623 71 its -PRON- PRP$ 33899 623 72 ' ' '' 33899 623 73 focus focus NN 33899 623 74 . . . 33899 623 75 ' ' '' 33899 624 1 As as IN 33899 624 2 our -PRON- PRP$ 33899 624 3 slide slide NN 33899 624 4 is be VBZ 33899 624 5 from from IN 33899 624 6 3 3 CD 33899 624 7 to to IN 33899 624 8 3¼ 3¼ CD 33899 624 9 inches inch NNS 33899 624 10 diameter diameter NN 33899 624 11 , , , 33899 624 12 it -PRON- PRP 33899 624 13 is be VBZ 33899 624 14 evident evident JJ 33899 624 15 that that IN 33899 624 16 all all PDT 33899 624 17 the the DT 33899 624 18 light light JJ 33899 624 19 radiating radiate VBG 33899 624 20 from from IN 33899 624 21 this this DT 33899 624 22 can can MD 33899 624 23 not not RB 33899 624 24 possibly possibly RB 33899 624 25 get get VB 33899 624 26 through through IN 33899 624 27 the the DT 33899 624 28 objective objective NN 33899 624 29 unless unless IN 33899 624 30 it -PRON- PRP 33899 624 31 is be VBZ 33899 624 32 _ _ NNP 33899 624 33 converged converge VBN 33899 624 34 _ _ NNP 33899 624 35 upon upon IN 33899 624 36 it -PRON- PRP 33899 624 37 , , , 33899 624 38 and and CC 33899 624 39 to to TO 33899 624 40 do do VB 33899 624 41 this this DT 33899 624 42 is be VBZ 33899 624 43 the the DT 33899 624 44 function function NN 33899 624 45 of of IN 33899 624 46 the the DT 33899 624 47 condenser condenser NN 33899 624 48 . . . 33899 625 1 The the DT 33899 625 2 following follow VBG 33899 625 3 two two CD 33899 625 4 diagrams diagram NNS 33899 625 5 , , , 33899 625 6 Figs fig NNS 33899 625 7 . . . 33899 626 1 34 34 CD 33899 626 2 and and CC 33899 626 3 35 35 CD 33899 626 4 , , , 33899 626 5 will will MD 33899 626 6 make make VB 33899 626 7 the the DT 33899 626 8 matter matter NN 33899 626 9 clear clear JJ 33899 626 10 . . . 33899 627 1 S S NNP 33899 627 2 represents represent VBZ 33899 627 3 our -PRON- PRP$ 33899 627 4 glass glass NN 33899 627 5 slide slide NN 33899 627 6 of of IN 33899 627 7 3 3 CD 33899 627 8 inches inch NNS 33899 627 9 clear clear JJ 33899 627 10 diameter diameter NN 33899 627 11 , , , 33899 627 12 R r NN 33899 627 13 the the DT 33899 627 14 radiant radiant NN 33899 627 15 or or CC 33899 627 16 illuminant illuminant JJ 33899 627 17 , , , 33899 627 18 and and CC 33899 627 19 L l NN 33899 627 20 our -PRON- PRP$ 33899 627 21 objective objective NN 33899 627 22 , , , 33899 627 23 shown show VBN 33899 627 24 here here RB 33899 627 25 for for IN 33899 627 26 the the DT 33899 627 27 sake sake NN 33899 627 28 of of IN 33899 627 29 simplicity simplicity NN 33899 627 30 as as IN 33899 627 31 a a DT 33899 627 32 single single JJ 33899 627 33 lens lens NN 33899 627 34 . . . 33899 628 1 The the DT 33899 628 2 slide slide NN 33899 628 3 is be VBZ 33899 628 4 well well RB 33899 628 5 illuminated illuminate VBN 33899 628 6 by by IN 33899 628 7 the the DT 33899 628 8 light light NN 33899 628 9 emanating emanate VBG 33899 628 10 from from IN 33899 628 11 { { -LRB- 33899 628 12 59 59 CD 33899 628 13 } } -RRB- 33899 628 14 R r NN 33899 628 15 , , , 33899 628 16 but but CC 33899 628 17 it -PRON- PRP 33899 628 18 is be VBZ 33899 628 19 obvious obvious JJ 33899 628 20 that that IN 33899 628 21 the the DT 33899 628 22 bulk bulk NN 33899 628 23 of of IN 33899 628 24 this this DT 33899 628 25 light light NN 33899 628 26 will will MD 33899 628 27 never never RB 33899 628 28 pass pass VB 33899 628 29 through through IN 33899 628 30 the the DT 33899 628 31 lens lens NN 33899 628 32 , , , 33899 628 33 and and CC 33899 628 34 , , , 33899 628 35 in in IN 33899 628 36 fact fact NN 33899 628 37 , , , 33899 628 38 only only RB 33899 628 39 the the DT 33899 628 40 very very RB 33899 628 41 centre centre NN 33899 628 42 of of IN 33899 628 43 the the DT 33899 628 44 slide slide NN 33899 628 45 will will MD 33899 628 46 under under IN 33899 628 47 these these DT 33899 628 48 circumstances circumstance NNS 33899 628 49 appear appear VBP 33899 628 50 upon upon IN 33899 628 51 the the DT 33899 628 52 screen screen NN 33899 628 53 at at RB 33899 628 54 all all RB 33899 628 55 . . . 33899 629 1 [ [ -LRB- 33899 629 2 Illustration illustration NN 33899 629 3 : : : 33899 629 4 FIG FIG NNP 33899 629 5 . . . 33899 630 1 34.--Optical 34.--optical JJ 33899 630 2 System System NNP 33899 630 3 without without IN 33899 630 4 Condenser Condenser NNP 33899 630 5 . . . 33899 630 6 ] ] -RRB- 33899 631 1 [ [ -LRB- 33899 631 2 Illustration illustration NN 33899 631 3 : : : 33899 631 4 FIG FIG NNP 33899 631 5 . . . 33899 632 1 35.--Action 35.--action CD 33899 632 2 of of IN 33899 632 3 Condenser Condenser NNP 33899 632 4 . . . 33899 632 5 ] ] -RRB- 33899 633 1 What what WP 33899 633 2 is be VBZ 33899 633 3 evidently evidently RB 33899 633 4 wanted want VBN 33899 633 5 is be VBZ 33899 633 6 to to TO 33899 633 7 _ _ NNP 33899 633 8 converge converge VB 33899 633 9 _ _ NNP 33899 633 10 these these DT 33899 633 11 outer outer JJ 33899 633 12 rays ray NNS 33899 633 13 , , , 33899 633 14 or or CC 33899 633 15 in in IN 33899 633 16 other other JJ 33899 633 17 words word NNS 33899 633 18 to to TO 33899 633 19 bend bend VB 33899 633 20 them -PRON- PRP 33899 633 21 in in RP 33899 633 22 so so IN 33899 633 23 that that IN 33899 633 24 they -PRON- PRP 33899 633 25 also also RB 33899 633 26 pass pass VBP 33899 633 27 through through RP 33899 633 28 the the DT 33899 633 29 objective objective NN 33899 633 30 , , , 33899 633 31 and and CC 33899 633 32 this this DT 33899 633 33 is be VBZ 33899 633 34 the the DT 33899 633 35 function function NN 33899 633 36 of of IN 33899 633 37 the the DT 33899 633 38 condenser condenser NN 33899 633 39 as as IN 33899 633 40 illustrated illustrate VBN 33899 633 41 in in IN 33899 633 42 Fig Fig NNP 33899 633 43 . . . 33899 634 1 35 35 CD 33899 634 2 . . . 33899 635 1 The the DT 33899 635 2 condenser condenser NN 33899 635 3 is be VBZ 33899 635 4 here here RB 33899 635 5 represented represent VBN 33899 635 6 also also RB 33899 635 7 by by IN 33899 635 8 a a DT 33899 635 9 single single JJ 33899 635 10 lens lens NN 33899 635 11 , , , 33899 635 12 but but CC 33899 635 13 in in IN 33899 635 14 practice practice NN 33899 635 15 it -PRON- PRP 33899 635 16 also also RB 33899 635 17 is be VBZ 33899 635 18 invariably invariably RB 33899 635 19 constructed construct VBN 33899 635 20 of of IN 33899 635 21 two two CD 33899 635 22 or or CC 33899 635 23 even even RB 33899 635 24 three three CD 33899 635 25 lenses lense NNS 33899 635 26 , , , 33899 635 27 for for IN 33899 635 28 both both DT 33899 635 29 optical optical JJ 33899 635 30 and and CC 33899 635 31 mechanical mechanical JJ 33899 635 32 reasons reason NNS 33899 635 33 . . . 33899 636 1 It -PRON- PRP 33899 636 2 is be VBZ 33899 636 3 evident evident JJ 33899 636 4 from from IN 33899 636 5 the the DT 33899 636 6 above above JJ 33899 636 7 diagrams diagram NNS 33899 636 8 that that IN 33899 636 9 the the DT 33899 636 10 condenser condenser NN 33899 636 11 must must MD 33899 636 12 be be VB 33899 636 13 somewhat somewhat RB 33899 636 14 larger large JJR 33899 636 15 in in IN 33899 636 16 diameter diameter NN 33899 636 17 than than IN 33899 636 18 the the DT 33899 636 19 slide slide NN 33899 636 20 itself -PRON- PRP 33899 636 21 , , , 33899 636 22 and and CC 33899 636 23 condensers condenser NNS 33899 636 24 for for IN 33899 636 25 ordinary ordinary JJ 33899 636 26 lantern lantern JJ 33899 636 27 work work NN 33899 636 28 are be VBP 33899 636 29 usually usually RB 33899 636 30 4 4 CD 33899 636 31 inches inch NNS 33899 636 32 to to IN 33899 636 33 4½ 4½ NN 33899 636 34 inches inch NNS 33899 636 35 diameter diameter NN 33899 636 36 . . . 33899 637 1 The the DT 33899 637 2 former former JJ 33899 637 3 size size NN 33899 637 4 { { -LRB- 33899 637 5 60 60 CD 33899 637 6 } } -RRB- 33899 637 7 will will MD 33899 637 8 suffice suffice VB 33899 637 9 if if IN 33899 637 10 the the DT 33899 637 11 condenser condenser NN 33899 637 12 is be VBZ 33899 637 13 placed place VBN 33899 637 14 very very RB 33899 637 15 close close RB 33899 637 16 to to IN 33899 637 17 the the DT 33899 637 18 slide slide NN 33899 637 19 , , , 33899 637 20 but but CC 33899 637 21 it -PRON- PRP 33899 637 22 is be VBZ 33899 637 23 often often RB 33899 637 24 advisable advisable JJ 33899 637 25 to to TO 33899 637 26 leave leave VB 33899 637 27 a a DT 33899 637 28 little little JJ 33899 637 29 intervening intervening NN 33899 637 30 space space NN 33899 637 31 , , , 33899 637 32 especially especially RB 33899 637 33 if if IN 33899 637 34 the the DT 33899 637 35 illuminant illuminant NN 33899 637 36 is be VBZ 33899 637 37 a a DT 33899 637 38 powerful powerful JJ 33899 637 39 one one NN 33899 637 40 , , , 33899 637 41 in in IN 33899 637 42 order order NN 33899 637 43 to to TO 33899 637 44 allow allow VB 33899 637 45 any any DT 33899 637 46 condensation condensation NN 33899 637 47 of of IN 33899 637 48 moisture moisture NN 33899 637 49 readily readily RB 33899 637 50 to to TO 33899 637 51 evaporate evaporate VB 33899 637 52 and and CC 33899 637 53 escape escape VB 33899 637 54 . . . 33899 638 1 Hence hence RB 33899 638 2 lanterns lantern NNS 33899 638 3 for for IN 33899 638 4 long long JJ 33899 638 5 range range NN 33899 638 6 work work NN 33899 638 7 ( ( -LRB- 33899 638 8 which which WDT 33899 638 9 involve involve VBP 33899 638 10 , , , 33899 638 11 of of IN 33899 638 12 course course NN 33899 638 13 , , , 33899 638 14 good good JJ 33899 638 15 illumination illumination NN 33899 638 16 ) ) -RRB- 33899 638 17 are be VBP 33899 638 18 usually usually RB 33899 638 19 made make VBN 33899 638 20 with with IN 33899 638 21 condensers condenser NNS 33899 638 22 of of IN 33899 638 23 4½ 4½ NNP 33899 638 24 inches inch NNS 33899 638 25 diameter diameter NN 33899 638 26 . . . 33899 639 1 Lantern lantern JJ 33899 639 2 condensers condenser NNS 33899 639 3 of of IN 33899 639 4 to to IN 33899 639 5 - - HYPH 33899 639 6 day day NN 33899 639 7 usually usually RB 33899 639 8 take take VB 33899 639 9 one one CD 33899 639 10 of of IN 33899 639 11 the the DT 33899 639 12 two two CD 33899 639 13 forms form NNS 33899 639 14 shown show VBN 33899 639 15 in in IN 33899 639 16 Fig Fig NNP 33899 639 17 . . . 33899 640 1 36 36 CD 33899 640 2 , , , 33899 640 3 but but CC 33899 640 4 the the DT 33899 640 5 exact exact JJ 33899 640 6 curve curve NN 33899 640 7 must must MD 33899 640 8 be be VB 33899 640 9 left leave VBN 33899 640 10 to to IN 33899 640 11 the the DT 33899 640 12 manufacturer manufacturer NN 33899 640 13 , , , 33899 640 14 as as IN 33899 640 15 the the DT 33899 640 16 focus focus NN 33899 640 17 of of IN 33899 640 18 the the DT 33899 640 19 condenser condenser NN 33899 640 20 must must MD 33899 640 21 have have VB 33899 640 22 a a DT 33899 640 23 definite definite JJ 33899 640 24 relation relation NN 33899 640 25 to to IN 33899 640 26 that that DT 33899 640 27 of of IN 33899 640 28 the the DT 33899 640 29 objective objective NN 33899 640 30 . . . 33899 641 1 Taking take VBG 33899 641 2 , , , 33899 641 3 however however RB 33899 641 4 , , , 33899 641 5 the the DT 33899 641 6 design design NN 33899 641 7 of of IN 33899 641 8 E e NN 33899 641 9 , , , 33899 641 10 the the DT 33899 641 11 most most RBS 33899 641 12 common common JJ 33899 641 13 of of IN 33899 641 14 all all DT 33899 641 15 , , , 33899 641 16 the the DT 33899 641 17 two two CD 33899 641 18 lenses lense NNS 33899 641 19 should should MD 33899 641 20 not not RB 33899 641 21 be be VB 33899 641 22 exactly exactly RB 33899 641 23 similar similar JJ 33899 641 24 unless unless IN 33899 641 25 the the DT 33899 641 26 objective objective NN 33899 641 27 is be VBZ 33899 641 28 pretty pretty RB 33899 641 29 short short JJ 33899 641 30 in in IN 33899 641 31 focus focus NN 33899 641 32 , , , 33899 641 33 or or CC 33899 641 34 , , , 33899 641 35 in in IN 33899 641 36 other other JJ 33899 641 37 words word NNS 33899 641 38 , , , 33899 641 39 unless unless IN 33899 641 40 the the DT 33899 641 41 distance distance NN 33899 641 42 of of IN 33899 641 43 the the DT 33899 641 44 illuminant illuminant NN 33899 641 45 on on IN 33899 641 46 the the DT 33899 641 47 one one CD 33899 641 48 hand hand NN 33899 641 49 and and CC 33899 641 50 that that DT 33899 641 51 of of IN 33899 641 52 the the DT 33899 641 53 objective objective NN 33899 641 54 on on IN 33899 641 55 the the DT 33899 641 56 other other JJ 33899 641 57 are be VBP 33899 641 58 approximately approximately RB 33899 641 59 equal equal JJ 33899 641 60 . . . 33899 642 1 If if IN 33899 642 2 the the DT 33899 642 3 lantern lantern NN 33899 642 4 is be VBZ 33899 642 5 intended intend VBN 33899 642 6 for for IN 33899 642 7 long long JJ 33899 642 8 range range NN 33899 642 9 work work NN 33899 642 10 , , , 33899 642 11 that that WDT 33899 642 12 is be VBZ 33899 642 13 equipped equip VBN 33899 642 14 with with IN 33899 642 15 a a DT 33899 642 16 long long JJ 33899 642 17 focus focus NN 33899 642 18 objective objective NN 33899 642 19 , , , 33899 642 20 the the DT 33899 642 21 front front JJ 33899 642 22 component component NN 33899 642 23 of of IN 33899 642 24 the the DT 33899 642 25 condenser condenser NN 33899 642 26 should should MD 33899 642 27 also also RB 33899 642 28 be be VB 33899 642 29 constructed construct VBN 33899 642 30 longer long RBR 33899 642 31 in in IN 33899 642 32 focus focus NN 33899 642 33 ( ( -LRB- 33899 642 34 that that DT 33899 642 35 is be VBZ 33899 642 36 to to TO 33899 642 37 say say VB 33899 642 38 , , , 33899 642 39 with with IN 33899 642 40 a a DT 33899 642 41 shallower shallow JJR 33899 642 42 curve curve NN 33899 642 43 ) ) -RRB- 33899 642 44 than than IN 33899 642 45 the the DT 33899 642 46 rear rear JJ 33899 642 47 one one NN 33899 642 48 , , , 33899 642 49 and and CC 33899 642 50 it -PRON- PRP 33899 642 51 is be VBZ 33899 642 52 amazing amazing JJ 33899 642 53 how how WRB 33899 642 54 careless careless JJ 33899 642 55 manufacturers manufacturer NNS 33899 642 56 are be VBP 33899 642 57 in in IN 33899 642 58 this this DT 33899 642 59 respect respect NN 33899 642 60 . . . 33899 643 1 If if IN 33899 643 2 , , , 33899 643 3 as as IN 33899 643 4 is be VBZ 33899 643 5 often often RB 33899 643 6 the the DT 33899 643 7 case case NN 33899 643 8 , , , 33899 643 9 the the DT 33899 643 10 lantern lantern NN 33899 643 11 is be VBZ 33899 643 12 fitted fit VBN 33899 643 13 with with IN 33899 643 14 several several JJ 33899 643 15 objectives objective NNS 33899 643 16 of of IN 33899 643 17 different different JJ 33899 643 18 foci foci NN 33899 643 19 , , , 33899 643 20 it -PRON- PRP 33899 643 21 is be VBZ 33899 643 22 usually usually RB 33899 643 23 necessary necessary JJ 33899 643 24 to to TO 33899 643 25 supply supply VB 33899 643 26 alternative alternative JJ 33899 643 27 condensers condenser NNS 33899 643 28 also also RB 33899 643 29 , , , 33899 643 30 or or CC 33899 643 31 at at IN 33899 643 32 least least JJS 33899 643 33 to to TO 33899 643 34 supply supply VB 33899 643 35 an an DT 33899 643 36 interchangeable interchangeable JJ 33899 643 37 front front JJ 33899 643 38 component component NN 33899 643 39 . . . 33899 644 1 [ [ -LRB- 33899 644 2 Illustration illustration NN 33899 644 3 : : : 33899 644 4 FIG FIG NNP 33899 644 5 . . . 33899 645 1 36.--Forms 36.--forms CD 33899 645 2 of of IN 33899 645 3 Condensers Condensers NNPS 33899 645 4 . . . 33899 645 5 ] ] -RRB- 33899 646 1 If if IN 33899 646 2 the the DT 33899 646 3 entire entire JJ 33899 646 4 condenser condenser NN 33899 646 5 is be VBZ 33899 646 6 too too RB 33899 646 7 long long RB 33899 646 8 in in IN 33899 646 9 focus focus NN 33899 646 10 , , , 33899 646 11 light light NN 33899 646 12 is be VBZ 33899 646 13 lost lose VBN 33899 646 14 ; ; : 33899 646 15 if if IN 33899 646 16 too too RB 33899 646 17 short short JJ 33899 646 18 , , , 33899 646 19 it -PRON- PRP 33899 646 20 is be VBZ 33899 646 21 impossible impossible JJ 33899 646 22 to to TO 33899 646 23 obtain obtain VB 33899 646 24 an an DT 33899 646 25 even even JJ 33899 646 26 disc disc NN 33899 646 27 , , , 33899 646 28 as as IN 33899 646 29 there there EX 33899 646 30 is be VBZ 33899 646 31 invariably invariably RB 33899 646 32 a a DT 33899 646 33 dark dark JJ 33899 646 34 patch patch NN 33899 646 35 either either CC 33899 646 36 in in IN 33899 646 37 the the DT 33899 646 38 centre centre NN 33899 646 39 or or CC 33899 646 40 round round VB 33899 646 41 the the DT 33899 646 42 edges edge NNS 33899 646 43 . . . 33899 647 1 The the DT 33899 647 2 mounting mounting NN 33899 647 3 of of IN 33899 647 4 the the DT 33899 647 5 condenser condenser NN 33899 647 6 also also RB 33899 647 7 varies vary VBZ 33899 647 8 with with IN 33899 647 9 different different JJ 33899 647 10 makers maker NNS 33899 647 11 ; ; : 33899 647 12 but but CC 33899 647 13 it -PRON- PRP 33899 647 14 must must MD 33899 647 15 be be VB 33899 647 16 remembered remember VBN 33899 647 17 in in IN 33899 647 18 any any DT 33899 647 19 case case NN 33899 647 20 that that IN 33899 647 21 it -PRON- PRP 33899 647 22 gets get VBZ 33899 647 23 { { -LRB- 33899 647 24 61 61 CD 33899 647 25 } } -RRB- 33899 647 26 extremely extremely RB 33899 647 27 hot hot JJ 33899 647 28 , , , 33899 647 29 especially especially RB 33899 647 30 the the DT 33899 647 31 back back JJ 33899 647 32 component component NN 33899 647 33 , , , 33899 647 34 and and CC 33899 647 35 hence hence RB 33899 647 36 the the DT 33899 647 37 glass glass NN 33899 647 38 must must MD 33899 647 39 be be VB 33899 647 40 mounted mount VBN 33899 647 41 _ _ NNP 33899 647 42 loose loose JJ 33899 647 43 _ _ NNP 33899 647 44 in in IN 33899 647 45 its -PRON- PRP$ 33899 647 46 cell cell NN 33899 647 47 , , , 33899 647 48 otherwise otherwise RB 33899 647 49 there there EX 33899 647 50 is be VBZ 33899 647 51 great great JJ 33899 647 52 danger danger NN 33899 647 53 of of IN 33899 647 54 it -PRON- PRP 33899 647 55 cracking crack VBG 33899 647 56 . . . 33899 648 1 Also also RB 33899 648 2 the the DT 33899 648 3 space space NN 33899 648 4 between between IN 33899 648 5 the the DT 33899 648 6 components component NNS 33899 648 7 should should MD 33899 648 8 be be VB 33899 648 9 well well RB 33899 648 10 ventilated ventilate VBN 33899 648 11 , , , 33899 648 12 in in IN 33899 648 13 order order NN 33899 648 14 to to TO 33899 648 15 provide provide VB 33899 648 16 for for IN 33899 648 17 the the DT 33899 648 18 escape escape NN 33899 648 19 of of IN 33899 648 20 moisture moisture NN 33899 648 21 which which WDT 33899 648 22 usually usually RB 33899 648 23 at at IN 33899 648 24 the the DT 33899 648 25 start start NN 33899 648 26 of of IN 33899 648 27 a a DT 33899 648 28 lantern lantern JJ 33899 648 29 exhibition exhibition NN 33899 648 30 is be VBZ 33899 648 31 deposited deposit VBN 33899 648 32 upon upon IN 33899 648 33 the the DT 33899 648 34 glass glass NN 33899 648 35 , , , 33899 648 36 and and CC 33899 648 37 should should MD 33899 648 38 be be VB 33899 648 39 got get VBN 33899 648 40 rid rid VBN 33899 648 41 of of IN 33899 648 42 before before IN 33899 648 43 the the DT 33899 648 44 actual actual JJ 33899 648 45 lecture lecture NN 33899 648 46 commences commence NNS 33899 648 47 . . . 33899 649 1 Even even RB 33899 649 2 with with IN 33899 649 3 all all DT 33899 649 4 care care NN 33899 649 5 , , , 33899 649 6 the the DT 33899 649 7 back back JJ 33899 649 8 component component NN 33899 649 9 of of IN 33899 649 10 a a DT 33899 649 11 condenser condenser NN 33899 649 12 will will MD 33899 649 13 sometimes sometimes RB 33899 649 14 crack crack VB 33899 649 15 , , , 33899 649 16 though though IN 33899 649 17 such such PDT 33899 649 18 an an DT 33899 649 19 accident accident NN 33899 649 20 should should MD 33899 649 21 be be VB 33899 649 22 a a DT 33899 649 23 rare rare JJ 33899 649 24 occurrence occurrence NN 33899 649 25 ; ; : 33899 649 26 and and CC 33899 649 27 hence hence RB 33899 649 28 a a DT 33899 649 29 professional professional JJ 33899 649 30 operator operator NN 33899 649 31 will will MD 33899 649 32 usually usually RB 33899 649 33 provide provide VB 33899 649 34 himself -PRON- PRP 33899 649 35 with with IN 33899 649 36 a a DT 33899 649 37 spare spare JJ 33899 649 38 lens lens NN 33899 649 39 , , , 33899 649 40 and and CC 33899 649 41 the the DT 33899 649 42 condenser condenser NN 33899 649 43 should should MD 33899 649 44 be be VB 33899 649 45 so so RB 33899 649 46 constructed construct VBN 33899 649 47 that that IN 33899 649 48 it -PRON- PRP 33899 649 49 can can MD 33899 649 50 readily readily RB 33899 649 51 be be VB 33899 649 52 changed change VBN 33899 649 53 , , , 33899 649 54 and and CC 33899 649 55 with with IN 33899 649 56 as as RB 33899 649 57 little little JJ 33899 649 58 delay delay NN 33899 649 59 as as IN 33899 649 60 possible possible JJ 33899 649 61 . . . 33899 650 1 Condenser condenser NN 33899 650 2 lenses lense NNS 33899 650 3 as as IN 33899 650 4 made make VBN 33899 650 5 in in IN 33899 650 6 this this DT 33899 650 7 country country NN 33899 650 8 are be VBP 33899 650 9 usually usually RB 33899 650 10 ground grind VBN 33899 650 11 from from IN 33899 650 12 the the DT 33899 650 13 glass glass NN 33899 650 14 known know VBN 33899 650 15 as as IN 33899 650 16 ' ' `` 33899 650 17 English English NNP 33899 650 18 Crown Crown NNP 33899 650 19 , , , 33899 650 20 ' ' '' 33899 650 21 and and CC 33899 650 22 comparatively comparatively RB 33899 650 23 rarely rarely RB 33899 650 24 crack crack VBP 33899 650 25 ; ; : 33899 650 26 but but CC 33899 650 27 they -PRON- PRP 33899 650 28 are be VBP 33899 650 29 very very RB 33899 650 30 slightly slightly RB 33899 650 31 green green JJ 33899 650 32 in in IN 33899 650 33 colour colour NN 33899 650 34 . . . 33899 651 1 French french JJ 33899 651 2 condensers condenser NNS 33899 651 3 , , , 33899 651 4 on on IN 33899 651 5 the the DT 33899 651 6 other other JJ 33899 651 7 hand hand NN 33899 651 8 , , , 33899 651 9 are be VBP 33899 651 10 whiter whiter NNP 33899 651 11 , , , 33899 651 12 but but CC 33899 651 13 the the DT 33899 651 14 glass glass NN 33899 651 15 is be VBZ 33899 651 16 more more RBR 33899 651 17 brittle brittle JJ 33899 651 18 , , , 33899 651 19 and and CC 33899 651 20 a a DT 33899 651 21 fracture fracture NN 33899 651 22 a a DT 33899 651 23 more more RBR 33899 651 24 common common JJ 33899 651 25 occurrence occurrence NN 33899 651 26 . . . 33899 652 1 The the DT 33899 652 2 French french JJ 33899 652 3 variety variety NN 33899 652 4 are be VBP 33899 652 5 ( ( -LRB- 33899 652 6 or or CC 33899 652 7 were be VBD 33899 652 8 before before IN 33899 652 9 the the DT 33899 652 10 war war NN 33899 652 11 ) ) -RRB- 33899 652 12 cheaper cheap JJR 33899 652 13 and and CC 33899 652 14 generally generally RB 33899 652 15 met meet VBN 33899 652 16 with with IN 33899 652 17 in in IN 33899 652 18 cheaper cheap JJR 33899 652 19 instruments instrument NNS 33899 652 20 . . . 33899 653 1 More more RBR 33899 653 2 expensive expensive JJ 33899 653 3 lanterns lantern NNS 33899 653 4 are be VBP 33899 653 5 usually usually RB 33899 653 6 fitted fit VBN 33899 653 7 with with IN 33899 653 8 English English NNP 33899 653 9 condensers condenser NNS 33899 653 10 , , , 33899 653 11 as as IN 33899 653 12 the the DT 33899 653 13 tinge tinge NN 33899 653 14 of of IN 33899 653 15 green green JJ 33899 653 16 is be VBZ 33899 653 17 almost almost RB 33899 653 18 imperceptible imperceptible JJ 33899 653 19 , , , 33899 653 20 and and CC 33899 653 21 the the DT 33899 653 22 advantage advantage NN 33899 653 23 as as IN 33899 653 24 regards regard VBZ 33899 653 25 greater great JJR 33899 653 26 security security NN 33899 653 27 pretty pretty RB 33899 653 28 considerable considerable JJ 33899 653 29 . . . 33899 654 1 THE the DT 33899 654 2 SLIDE SLIDE NNP 33899 654 3 CARRIER CARRIER NNS 33899 654 4 AND and CC 33899 654 5 SLIDE SLIDE NNP 33899 654 6 STAGE.--Taking stage.--take VBG 33899 654 7 still still RB 33899 654 8 the the DT 33899 654 9 optical optical JJ 33899 654 10 system system NN 33899 654 11 of of IN 33899 654 12 the the DT 33899 654 13 lantern lantern NN 33899 654 14 in in IN 33899 654 15 order order NN 33899 654 16 from from IN 33899 654 17 back back RB 33899 654 18 to to IN 33899 654 19 front front NN 33899 654 20 , , , 33899 654 21 we -PRON- PRP 33899 654 22 now now RB 33899 654 23 come come VBP 33899 654 24 to to IN 33899 654 25 the the DT 33899 654 26 slide slide NN 33899 654 27 , , , 33899 654 28 slide slide NN 33899 654 29 carrier carrier NN 33899 654 30 , , , 33899 654 31 and and CC 33899 654 32 slide slide NN 33899 654 33 stage stage NN 33899 654 34 . . . 33899 655 1 The the DT 33899 655 2 slide slide NN 33899 655 3 itself -PRON- PRP 33899 655 4 has have VBZ 33899 655 5 already already RB 33899 655 6 been be VBN 33899 655 7 described describe VBN 33899 655 8 , , , 33899 655 9 and and CC 33899 655 10 the the DT 33899 655 11 carrier carrier NN 33899 655 12 is be VBZ 33899 655 13 simply simply RB 33899 655 14 a a DT 33899 655 15 mechanical mechanical JJ 33899 655 16 contrivance contrivance NN 33899 655 17 , , , 33899 655 18 usually usually RB 33899 655 19 of of IN 33899 655 20 wood wood NN 33899 655 21 , , , 33899 655 22 designed design VBN 33899 655 23 for for IN 33899 655 24 the the DT 33899 655 25 purpose purpose NN 33899 655 26 of of IN 33899 655 27 readily readily RB 33899 655 28 changing change VBG 33899 655 29 the the DT 33899 655 30 pictures picture NNS 33899 655 31 and and CC 33899 655 32 which which WDT 33899 655 33 in in IN 33899 655 34 its -PRON- PRP$ 33899 655 35 turn turn NN 33899 655 36 fits fit VBZ 33899 655 37 into into IN 33899 655 38 the the DT 33899 655 39 stage stage NN 33899 655 40 of of IN 33899 655 41 the the DT 33899 655 42 lantern lantern NN 33899 655 43 . . . 33899 656 1 It -PRON- PRP 33899 656 2 may may MD 33899 656 3 be be VB 33899 656 4 asked ask VBN 33899 656 5 why why WRB 33899 656 6 , , , 33899 656 7 if if IN 33899 656 8 slides slide NNS 33899 656 9 are be VBP 33899 656 10 now now RB 33899 656 11 always always RB 33899 656 12 made make VBN 33899 656 13 to to IN 33899 656 14 a a DT 33899 656 15 standard standard JJ 33899 656 16 size size NN 33899 656 17 , , , 33899 656 18 the the DT 33899 656 19 slide slide NN 33899 656 20 carrier carrier NN 33899 656 21 should should MD 33899 656 22 not not RB 33899 656 23 itself -PRON- PRP 33899 656 24 be be VB 33899 656 25 built build VBN 33899 656 26 into into IN 33899 656 27 the the DT 33899 656 28 lantern lantern NN 33899 656 29 and and CC 33899 656 30 form form VB 33899 656 31 the the DT 33899 656 32 stage stage NN 33899 656 33 ; ; : 33899 656 34 but but CC 33899 656 35 the the DT 33899 656 36 answer answer NN 33899 656 37 is be VBZ 33899 656 38 , , , 33899 656 39 in in IN 33899 656 40 the the DT 33899 656 41 first first JJ 33899 656 42 place place NN 33899 656 43 , , , 33899 656 44 that that WDT 33899 656 45 slides slide NNS 33899 656 46 of of IN 33899 656 47 a a DT 33899 656 48 different different JJ 33899 656 49 size size NN 33899 656 50 , , , 33899 656 51 _ _ NNP 33899 656 52 i.e. i.e. FW 33899 656 53 _ _ NNP 33899 656 54 American American NNP 33899 656 55 or or CC 33899 656 56 Continental Continental NNP 33899 656 57 , , , 33899 656 58 _ _ NNP 33899 656 59 may may MD 33899 656 60 _ _ NNP 33899 656 61 be be VB 33899 656 62 met meet VBN 33899 656 63 with with IN 33899 656 64 , , , 33899 656 65 { { -LRB- 33899 656 66 62 62 CD 33899 656 67 } } -RRB- 33899 656 68 and and CC 33899 656 69 also also RB 33899 656 70 that that IN 33899 656 71 there there EX 33899 656 72 are be VBP 33899 656 73 various various JJ 33899 656 74 mechanical mechanical JJ 33899 656 75 slides slide NNS 33899 656 76 on on IN 33899 656 77 the the DT 33899 656 78 market market NN 33899 656 79 -- -- : 33899 656 80 for for IN 33899 656 81 example example NN 33899 656 82 , , , 33899 656 83 chromotropes chromotrope NNS 33899 656 84 or or CC 33899 656 85 scientific scientific JJ 33899 656 86 models model NNS 33899 656 87 , , , 33899 656 88 such such JJ 33899 656 89 for for IN 33899 656 90 instance instance NN 33899 656 91 as as IN 33899 656 92 are be VBP 33899 656 93 made make VBN 33899 656 94 to to TO 33899 656 95 illustrate illustrate VB 33899 656 96 the the DT 33899 656 97 movements movement NNS 33899 656 98 of of IN 33899 656 99 the the DT 33899 656 100 planetary planetary NN 33899 656 101 bodies body NNS 33899 656 102 -- -- : 33899 656 103 and and CC 33899 656 104 these these DT 33899 656 105 slides slide NNS 33899 656 106 are be VBP 33899 656 107 permanently permanently RB 33899 656 108 mounted mount VBN 33899 656 109 in in IN 33899 656 110 wooden wooden JJ 33899 656 111 frames frame NNS 33899 656 112 which which WDT 33899 656 113 could could MD 33899 656 114 not not RB 33899 656 115 be be VB 33899 656 116 put put VBN 33899 656 117 into into IN 33899 656 118 a a DT 33899 656 119 carrier carrier NN 33899 656 120 . . . 33899 657 1 The the DT 33899 657 2 commonest common JJS 33899 657 3 form form NN 33899 657 4 of of IN 33899 657 5 carrier carrier NN 33899 657 6 is be VBZ 33899 657 7 that that DT 33899 657 8 known know VBN 33899 657 9 as as IN 33899 657 10 the the DT 33899 657 11 ' ' `` 33899 657 12 Double double JJ 33899 657 13 Sliding Sliding NNP 33899 657 14 ' ' '' 33899 657 15 pattern pattern NN 33899 657 16 ( ( -LRB- 33899 657 17 Fig fig NN 33899 657 18 . . . 33899 658 1 37 37 CD 33899 658 2 ) ) -RRB- 33899 658 3 , , , 33899 658 4 which which WDT 33899 658 5 consists consist VBZ 33899 658 6 of of IN 33899 658 7 a a DT 33899 658 8 frame frame NN 33899 658 9 with with IN 33899 658 10 two two CD 33899 658 11 apertures aperture NNS 33899 658 12 for for IN 33899 658 13 the the DT 33899 658 14 slide slide NN 33899 658 15 , , , 33899 658 16 and and CC 33899 658 17 an an DT 33899 658 18 outer outer JJ 33899 658 19 frame frame NN 33899 658 20 through through IN 33899 658 21 which which WDT 33899 658 22 this this DT 33899 658 23 itself -PRON- PRP 33899 658 24 slides slide VBZ 33899 658 25 and and CC 33899 658 26 which which WDT 33899 658 27 fits fit VBZ 33899 658 28 the the DT 33899 658 29 stage stage NN 33899 658 30 of of IN 33899 658 31 the the DT 33899 658 32 lantern lantern NN 33899 658 33 . . . 33899 659 1 [ [ -LRB- 33899 659 2 Illustration illustration NN 33899 659 3 : : : 33899 659 4 FIG FIG NNP 33899 659 5 . . . 33899 660 1 37.--Double 37.--double LS 33899 660 2 Sliding Sliding NNP 33899 660 3 Carrier Carrier NNP 33899 660 4 . . . 33899 660 5 ] ] -RRB- 33899 661 1 This this DT 33899 661 2 carrier carrier NN 33899 661 3 , , , 33899 661 4 as as IN 33899 661 5 will will MD 33899 661 6 be be VB 33899 661 7 seen see VBN 33899 661 8 , , , 33899 661 9 allows allow VBZ 33899 661 10 the the DT 33899 661 11 next next JJ 33899 661 12 picture picture NN 33899 661 13 to to TO 33899 661 14 be be VB 33899 661 15 placed place VBN 33899 661 16 in in IN 33899 661 17 position position NN 33899 661 18 in in IN 33899 661 19 the the DT 33899 661 20 second second JJ 33899 661 21 aperture aperture NN 33899 661 22 while while IN 33899 661 23 the the DT 33899 661 24 former former JJ 33899 661 25 one one NN 33899 661 26 is be VBZ 33899 661 27 being be VBG 33899 661 28 projected project VBN 33899 661 29 , , , 33899 661 30 and and CC 33899 661 31 at at IN 33899 661 32 a a DT 33899 661 33 signal signal NN 33899 661 34 from from IN 33899 661 35 the the DT 33899 661 36 lecturer lecturer NN 33899 661 37 , , , 33899 661 38 the the DT 33899 661 39 inner inner JJ 33899 661 40 frame frame NN 33899 661 41 slides slide VBZ 33899 661 42 smoothly smoothly RB 33899 661 43 through through IN 33899 661 44 the the DT 33899 661 45 outer outer NN 33899 661 46 , , , 33899 661 47 and and CC 33899 661 48 the the DT 33899 661 49 slides slide NNS 33899 661 50 are be VBP 33899 661 51 thereby thereby RB 33899 661 52 changed change VBN 33899 661 53 . . . 33899 662 1 This this DT 33899 662 2 carrier carrier NN 33899 662 3 is be VBZ 33899 662 4 simple simple JJ 33899 662 5 , , , 33899 662 6 cheap cheap JJ 33899 662 7 , , , 33899 662 8 and and CC 33899 662 9 quiet quiet JJ 33899 662 10 in in IN 33899 662 11 its -PRON- PRP$ 33899 662 12 action action NN 33899 662 13 ; ; : 33899 662 14 its -PRON- PRP$ 33899 662 15 one one CD 33899 662 16 disadvantage disadvantage NN 33899 662 17 is be VBZ 33899 662 18 that that IN 33899 662 19 each each DT 33899 662 20 alternate alternate JJ 33899 662 21 slide slide NN 33899 662 22 has have VBZ 33899 662 23 to to TO 33899 662 24 be be VB 33899 662 25 inserted insert VBN 33899 662 26 from from IN 33899 662 27 opposite opposite JJ 33899 662 28 sides side NNS 33899 662 29 of of IN 33899 662 30 the the DT 33899 662 31 lantern lantern NN 33899 662 32 , , , 33899 662 33 and and CC 33899 662 34 unless unless IN 33899 662 35 the the DT 33899 662 36 operator operator NN 33899 662 37 is be VBZ 33899 662 38 fairly fairly RB 33899 662 39 tall tall JJ 33899 662 40 this this DT 33899 662 41 almost almost RB 33899 662 42 necessitates necessitate VBZ 33899 662 43 an an DT 33899 662 44 assistant assistant NN 33899 662 45 . . . 33899 663 1 Nevertheless nevertheless RB 33899 663 2 , , , 33899 663 3 the the DT 33899 663 4 carrier carrier NN 33899 663 5 is be VBZ 33899 663 6 the the DT 33899 663 7 most most RBS 33899 663 8 popular popular JJ 33899 663 9 of of IN 33899 663 10 any any DT 33899 663 11 , , , 33899 663 12 its -PRON- PRP$ 33899 663 13 other other JJ 33899 663 14 advantages advantage NNS 33899 663 15 , , , 33899 663 16 especially especially RB 33899 663 17 as as IN 33899 663 18 regards regard VBZ 33899 663 19 price price NN 33899 663 20 , , , 33899 663 21 being be VBG 33899 663 22 so so RB 33899 663 23 great great JJ 33899 663 24 . . . 33899 664 1 It -PRON- PRP 33899 664 2 is be VBZ 33899 664 3 usually usually RB 33899 664 4 constructed construct VBN 33899 664 5 in in IN 33899 664 6 such such PDT 33899 664 7 a a DT 33899 664 8 way way NN 33899 664 9 that that WDT 33899 664 10 the the DT 33899 664 11 slide slide NN 33899 664 12 , , , 33899 664 13 as as IN 33899 664 14 it -PRON- PRP 33899 664 15 moves move VBZ 33899 664 16 out out RP 33899 664 17 from from IN 33899 664 18 the the DT 33899 664 19 central central JJ 33899 664 20 position position NN 33899 664 21 , , , 33899 664 22 automatically automatically RB 33899 664 23 rises rise VBZ 33899 664 24 in in IN 33899 664 25 its -PRON- PRP$ 33899 664 26 groove groove NN 33899 664 27 in in IN 33899 664 28 order order NN 33899 664 29 to to TO 33899 664 30 facilitate facilitate VB 33899 664 31 quick quick JJ 33899 664 32 removal removal NN 33899 664 33 . . . 33899 665 1 Another another DT 33899 665 2 pattern pattern NN 33899 665 3 deservedly deservedly RB 33899 665 4 popular popular JJ 33899 665 5 is be VBZ 33899 665 6 that that RB 33899 665 7 known know VBN 33899 665 8 as as IN 33899 665 9 { { -LRB- 33899 665 10 63 63 CD 33899 665 11 } } -RRB- 33899 665 12 ' ' `` 33899 665 13 Beard Beard NNP 33899 665 14 's 's POS 33899 665 15 Dissolving Dissolving NNP 33899 665 16 Carrier Carrier NNP 33899 665 17 ' ' '' 33899 665 18 and and CC 33899 665 19 is be VBZ 33899 665 20 shown show VBN 33899 665 21 in in IN 33899 665 22 Fig Fig NNP 33899 665 23 . . . 33899 666 1 38 38 CD 33899 666 2 . . . 33899 667 1 In in IN 33899 667 2 this this DT 33899 667 3 ingenious ingenious JJ 33899 667 4 carrier carrier NN 33899 667 5 all all PDT 33899 667 6 the the DT 33899 667 7 slides slide NNS 33899 667 8 are be VBP 33899 667 9 inserted insert VBN 33899 667 10 from from IN 33899 667 11 the the DT 33899 667 12 same same JJ 33899 667 13 side side NN 33899 667 14 , , , 33899 667 15 the the DT 33899 667 16 oncoming oncoming JJ 33899 667 17 slide slide NN 33899 667 18 being be VBG 33899 667 19 pushed push VBN 33899 667 20 _ _ NNP 33899 667 21 in in IN 33899 667 22 front front JJ 33899 667 23 _ _ NNP 33899 667 24 of of IN 33899 667 25 its -PRON- PRP$ 33899 667 26 predecessor predecessor NN 33899 667 27 , , , 33899 667 28 and and CC 33899 667 29 being be VBG 33899 667 30 therefore therefore RB 33899 667 31 somewhat somewhat RB 33899 667 32 out out IN 33899 667 33 of of IN 33899 667 34 focus focus NN 33899 667 35 it -PRON- PRP 33899 667 36 produces produce VBZ 33899 667 37 a a DT 33899 667 38 blur blur NN 33899 667 39 on on IN 33899 667 40 the the DT 33899 667 41 screen screen NN 33899 667 42 . . . 33899 668 1 The the DT 33899 668 2 movement movement NN 33899 668 3 is be VBZ 33899 668 4 performed perform VBN 33899 668 5 by by IN 33899 668 6 pushing push VBG 33899 668 7 in in RP 33899 668 8 a a DT 33899 668 9 projecting projecting NN 33899 668 10 handle handle NN 33899 668 11 , , , 33899 668 12 and and CC 33899 668 13 on on IN 33899 668 14 withdrawing withdraw VBG 33899 668 15 this this DT 33899 668 16 the the DT 33899 668 17 slide slide NN 33899 668 18 which which WDT 33899 668 19 is be VBZ 33899 668 20 finished finish VBN 33899 668 21 with with IN 33899 668 22 comes come VBZ 33899 668 23 with with IN 33899 668 24 it -PRON- PRP 33899 668 25 , , , 33899 668 26 and and CC 33899 668 27 the the DT 33899 668 28 finish finish NN 33899 668 29 of of IN 33899 668 30 the the DT 33899 668 31 movement movement NN 33899 668 32 presses press VBZ 33899 668 33 the the DT 33899 668 34 new new JJ 33899 668 35 slide slide NN 33899 668 36 back back RB 33899 668 37 until until IN 33899 668 38 it -PRON- PRP 33899 668 39 is be VBZ 33899 668 40 in in IN 33899 668 41 its -PRON- PRP$ 33899 668 42 proper proper JJ 33899 668 43 position position NN 33899 668 44 and and CC 33899 668 45 in in IN 33899 668 46 focus focus NN 33899 668 47 . . . 33899 669 1 [ [ -LRB- 33899 669 2 Illustration illustration NN 33899 669 3 : : : 33899 669 4 FIG FIG NNP 33899 669 5 . . . 33899 670 1 38.--Beard 38.--beard CD 33899 670 2 's 's POS 33899 670 3 Dissolving Dissolving NNP 33899 670 4 Carrier Carrier NNP 33899 670 5 . . . 33899 670 6 ] ] -RRB- 33899 671 1 The the DT 33899 671 2 entire entire JJ 33899 671 3 action action NN 33899 671 4 is be VBZ 33899 671 5 simpler simple JJR 33899 671 6 than than IN 33899 671 7 it -PRON- PRP 33899 671 8 sounds sound VBZ 33899 671 9 , , , 33899 671 10 and and CC 33899 671 11 the the DT 33899 671 12 temporary temporary JJ 33899 671 13 blurring blurring NN 33899 671 14 of of IN 33899 671 15 the the DT 33899 671 16 image image NN 33899 671 17 on on IN 33899 671 18 the the DT 33899 671 19 screen screen NN 33899 671 20 during during IN 33899 671 21 the the DT 33899 671 22 process process NN 33899 671 23 of of IN 33899 671 24 changing change VBG 33899 671 25 is be VBZ 33899 671 26 supposed suppose VBN 33899 671 27 to to TO 33899 671 28 give give VB 33899 671 29 somewhat somewhat RB 33899 671 30 the the DT 33899 671 31 effect effect NN 33899 671 32 of of IN 33899 671 33 ' ' `` 33899 671 34 Dissolving Dissolving NNP 33899 671 35 Views Views NNPS 33899 671 36 , , , 33899 671 37 ' ' '' 33899 671 38 and and CC 33899 671 39 hence hence RB 33899 671 40 the the DT 33899 671 41 name name NN 33899 671 42 ' ' `` 33899 671 43 Dissolving Dissolving NNP 33899 671 44 Carrier Carrier NNP 33899 671 45 . . . 33899 671 46 ' ' '' 33899 672 1 This this DT 33899 672 2 appliance appliance NN 33899 672 3 is be VBZ 33899 672 4 three three CD 33899 672 5 times time NNS 33899 672 6 the the DT 33899 672 7 price price NN 33899 672 8 of of IN 33899 672 9 the the DT 33899 672 10 ' ' `` 33899 672 11 Double double JJ 33899 672 12 Sliding Sliding NNP 33899 672 13 ' ' '' 33899 672 14 pattern pattern NN 33899 672 15 , , , 33899 672 16 but but CC 33899 672 17 the the DT 33899 672 18 fact fact NN 33899 672 19 that that IN 33899 672 20 it -PRON- PRP 33899 672 21 is be VBZ 33899 672 22 worked work VBN 33899 672 23 from from IN 33899 672 24 one one CD 33899 672 25 side side NN 33899 672 26 only only RB 33899 672 27 is be VBZ 33899 672 28 a a DT 33899 672 29 decided decided JJ 33899 672 30 advantage advantage NN 33899 672 31 , , , 33899 672 32 though though RB 33899 672 33 on on IN 33899 672 34 the the DT 33899 672 35 other other JJ 33899 672 36 hand hand NN 33899 672 37 it -PRON- PRP 33899 672 38 is be VBZ 33899 672 39 not not RB 33899 672 40 ( ( -LRB- 33899 672 41 unless unless IN 33899 672 42 great great JJ 33899 672 43 care care NN 33899 672 44 is be VBZ 33899 672 45 used use VBN 33899 672 46 ) ) -RRB- 33899 672 47 quite quite RB 33899 672 48 so so RB 33899 672 49 silent silent JJ 33899 672 50 in in IN 33899 672 51 its -PRON- PRP$ 33899 672 52 action action NN 33899 672 53 as as IN 33899 672 54 the the DT 33899 672 55 ' ' `` 33899 672 56 Double double JJ 33899 672 57 Sliding Sliding NNP 33899 672 58 ' ' POS 33899 672 59 type type NN 33899 672 60 . . . 33899 673 1 A a DT 33899 673 2 further further JJ 33899 673 3 modification modification NN 33899 673 4 of of IN 33899 673 5 this this DT 33899 673 6 carrier carrier NN 33899 673 7 adapts adapt VBZ 33899 673 8 it -PRON- PRP 33899 673 9 to to TO 33899 673 10 take take VB 33899 673 11 any any DT 33899 673 12 of of IN 33899 673 13 the the DT 33899 673 14 recognised recognise VBN 33899 673 15 ' ' `` 33899 673 16 foreign foreign JJ 33899 673 17 ' ' '' 33899 673 18 sizes size NNS 33899 673 19 of of IN 33899 673 20 slides slide NNS 33899 673 21 , , , 33899 673 22 so so IN 33899 673 23 that that IN 33899 673 24 if if IN 33899 673 25 a a DT 33899 673 26 few few JJ 33899 673 27 American american JJ 33899 673 28 ones one NNS 33899 673 29 , , , 33899 673 30 for for IN 33899 673 31 instance instance NN 33899 673 32 , , , 33899 673 33 are be VBP 33899 673 34 met meet VBN 33899 673 35 with with IN 33899 673 36 among among IN 33899 673 37 a a DT 33899 673 38 collection collection NN 33899 673 39 of of IN 33899 673 40 English English NNP 33899 673 41 manufacture manufacture NN 33899 673 42 , , , 33899 673 43 there there EX 33899 673 44 is be VBZ 33899 673 45 no no DT 33899 673 46 need need NN 33899 673 47 to to TO 33899 673 48 change change VB 33899 673 49 the the DT 33899 673 50 carrier carrier NN 33899 673 51 . . . 33899 674 1 { { -LRB- 33899 674 2 64 64 CD 33899 674 3 } } -RRB- 33899 674 4 There there EX 33899 674 5 are be VBP 33899 674 6 other other JJ 33899 674 7 varieties variety NNS 33899 674 8 of of IN 33899 674 9 carriers carrier NNS 33899 674 10 on on IN 33899 674 11 the the DT 33899 674 12 market market NN 33899 674 13 which which WDT 33899 674 14 there there EX 33899 674 15 is be VBZ 33899 674 16 no no DT 33899 674 17 need need NN 33899 674 18 particularly particularly RB 33899 674 19 to to TO 33899 674 20 describe describe VB 33899 674 21 , , , 33899 674 22 such such JJ 33899 674 23 as as IN 33899 674 24 , , , 33899 674 25 for for IN 33899 674 26 example example NN 33899 674 27 , , , 33899 674 28 carriers carrier NNS 33899 674 29 fitted fit VBD 33899 674 30 with with IN 33899 674 31 roller roller NN 33899 674 32 curtains curtain NNS 33899 674 33 to to TO 33899 674 34 give give VB 33899 674 35 the the DT 33899 674 36 effect effect NN 33899 674 37 of of IN 33899 674 38 a a DT 33899 674 39 curtain curtain NN 33899 674 40 rolling roll VBG 33899 674 41 up up RP 33899 674 42 , , , 33899 674 43 magazine magazine NN 33899 674 44 carriers carrier NNS 33899 674 45 to to TO 33899 674 46 hold hold VB 33899 674 47 twenty twenty CD 33899 674 48 - - HYPH 33899 674 49 four four CD 33899 674 50 or or CC 33899 674 51 more more JJR 33899 674 52 slides slide NNS 33899 674 53 and and CC 33899 674 54 exhibit exhibit VB 33899 674 55 them -PRON- PRP 33899 674 56 in in IN 33899 674 57 rotation rotation NN 33899 674 58 , , , 33899 674 59 and and CC 33899 674 60 other other JJ 33899 674 61 patterns pattern NNS 33899 674 62 too too RB 33899 674 63 numerous numerous JJ 33899 674 64 to to TO 33899 674 65 mention mention VB 33899 674 66 . . . 33899 675 1 Of of IN 33899 675 2 these these DT 33899 675 3 the the DT 33899 675 4 reader reader NN 33899 675 5 must must MD 33899 675 6 be be VB 33899 675 7 left leave VBN 33899 675 8 to to TO 33899 675 9 judge judge VB 33899 675 10 for for IN 33899 675 11 himself -PRON- PRP 33899 675 12 , , , 33899 675 13 but but CC 33899 675 14 , , , 33899 675 15 generally generally RB 33899 675 16 speaking speak VBG 33899 675 17 , , , 33899 675 18 _ _ NNP 33899 675 19 simplicity simplicity NN 33899 675 20 _ _ NNP 33899 675 21 in in IN 33899 675 22 a a DT 33899 675 23 carrier carrier NN 33899 675 24 is be VBZ 33899 675 25 the the DT 33899 675 26 most most RBS 33899 675 27 important important JJ 33899 675 28 point point NN 33899 675 29 to to TO 33899 675 30 be be VB 33899 675 31 looked look VBN 33899 675 32 for for IN 33899 675 33 , , , 33899 675 34 and and CC 33899 675 35 complications complication NNS 33899 675 36 , , , 33899 675 37 however however RB 33899 675 38 ingenious ingenious JJ 33899 675 39 , , , 33899 675 40 should should MD 33899 675 41 be be VB 33899 675 42 avoided avoid VBN 33899 675 43 . . . 33899 676 1 [ [ -LRB- 33899 676 2 Illustration illustration NN 33899 676 3 : : : 33899 676 4 FIG FIG NNP 33899 676 5 . . . 33899 677 1 39.--Focussing 39.--focussing JJ 33899 677 2 Action Action NNP 33899 677 3 of of IN 33899 677 4 Lens Lens NNP 33899 677 5 . . . 33899 677 6 ] ] -RRB- 33899 678 1 The the DT 33899 678 2 lantern lantern JJ 33899 678 3 stage stage NN 33899 678 4 must must MD 33899 678 5 also also RB 33899 678 6 receive receive VB 33899 678 7 consideration consideration NN 33899 678 8 , , , 33899 678 9 but but CC 33899 678 10 it -PRON- PRP 33899 678 11 will will MD 33899 678 12 be be VB 33899 678 13 better well JJR 33899 678 14 to to TO 33899 678 15 discuss discuss VB 33899 678 16 it -PRON- PRP 33899 678 17 as as IN 33899 678 18 part part NN 33899 678 19 of of IN 33899 678 20 the the DT 33899 678 21 mechanical mechanical JJ 33899 678 22 construction construction NN 33899 678 23 of of IN 33899 678 24 the the DT 33899 678 25 lantern lantern NN 33899 678 26 . . . 33899 679 1 THE the DT 33899 679 2 OBJECTIVE OBJECTIVE NNP 33899 679 3 is be VBZ 33899 679 4 really really RB 33899 679 5 the the DT 33899 679 6 most most RBS 33899 679 7 vital vital JJ 33899 679 8 part part NN 33899 679 9 of of IN 33899 679 10 a a DT 33899 679 11 lantern lantern NN 33899 679 12 , , , 33899 679 13 as as IN 33899 679 14 the the DT 33899 679 15 definition definition NN 33899 679 16 of of IN 33899 679 17 the the DT 33899 679 18 picture picture NN 33899 679 19 almost almost RB 33899 679 20 entirely entirely RB 33899 679 21 depends depend VBZ 33899 679 22 upon upon IN 33899 679 23 the the DT 33899 679 24 excellence excellence NN 33899 679 25 or or CC 33899 679 26 otherwise otherwise RB 33899 679 27 of of IN 33899 679 28 this this DT 33899 679 29 lens lens NN 33899 679 30 . . . 33899 680 1 This this DT 33899 680 2 will will MD 33899 680 3 be be VB 33899 680 4 obvious obvious JJ 33899 680 5 at at IN 33899 680 6 once once RB 33899 680 7 when when WRB 33899 680 8 it -PRON- PRP 33899 680 9 is be VBZ 33899 680 10 realised realise VBN 33899 680 11 that that IN 33899 680 12 the the DT 33899 680 13 objective objective NN 33899 680 14 has have VBZ 33899 680 15 to to TO 33899 680 16 project project VB 33899 680 17 on on IN 33899 680 18 to to IN 33899 680 19 the the DT 33899 680 20 distant distant JJ 33899 680 21 screen screen NN 33899 680 22 a a DT 33899 680 23 greatly greatly RB 33899 680 24 magnified magnify VBN 33899 680 25 image image NN 33899 680 26 of of IN 33899 680 27 the the DT 33899 680 28 comparatively comparatively RB 33899 680 29 small small JJ 33899 680 30 lantern lantern JJ 33899 680 31 slide slide NN 33899 680 32 , , , 33899 680 33 and and CC 33899 680 34 the the DT 33899 680 35 intending intend VBG 33899 680 36 purchaser purchaser NN 33899 680 37 is be VBZ 33899 680 38 strongly strongly RB 33899 680 39 advised advise VBN 33899 680 40 to to TO 33899 680 41 economise economise VB 33899 680 42 almost almost RB 33899 680 43 anywhere anywhere RB 33899 680 44 rather rather RB 33899 680 45 than than IN 33899 680 46 on on IN 33899 680 47 this this DT 33899 680 48 item item NN 33899 680 49 . . . 33899 681 1 The the DT 33899 681 2 action action NN 33899 681 3 of of IN 33899 681 4 a a DT 33899 681 5 lens lens NN 33899 681 6 in in IN 33899 681 7 focussing focusse VBG 33899 681 8 the the DT 33899 681 9 image image NN 33899 681 10 is be VBZ 33899 681 11 perhaps perhaps RB 33899 681 12 best best RB 33899 681 13 explained explain VBN 33899 681 14 by by IN 33899 681 15 a a DT 33899 681 16 simple simple JJ 33899 681 17 diagram diagram NN 33899 681 18 ( ( -LRB- 33899 681 19 Fig fig NN 33899 681 20 . . . 33899 682 1 39 39 CD 33899 682 2 ) ) -RRB- 33899 682 3 , , , 33899 682 4 from from IN 33899 682 5 which which WDT 33899 682 6 it -PRON- PRP 33899 682 7 will will MD 33899 682 8 be be VB 33899 682 9 seen see VBN 33899 682 10 that that IN 33899 682 11 all all PDT 33899 682 12 the the DT 33899 682 13 rays ray NNS 33899 682 14 proceeding proceed VBG 33899 682 15 from from IN 33899 682 16 any any DT 33899 682 17 one one CD 33899 682 18 point point NN 33899 682 19 on on IN 33899 682 20 the the DT 33899 682 21 object object NN 33899 682 22 are be VBP 33899 682 23 re re JJ 33899 682 24 - - VBN 33899 682 25 converged converged JJ 33899 682 26 ( ( -LRB- 33899 682 27 when when WRB 33899 682 28 the the DT 33899 682 29 lens lens NN 33899 682 30 is be VBZ 33899 682 31 in in IN 33899 682 32 focus focus NN 33899 682 33 ) ) -RRB- 33899 682 34 to to IN 33899 682 35 a a DT 33899 682 36 definite definite JJ 33899 682 37 point point NN 33899 682 38 on on IN 33899 682 39 the the DT 33899 682 40 image image NN 33899 682 41 , , , 33899 682 42 and and CC 33899 682 43 the the DT 33899 682 44 perfection perfection NN 33899 682 45 of of IN 33899 682 46 the the DT 33899 682 47 picture picture NN 33899 682 48 depends depend VBZ 33899 682 49 upon upon IN 33899 682 50 the the DT 33899 682 51 lens lens NN 33899 682 52 performing perform VBG 33899 682 53 this this DT 33899 682 54 function function NN 33899 682 55 accurately accurately RB 33899 682 56 . . . 33899 683 1 { { -LRB- 33899 683 2 65 65 CD 33899 683 3 } } -RRB- 33899 683 4 The the DT 33899 683 5 imperfections imperfection NNS 33899 683 6 are be VBP 33899 683 7 chiefly chiefly RB 33899 683 8 two two CD 33899 683 9 , , , 33899 683 10 viz viz NN 33899 683 11 . . . 33899 684 1 those those DT 33899 684 2 known know VBN 33899 684 3 as as IN 33899 684 4 chromatic chromatic JJ 33899 684 5 and and CC 33899 684 6 spherical spherical JJ 33899 684 7 aberration aberration NN 33899 684 8 respectively respectively RB 33899 684 9 . . . 33899 685 1 Chromatic chromatic JJ 33899 685 2 aberration aberration NN 33899 685 3 simply simply RB 33899 685 4 means mean VBZ 33899 685 5 that that IN 33899 685 6 all all PDT 33899 685 7 the the DT 33899 685 8 colours colour NNS 33899 685 9 composing compose VBG 33899 685 10 the the DT 33899 685 11 original original JJ 33899 685 12 beam beam NN 33899 685 13 of of IN 33899 685 14 , , , 33899 685 15 say say UH 33899 685 16 , , , 33899 685 17 white white JJ 33899 685 18 light light NN 33899 685 19 are be VBP 33899 685 20 not not RB 33899 685 21 equally equally RB 33899 685 22 refracted refract VBN 33899 685 23 or or CC 33899 685 24 converged converged JJ 33899 685 25 , , , 33899 685 26 and and CC 33899 685 27 therefore therefore RB 33899 685 28 do do VBP 33899 685 29 not not RB 33899 685 30 meet meet VB 33899 685 31 again again RB 33899 685 32 at at IN 33899 685 33 the the DT 33899 685 34 same same JJ 33899 685 35 spot spot NN 33899 685 36 ( ( -LRB- 33899 685 37 the the DT 33899 685 38 well well RB 33899 685 39 - - HYPH 33899 685 40 known know VBN 33899 685 41 prism prism NN 33899 685 42 or or CC 33899 685 43 lustre lustre NN 33899 685 44 effect effect NN 33899 685 45 ) ) -RRB- 33899 685 46 , , , 33899 685 47 and and CC 33899 685 48 reveals reveal VBZ 33899 685 49 itself -PRON- PRP 33899 685 50 by by IN 33899 685 51 coloured coloured JJ 33899 685 52 fringes fringe NNS 33899 685 53 round round VBP 33899 685 54 the the DT 33899 685 55 edges edge NNS 33899 685 56 of of IN 33899 685 57 the the DT 33899 685 58 various various JJ 33899 685 59 details detail NNS 33899 685 60 in in IN 33899 685 61 the the DT 33899 685 62 picture picture NN 33899 685 63 . . . 33899 686 1 [ [ -LRB- 33899 686 2 Illustration illustration NN 33899 686 3 : : : 33899 686 4 FIG FIG NNP 33899 686 5 . . . 33899 687 1 40.--Achromatic 40.--achromatic CD 33899 687 2 Lens Lens NNP 33899 687 3 . . . 33899 687 4 ] ] -RRB- 33899 688 1 By by IN 33899 688 2 spherical spherical JJ 33899 688 3 aberration aberration NN 33899 688 4 we -PRON- PRP 33899 688 5 mean mean VBP 33899 688 6 that that IN 33899 688 7 the the DT 33899 688 8 light light NN 33899 688 9 falling fall VBG 33899 688 10 upon upon IN 33899 688 11 the the DT 33899 688 12 centre centre NN 33899 688 13 of of IN 33899 688 14 a a DT 33899 688 15 lens lens NN 33899 688 16 is be VBZ 33899 688 17 not not RB 33899 688 18 brought bring VBN 33899 688 19 to to IN 33899 688 20 a a DT 33899 688 21 focus focus NN 33899 688 22 at at IN 33899 688 23 exactly exactly RB 33899 688 24 the the DT 33899 688 25 same same JJ 33899 688 26 spot spot NN 33899 688 27 as as IN 33899 688 28 the the DT 33899 688 29 marginal marginal JJ 33899 688 30 rays ray NNS 33899 688 31 , , , 33899 688 32 and and CC 33899 688 33 a a DT 33899 688 34 general general JJ 33899 688 35 want want NN 33899 688 36 of of IN 33899 688 37 definition definition NN 33899 688 38 is be VBZ 33899 688 39 the the DT 33899 688 40 result result NN 33899 688 41 , , , 33899 688 42 usually usually RB 33899 688 43 accompanied accompany VBN 33899 688 44 also also RB 33899 688 45 by by IN 33899 688 46 a a DT 33899 688 47 want want NN 33899 688 48 of of IN 33899 688 49 ' ' `` 33899 688 50 flatness flatness NN 33899 688 51 ' ' '' 33899 688 52 in in IN 33899 688 53 the the DT 33899 688 54 image image NN 33899 688 55 , , , 33899 688 56 that that DT 33899 688 57 is be VBZ 33899 688 58 to to TO 33899 688 59 say say VB 33899 688 60 the the DT 33899 688 61 edges edge NNS 33899 688 62 of of IN 33899 688 63 the the DT 33899 688 64 picture picture NN 33899 688 65 do do VBP 33899 688 66 not not RB 33899 688 67 focus focus VB 33899 688 68 at at IN 33899 688 69 the the DT 33899 688 70 same same JJ 33899 688 71 time time NN 33899 688 72 as as IN 33899 688 73 the the DT 33899 688 74 centre centre NN 33899 688 75 . . . 33899 689 1 Chromatic chromatic JJ 33899 689 2 aberration aberration NN 33899 689 3 is be VBZ 33899 689 4 easily easily RB 33899 689 5 cured cure VBN 33899 689 6 by by IN 33899 689 7 using use VBG 33899 689 8 an an DT 33899 689 9 achromatic achromatic JJ 33899 689 10 or or CC 33899 689 11 compound compound NN 33899 689 12 lens lens NN 33899 689 13 made make VBN 33899 689 14 by by IN 33899 689 15 cementing cement VBG 33899 689 16 together together RB 33899 689 17 two two CD 33899 689 18 lenses lense NNS 33899 689 19 of of IN 33899 689 20 crown crown NN 33899 689 21 and and CC 33899 689 22 flint flint NN 33899 689 23 glass glass NN 33899 689 24 respectively respectively RB 33899 689 25 , , , 33899 689 26 as as IN 33899 689 27 in in IN 33899 689 28 Fig Fig NNP 33899 689 29 . . . 33899 690 1 40 40 CD 33899 690 2 . . . 33899 691 1 It -PRON- PRP 33899 691 2 will will MD 33899 691 3 be be VB 33899 691 4 seen see VBN 33899 691 5 that that IN 33899 691 6 the the DT 33899 691 7 flint flint NN 33899 691 8 glass glass NN 33899 691 9 component component NN 33899 691 10 by by IN 33899 691 11 itself -PRON- PRP 33899 691 12 is be VBZ 33899 691 13 a a DT 33899 691 14 _ _ NNP 33899 691 15 concave concave NNP 33899 691 16 _ _ NNP 33899 691 17 lens lens NN 33899 691 18 and and CC 33899 691 19 therefore therefore RB 33899 691 20 neutralises neutralise NNS 33899 691 21 in in IN 33899 691 22 part part NN 33899 691 23 , , , 33899 691 24 or or CC 33899 691 25 in in IN 33899 691 26 whole whole NN 33899 691 27 , , , 33899 691 28 the the DT 33899 691 29 convex convex NNP 33899 691 30 crown crown NNP 33899 691 31 lens lens NNP 33899 691 32 . . . 33899 692 1 Flint flint NN 33899 692 2 glass glass NN 33899 692 3 has have VBZ 33899 692 4 both both CC 33899 692 5 greater great JJR 33899 692 6 dispersive dispersive JJ 33899 692 7 power power NN 33899 692 8 and and CC 33899 692 9 also also RB 33899 692 10 greater great JJR 33899 692 11 refractive refractive JJ 33899 692 12 power power NN 33899 692 13 than than IN 33899 692 14 crown crown NN 33899 692 15 glass glass NN 33899 692 16 , , , 33899 692 17 but but CC 33899 692 18 fortunately fortunately RB 33899 692 19 not not RB 33899 692 20 to to IN 33899 692 21 the the DT 33899 692 22 same same JJ 33899 692 23 _ _ NNP 33899 692 24 degree degree NN 33899 692 25 _ _ NNP 33899 692 26 ; ; : 33899 692 27 hence hence RB 33899 692 28 a a DT 33899 692 29 compound compound NN 33899 692 30 lens lens NN 33899 692 31 made make VBN 33899 692 32 in in IN 33899 692 33 this this DT 33899 692 34 way way NN 33899 692 35 and and CC 33899 692 36 with with IN 33899 692 37 curves curve NNS 33899 692 38 carefully carefully RB 33899 692 39 worked work VBD 33899 692 40 out out RP 33899 692 41 may may MD 33899 692 42 have have VB 33899 692 43 its -PRON- PRP$ 33899 692 44 chromatic chromatic JJ 33899 692 45 effect effect NN 33899 692 46 entirely entirely RB 33899 692 47 neutralised neutralise VBN 33899 692 48 while while IN 33899 692 49 retaining retain VBG 33899 692 50 very very RB 33899 692 51 considerable considerable JJ 33899 692 52 refractive refractive JJ 33899 692 53 or or CC 33899 692 54 ' ' `` 33899 692 55 focussing focusse VBG 33899 692 56 ' ' '' 33899 692 57 power power NN 33899 692 58 , , , 33899 692 59 and and CC 33899 692 60 simple simple JJ 33899 692 61 achromatic achromatic JJ 33899 692 62 objectives objective NNS 33899 692 63 of of IN 33899 692 64 this this DT 33899 692 65 type type NN 33899 692 66 are be VBP 33899 692 67 quite quite RB 33899 692 68 inexpensive inexpensive JJ 33899 692 69 . . . 33899 693 1 In in IN 33899 693 2 lanterns lantern NNS 33899 693 3 intended intend VBN 33899 693 4 for for IN 33899 693 5 Science Science NNP 33899 693 6 demonstration demonstration NN 33899 693 7 , , , 33899 693 8 as as IN 33899 693 9 distinct distinct JJ 33899 693 10 from from IN 33899 693 11 the the DT 33899 693 12 mere mere JJ 33899 693 13 projection projection NN 33899 693 14 of of IN 33899 693 15 slides slide NNS 33899 693 16 , , , 33899 693 17 lenses lense NNS 33899 693 18 of of IN 33899 693 19 this this DT 33899 693 20 pattern pattern NN 33899 693 21 are be VBP 33899 693 22 very very RB 33899 693 23 frequently frequently RB 33899 693 24 used use VBN 33899 693 25 , , , 33899 693 26 as as IN 33899 693 27 they -PRON- PRP 33899 693 28 will will MD 33899 693 29 project project VB 33899 693 30 the the DT 33899 693 31 latter latter JJ 33899 693 32 when when WRB 33899 693 33 required require VBN 33899 693 34 reasonably reasonably RB 33899 693 35 well well RB 33899 693 36 , , , 33899 693 37 and and CC 33899 693 38 for for IN 33899 693 39 the the DT 33899 693 40 demonstration demonstration NN 33899 693 41 of of IN 33899 693 42 { { -LRB- 33899 693 43 66 66 CD 33899 693 44 } } -RRB- 33899 693 45 experiments experiment NNS 33899 693 46 or or CC 33899 693 47 of of IN 33899 693 48 apparatus apparatus NN 33899 693 49 on on IN 33899 693 50 the the DT 33899 693 51 screen screen NN 33899 693 52 have have VBP 33899 693 53 advantages advantage NNS 33899 693 54 that that WDT 33899 693 55 need nee MD 33899 693 56 not not RB 33899 693 57 be be VB 33899 693 58 discussed discuss VBN 33899 693 59 here here RB 33899 693 60 . . . 33899 694 1 For for IN 33899 694 2 very very RB 33899 694 3 long long JJ 33899 694 4 focus focus NN 33899 694 5 lenses lense NNS 33899 694 6 also also RB 33899 694 7 they -PRON- PRP 33899 694 8 are be VBP 33899 694 9 sometimes sometimes RB 33899 694 10 employed employ VBN 33899 694 11 , , , 33899 694 12 as as IN 33899 694 13 the the DT 33899 694 14 trouble trouble NN 33899 694 15 from from IN 33899 694 16 spherical spherical JJ 33899 694 17 aberration aberration NN 33899 694 18 is be VBZ 33899 694 19 much much RB 33899 694 20 less less RBR 33899 694 21 apparent apparent JJ 33899 694 22 with with IN 33899 694 23 lenses lense NNS 33899 694 24 of of IN 33899 694 25 long long JJ 33899 694 26 focus focus NN 33899 694 27 than than IN 33899 694 28 with with IN 33899 694 29 short short JJ 33899 694 30 , , , 33899 694 31 and and CC 33899 694 32 the the DT 33899 694 33 difference difference NN 33899 694 34 in in IN 33899 694 35 expense expense NN 33899 694 36 is be VBZ 33899 694 37 much much RB 33899 694 38 more more JJR 33899 694 39 in in IN 33899 694 40 the the DT 33899 694 41 former former JJ 33899 694 42 case case NN 33899 694 43 than than IN 33899 694 44 in in IN 33899 694 45 the the DT 33899 694 46 latter latter NN 33899 694 47 . . . 33899 695 1 For for IN 33899 695 2 short short JJ 33899 695 3 focus focus NN 33899 695 4 lenses lense NNS 33899 695 5 , , , 33899 695 6 however however RB 33899 695 7 , , , 33899 695 8 as as IN 33899 695 9 used use VBN 33899 695 10 in in IN 33899 695 11 moderate moderate JJ 33899 695 12 - - HYPH 33899 695 13 sized sized JJ 33899 695 14 halls hall NNS 33899 695 15 , , , 33899 695 16 they -PRON- PRP 33899 695 17 are be VBP 33899 695 18 not not RB 33899 695 19 good good JJ 33899 695 20 enough enough RB 33899 695 21 , , , 33899 695 22 and and CC 33899 695 23 the the DT 33899 695 24 type type NN 33899 695 25 of of IN 33899 695 26 lens lens NN 33899 695 27 almost almost RB 33899 695 28 universally universally RB 33899 695 29 employed employ VBN 33899 695 30 is be VBZ 33899 695 31 that that DT 33899 695 32 known know VBN 33899 695 33 as as IN 33899 695 34 the the DT 33899 695 35 ' ' `` 33899 695 36 Petzval Petzval NNP 33899 695 37 ' ' '' 33899 695 38 combination combination NN 33899 695 39 ( ( -LRB- 33899 695 40 Fig fig NN 33899 695 41 . . . 33899 696 1 41 41 CD 33899 696 2 ) ) -RRB- 33899 696 3 . . . 33899 697 1 [ [ -LRB- 33899 697 2 Illustration illustration NN 33899 697 3 : : : 33899 697 4 FIG FIG NNP 33899 697 5 . . . 33899 698 1 41.--Petzval 41.--petzval CD 33899 698 2 Combination Combination NNP 33899 698 3 . . . 33899 698 4 ] ] -RRB- 33899 699 1 This this DT 33899 699 2 lens lens NN 33899 699 3 really really RB 33899 699 4 consists consist VBZ 33899 699 5 of of IN 33899 699 6 two two CD 33899 699 7 achromatic achromatic JJ 33899 699 8 combinations combination NNS 33899 699 9 , , , 33899 699 10 the the DT 33899 699 11 pair pair NN 33899 699 12 at at IN 33899 699 13 the the DT 33899 699 14 front front NN 33899 699 15 being be VBG 33899 699 16 cemented cement VBN 33899 699 17 together together RB 33899 699 18 , , , 33899 699 19 and and CC 33899 699 20 that that IN 33899 699 21 at at IN 33899 699 22 the the DT 33899 699 23 rear rear NN 33899 699 24 having have VBG 33899 699 25 an an DT 33899 699 26 air air NN 33899 699 27 space space NN 33899 699 28 between between IN 33899 699 29 . . . 33899 700 1 The the DT 33899 700 2 combination combination NN 33899 700 3 is be VBZ 33899 700 4 so so RB 33899 700 5 designed design VBN 33899 700 6 that that IN 33899 700 7 the the DT 33899 700 8 spherical spherical JJ 33899 700 9 aberration aberration NN 33899 700 10 of of IN 33899 700 11 the the DT 33899 700 12 one one CD 33899 700 13 pair pair NN 33899 700 14 neutralises neutralise VBZ 33899 700 15 that that DT 33899 700 16 of of IN 33899 700 17 the the DT 33899 700 18 other other JJ 33899 700 19 , , , 33899 700 20 and and CC 33899 700 21 the the DT 33899 700 22 result result NN 33899 700 23 is be VBZ 33899 700 24 or or CC 33899 700 25 should should MD 33899 700 26 be be VB 33899 700 27 a a DT 33899 700 28 lens lens NN 33899 700 29 corrected correct VBN 33899 700 30 both both DT 33899 700 31 for for IN 33899 700 32 chromatic chromatic JJ 33899 700 33 and and CC 33899 700 34 spherical spherical JJ 33899 700 35 aberration aberration NN 33899 700 36 . . . 33899 701 1 These these DT 33899 701 2 lenses lense NNS 33899 701 3 , , , 33899 701 4 however however RB 33899 701 5 , , , 33899 701 6 vary vary VBP 33899 701 7 very very RB 33899 701 8 much much RB 33899 701 9 in in IN 33899 701 10 the the DT 33899 701 11 perfection perfection NN 33899 701 12 of of IN 33899 701 13 their -PRON- PRP$ 33899 701 14 results result NNS 33899 701 15 , , , 33899 701 16 and and CC 33899 701 17 as as IN 33899 701 18 they -PRON- PRP 33899 701 19 are be VBP 33899 701 20 at at IN 33899 701 21 present present NN 33899 701 22 usually usually RB 33899 701 23 imported import VBN 33899 701 24 in in IN 33899 701 25 bulk bulk NN 33899 701 26 from from IN 33899 701 27 France France NNP 33899 701 28 , , , 33899 701 29 the the DT 33899 701 30 customer customer NN 33899 701 31 does do VBZ 33899 701 32 well well RB 33899 701 33 to to TO 33899 701 34 insist insist VB 33899 701 35 upon upon IN 33899 701 36 a a DT 33899 701 37 demonstration demonstration NN 33899 701 38 of of IN 33899 701 39 his -PRON- PRP$ 33899 701 40 own own JJ 33899 701 41 particular particular JJ 33899 701 42 lantern lantern NN 33899 701 43 before before IN 33899 701 44 acceptance acceptance NN 33899 701 45 . . . 33899 702 1 The the DT 33899 702 2 magnifying magnify VBG 33899 702 3 power power NN 33899 702 4 of of IN 33899 702 5 a a DT 33899 702 6 lens lens NN 33899 702 7 depends depend VBZ 33899 702 8 upon upon IN 33899 702 9 its -PRON- PRP$ 33899 702 10 ' ' `` 33899 702 11 focus focus NN 33899 702 12 ' ' '' 33899 702 13 multiplied multiply VBN 33899 702 14 by by IN 33899 702 15 its -PRON- PRP$ 33899 702 16 distance distance NN 33899 702 17 from from IN 33899 702 18 the the DT 33899 702 19 screen screen NN 33899 702 20 , , , 33899 702 21 and and CC 33899 702 22 the the DT 33899 702 23 focus focus NN 33899 702 24 in in IN 33899 702 25 the the DT 33899 702 26 case case NN 33899 702 27 of of IN 33899 702 28 a a DT 33899 702 29 simple simple JJ 33899 702 30 lens lens NN 33899 702 31 is be VBZ 33899 702 32 easily easily RB 33899 702 33 determined determine VBN 33899 702 34 by by IN 33899 702 35 the the DT 33899 702 36 familiar familiar JJ 33899 702 37 ' ' `` 33899 702 38 burning burn VBG 33899 702 39 - - HYPH 33899 702 40 glass glass NN 33899 702 41 ' ' '' 33899 702 42 experiment experiment NN 33899 702 43 , , , 33899 702 44 that that RB 33899 702 45 is be VBZ 33899 702 46 by by IN 33899 702 47 focussing focusse VBG 33899 702 48 an an DT 33899 702 49 image image NN 33899 702 50 of of IN 33899 702 51 the the DT 33899 702 52 sun sun NN 33899 702 53 upon upon IN 33899 702 54 a a DT 33899 702 55 piece piece NN 33899 702 56 of of IN 33899 702 57 paper paper NN 33899 702 58 and and CC 33899 702 59 measuring measure VBG 33899 702 60 accurately accurately RB 33899 702 61 { { -LRB- 33899 702 62 67 67 CD 33899 702 63 } } -RRB- 33899 702 64 the the DT 33899 702 65 distance distance NN 33899 702 66 the the DT 33899 702 67 lens lens NN 33899 702 68 must must MD 33899 702 69 be be VB 33899 702 70 away away RB 33899 702 71 to to TO 33899 702 72 produce produce VB 33899 702 73 the the DT 33899 702 74 most most RBS 33899 702 75 concentrated concentrated JJ 33899 702 76 spot spot NN 33899 702 77 . . . 33899 703 1 In in IN 33899 703 2 practice practice NN 33899 703 3 it -PRON- PRP 33899 703 4 is be VBZ 33899 703 5 sufficiently sufficiently RB 33899 703 6 accurate accurate JJ 33899 703 7 to to TO 33899 703 8 focus focus VB 33899 703 9 a a DT 33899 703 10 distant distant JJ 33899 703 11 window window NN 33899 703 12 , , , 33899 703 13 or or CC 33899 703 14 other other JJ 33899 703 15 luminous luminous JJ 33899 703 16 object object NN 33899 703 17 , , , 33899 703 18 upon upon IN 33899 703 19 the the DT 33899 703 20 paper paper NN 33899 703 21 , , , 33899 703 22 any any DT 33899 703 23 error error NN 33899 703 24 obtained obtain VBN 33899 703 25 by by IN 33899 703 26 this this DT 33899 703 27 method method NN 33899 703 28 being be VBG 33899 703 29 for for IN 33899 703 30 ordinary ordinary JJ 33899 703 31 purposes purpose NNS 33899 703 32 a a DT 33899 703 33 negligible negligible JJ 33899 703 34 one one NN 33899 703 35 . . . 33899 704 1 With with IN 33899 704 2 a a DT 33899 704 3 compound compound NN 33899 704 4 lens lens NN 33899 704 5 , , , 33899 704 6 such such JJ 33899 704 7 as as IN 33899 704 8 a a DT 33899 704 9 ' ' `` 33899 704 10 Petzval Petzval NNP 33899 704 11 ' ' '' 33899 704 12 combination combination NN 33899 704 13 , , , 33899 704 14 this this DT 33899 704 15 method method NN 33899 704 16 does do VBZ 33899 704 17 not not RB 33899 704 18 hold hold VB 33899 704 19 good good JJ 33899 704 20 , , , 33899 704 21 as as IN 33899 704 22 the the DT 33899 704 23 optical optical JJ 33899 704 24 centre centre NN 33899 704 25 of of IN 33899 704 26 such such PDT 33899 704 27 a a DT 33899 704 28 lens lens NN 33899 704 29 is be VBZ 33899 704 30 not not RB 33899 704 31 necessarily necessarily RB 33899 704 32 midway midway JJ 33899 704 33 between between IN 33899 704 34 its -PRON- PRP$ 33899 704 35 two two CD 33899 704 36 components component NNS 33899 704 37 . . . 33899 705 1 The the DT 33899 705 2 actual actual JJ 33899 705 3 focus focus NN 33899 705 4 can can MD 33899 705 5 be be VB 33899 705 6 got get VBN 33899 705 7 pretty pretty RB 33899 705 8 approximately approximately RB 33899 705 9 by by IN 33899 705 10 focussing focusse VBG 33899 705 11 a a DT 33899 705 12 window window NN 33899 705 13 or or CC 33899 705 14 other other JJ 33899 705 15 object object NN 33899 705 16 as as IN 33899 705 17 before before RB 33899 705 18 and and CC 33899 705 19 measuring measure VBG 33899 705 20 the the DT 33899 705 21 distance distance NN 33899 705 22 from from IN 33899 705 23 one one CD 33899 705 24 definite definite JJ 33899 705 25 point point NN 33899 705 26 ( ( -LRB- 33899 705 27 say say VB 33899 705 28 the the DT 33899 705 29 front front JJ 33899 705 30 edge edge NN 33899 705 31 of of IN 33899 705 32 one one CD 33899 705 33 of of IN 33899 705 34 the the DT 33899 705 35 lens lens NN 33899 705 36 cells cell NNS 33899 705 37 ) ) -RRB- 33899 705 38 to to IN 33899 705 39 the the DT 33899 705 40 paper paper NN 33899 705 41 , , , 33899 705 42 then then RB 33899 705 43 turning turn VBG 33899 705 44 it -PRON- PRP 33899 705 45 round round RB 33899 705 46 and and CC 33899 705 47 taking take VBG 33899 705 48 a a DT 33899 705 49 second second JJ 33899 705 50 measurement measurement NN 33899 705 51 from from IN 33899 705 52 the the DT 33899 705 53 _ _ NNP 33899 705 54 same same JJ 33899 705 55 _ _ NNP 33899 705 56 point point NN 33899 705 57 , , , 33899 705 58 the the DT 33899 705 59 mean mean NN 33899 705 60 between between IN 33899 705 61 the the DT 33899 705 62 two two CD 33899 705 63 measurements measurement NNS 33899 705 64 giving give VBG 33899 705 65 the the DT 33899 705 66 actual actual JJ 33899 705 67 focus focus NN 33899 705 68 . . . 33899 706 1 In in IN 33899 706 2 practice practice NN 33899 706 3 the the DT 33899 706 4 ' ' `` 33899 706 5 simple simple JJ 33899 706 6 equivalent equivalent JJ 33899 706 7 focus focus NN 33899 706 8 , , , 33899 706 9 ' ' '' 33899 706 10 as as IN 33899 706 11 it -PRON- PRP 33899 706 12 is be VBZ 33899 706 13 termed term VBN 33899 706 14 , , , 33899 706 15 of of IN 33899 706 16 a a DT 33899 706 17 lantern lantern JJ 33899 706 18 lens lens NN 33899 706 19 is be VBZ 33899 706 20 usually usually RB 33899 706 21 determined determine VBN 33899 706 22 by by IN 33899 706 23 measuring measure VBG 33899 706 24 the the DT 33899 706 25 magnification magnification NN 33899 706 26 of of IN 33899 706 27 the the DT 33899 706 28 image image NN 33899 706 29 thrown throw VBN 33899 706 30 upon upon IN 33899 706 31 the the DT 33899 706 32 screen screen NN 33899 706 33 , , , 33899 706 34 when when WRB 33899 706 35 , , , 33899 706 36 by by IN 33899 706 37 knowing know VBG 33899 706 38 the the DT 33899 706 39 original original JJ 33899 706 40 size size NN 33899 706 41 of of IN 33899 706 42 the the DT 33899 706 43 slide slide NN 33899 706 44 ( ( -LRB- 33899 706 45 a a DT 33899 706 46 ' ' `` 33899 706 47 standard standard NN 33899 706 48 ' ' '' 33899 706 49 slide slide NN 33899 706 50 of of IN 33899 706 51 3 3 CD 33899 706 52 inches inches NNP 33899 706 53 diameter diameter NNP 33899 706 54 is be VBZ 33899 706 55 usually usually RB 33899 706 56 taken take VBN 33899 706 57 ) ) -RRB- 33899 706 58 and and CC 33899 706 59 the the DT 33899 706 60 distance distance NN 33899 706 61 between between IN 33899 706 62 lantern lantern JJ 33899 706 63 and and CC 33899 706 64 screen screen NN 33899 706 65 , , , 33899 706 66 we -PRON- PRP 33899 706 67 get get VBP 33899 706 68 the the DT 33899 706 69 focus focus NN 33899 706 70 from from IN 33899 706 71 the the DT 33899 706 72 following follow VBG 33899 706 73 very very RB 33899 706 74 simple simple JJ 33899 706 75 equation equation NN 33899 706 76 : : : 33899 706 77 Diameter diameter NN 33899 706 78 of of IN 33899 706 79 picture picture NN 33899 706 80 on on IN 33899 706 81 screen screen NN 33899 706 82 Distance Distance NNP 33899 706 83 between between IN 33899 706 84 lens lens NN 33899 706 85 and and CC 33899 706 86 screen screen NN 33899 706 87 ( ( -LRB- 33899 706 88 in in IN 33899 706 89 feet foot NNS 33899 706 90 ) ) -RRB- 33899 706 91 ( ( -LRB- 33899 706 92 in in IN 33899 706 93 feet foot NNS 33899 706 94 ) ) -RRB- 33899 706 95 ----------------------------- ----------------------------- NFP 33899 706 96 = = NFP 33899 706 97 --------------------------------- --------------------------------- NFP 33899 706 98 Diameter diameter NN 33899 706 99 of of IN 33899 706 100 slide slide NN 33899 706 101 ( ( -LRB- 33899 706 102 in in IN 33899 706 103 inches inch NNS 33899 706 104 ) ) -RRB- 33899 706 105 Focus Focus NNP 33899 706 106 of of IN 33899 706 107 lens lens NN 33899 706 108 ( ( -LRB- 33899 706 109 in in IN 33899 706 110 inches inch NNS 33899 706 111 ) ) -RRB- 33899 706 112 or or CC 33899 706 113 perhaps perhaps RB 33899 706 114 more more RBR 33899 706 115 simply simply RB 33899 706 116 still still RB 33899 706 117 : : : 33899 706 118 Distance distance NN 33899 706 119 between between IN 33899 706 120 lens lens NN 33899 706 121 × × VBZ 33899 706 122 Diameter diameter NN 33899 706 123 of of IN 33899 706 124 slide slide NN 33899 706 125 and and CC 33899 706 126 screen screen NN 33899 706 127 ( ( -LRB- 33899 706 128 in in IN 33899 706 129 feet foot NNS 33899 706 130 ) ) -RRB- 33899 706 131 ( ( -LRB- 33899 706 132 in in IN 33899 706 133 inches inch NNS 33899 706 134 ) ) -RRB- 33899 706 135 ------------------------------------------ ------------------------------------------ NFP 33899 706 136 = = NFP 33899 706 137 Focus focus NN 33899 706 138 of of IN 33899 706 139 lens lens NN 33899 706 140 in in IN 33899 706 141 inches inch NNS 33899 706 142 ; ; : 33899 706 143 Diameter diameter NN 33899 706 144 of of IN 33899 706 145 picture picture NN 33899 706 146 ( ( -LRB- 33899 706 147 in in IN 33899 706 148 feet foot NNS 33899 706 149 ) ) -RRB- 33899 706 150 or or CC 33899 706 151 , , , 33899 706 152 if if IN 33899 706 153 we -PRON- PRP 33899 706 154 know know VBP 33899 706 155 the the DT 33899 706 156 focus focus NN 33899 706 157 of of IN 33899 706 158 the the DT 33899 706 159 lens lens NN 33899 706 160 but but CC 33899 706 161 want want VBP 33899 706 162 to to TO 33899 706 163 know know VB 33899 706 164 how how WRB 33899 706 165 far far RB 33899 706 166 from from IN 33899 706 167 the the DT 33899 706 168 screen screen NN 33899 706 169 we -PRON- PRP 33899 706 170 must must MD 33899 706 171 go go VB 33899 706 172 to to TO 33899 706 173 produce produce VB 33899 706 174 a a DT 33899 706 175 given give VBN 33899 706 176 - - HYPH 33899 706 177 sized sized JJ 33899 706 178 picture picture NN 33899 706 179 , , , 33899 706 180 the the DT 33899 706 181 formula formula NN 33899 706 182 will will MD 33899 706 183 be be VB 33899 706 184 : : : 33899 706 185 { { -LRB- 33899 706 186 68 68 CD 33899 706 187 } } -RRB- 33899 706 188 Diameter Diameter NNP 33899 706 189 of of IN 33899 706 190 picture picture NN 33899 706 191 × × NN 33899 706 192 Focus focus NN 33899 706 193 of of IN 33899 706 194 lens lens NN 33899 706 195 ( ( -LRB- 33899 706 196 in in IN 33899 706 197 feet foot NNS 33899 706 198 ) ) -RRB- 33899 706 199 ( ( -LRB- 33899 706 200 in in IN 33899 706 201 inches inch NNS 33899 706 202 ) ) -RRB- 33899 706 203 ------------------------------------ ------------------------------------ NFP 33899 706 204 = = NFP 33899 706 205 Distance Distance NNP 33899 706 206 required require VBD 33899 706 207 ( ( -LRB- 33899 706 208 in in IN 33899 706 209 feet foot NNS 33899 706 210 ) ) -RRB- 33899 706 211 . . . 33899 707 1 Diameter diameter NN 33899 707 2 of of IN 33899 707 3 slide slide NN 33899 707 4 ( ( -LRB- 33899 707 5 in in IN 33899 707 6 inches inch NNS 33899 707 7 ) ) -RRB- 33899 707 8 It -PRON- PRP 33899 707 9 is be VBZ 33899 707 10 handy handy JJ 33899 707 11 for for IN 33899 707 12 the the DT 33899 707 13 lanternist lanternist NN 33899 707 14 to to TO 33899 707 15 remember remember VB 33899 707 16 that that IN 33899 707 17 , , , 33899 707 18 dealing deal VBG 33899 707 19 with with IN 33899 707 20 a a DT 33899 707 21 standard standard JJ 33899 707 22 3-inch 3-inch CD 33899 707 23 slide slide NN 33899 707 24 , , , 33899 707 25 a a DT 33899 707 26 6-inch 6-inch CD 33899 707 27 lens lens NN 33899 707 28 will will MD 33899 707 29 _ _ NNP 33899 707 30 always always RB 33899 707 31 _ _ NNP 33899 707 32 give give VB 33899 707 33 a a DT 33899 707 34 picture picture NN 33899 707 35 whose whose WP$ 33899 707 36 diameter diameter NN 33899 707 37 is be VBZ 33899 707 38 _ _ NNP 33899 707 39 one one CD 33899 707 40 - - HYPH 33899 707 41 half half NN 33899 707 42 _ _ IN 33899 707 43 the the DT 33899 707 44 distance distance NN 33899 707 45 from from IN 33899 707 46 lens lens NN 33899 707 47 to to IN 33899 707 48 screen screen NN 33899 707 49 , , , 33899 707 50 a a DT 33899 707 51 12-inch 12-inch CD 33899 707 52 lens lens NN 33899 707 53 half half PDT 33899 707 54 this this DT 33899 707 55 again again RB 33899 707 56 or or CC 33899 707 57 _ _ NNP 33899 707 58 one one CD 33899 707 59 - - HYPH 33899 707 60 quarter quarter NN 33899 707 61 _ _ NNP 33899 707 62 , , , 33899 707 63 and and CC 33899 707 64 a a DT 33899 707 65 9-inch 9-inch CD 33899 707 66 lens lens NN 33899 707 67 half half JJ 33899 707 68 - - HYPH 33899 707 69 way way NN 33899 707 70 between between IN 33899 707 71 the the DT 33899 707 72 two two CD 33899 707 73 . . . 33899 708 1 Bearing bear VBG 33899 708 2 these these DT 33899 708 3 simple simple JJ 33899 708 4 figures figure NNS 33899 708 5 in in IN 33899 708 6 mind mind NN 33899 708 7 , , , 33899 708 8 the the DT 33899 708 9 approximate approximate JJ 33899 708 10 distance distance NN 33899 708 11 can can MD 33899 708 12 usually usually RB 33899 708 13 be be VB 33899 708 14 _ _ NNP 33899 708 15 guessed guess VBN 33899 708 16 _ _ NNP 33899 708 17 sufficiently sufficiently RB 33899 708 18 near near RB 33899 708 19 for for IN 33899 708 20 the the DT 33899 708 21 first first JJ 33899 708 22 trial trial NN 33899 708 23 , , , 33899 708 24 and and CC 33899 708 25 then then RB 33899 708 26 the the DT 33899 708 27 lantern lantern NNP 33899 708 28 shifted shift VBD 33899 708 29 a a DT 33899 708 30 little little JJ 33899 708 31 nearer nearer NN 33899 708 32 or or CC 33899 708 33 the the DT 33899 708 34 reverse reverse NN 33899 708 35 as as IN 33899 708 36 required require VBN 33899 708 37 . . . 33899 709 1 The the DT 33899 709 2 following follow VBG 33899 709 3 table table NN 33899 709 4 may may MD 33899 709 5 , , , 33899 709 6 however however RB 33899 709 7 , , , 33899 709 8 be be VB 33899 709 9 useful useful JJ 33899 709 10 , , , 33899 709 11 as as IN 33899 709 12 showing show VBG 33899 709 13 readily readily RB 33899 709 14 the the DT 33899 709 15 magnification magnification NN 33899 709 16 produced produce VBN 33899 709 17 at at IN 33899 709 18 different different JJ 33899 709 19 distances distance NNS 33899 709 20 by by IN 33899 709 21 lenses lense NNS 33899 709 22 of of IN 33899 709 23 given give VBN 33899 709 24 foci foci NN 33899 709 25 : : : 33899 709 26 + + CC 33899 709 27 ------+---------+--------+--------+--------+--------+--------+--------+ ------+---------+--------+--------+--------+--------+--------+--------+ NFP 33899 709 28 | | NNP 33899 709 29 Disc Disc NNP 33899 709 30 | | NNP 33899 709 31 Focus Focus NNP 33899 709 32 | | NNP 33899 709 33 Focus Focus NNP 33899 709 34 | | NNP 33899 709 35 Focus Focus NNP 33899 709 36 | | NNP 33899 709 37 Focus Focus NNP 33899 709 38 | | NNP 33899 709 39 Focus Focus NNP 33899 709 40 | | NNP 33899 709 41 Focus Focus NNP 33899 709 42 | | NNP 33899 709 43 Focus Focus NNP 33899 709 44 | | NNP 33899 709 45 |wanted| |wanted| NNP 33899 709 46 4½ 4½ NN 33899 709 47 in in IN 33899 709 48 . . . 33899 710 1 | | NNP 33899 710 2 6 6 CD 33899 710 3 in in RB 33899 710 4 . . . 33899 711 1 | | NNP 33899 711 2 8 8 CD 33899 711 3 in in IN 33899 711 4 . . . 33899 712 1 | | CD 33899 712 2 10 10 CD 33899 712 3 in.| in.| CD 33899 712 4 12 12 CD 33899 712 5 in.| in.| CD 33899 712 6 15 15 CD 33899 712 7 in.| in.| CD 33899 712 8 18 18 CD 33899 712 9 in.| in.| CD 33899 712 10 + + SYM 33899 712 11 ------+---------+--------+--------+--------+--------+--------+--------+ ------+---------+--------+--------+--------+--------+--------+--------+ NN 33899 712 12 | | NNP 33899 712 13 feet.| feet.| NNP 33899 712 14 ft ft NNP 33899 712 15 . . . 33899 712 16 in in IN 33899 712 17 . . . 33899 713 1 | | NNS 33899 713 2 ft ft NNP 33899 713 3 . . . 33899 713 4 in.| in.| CD 33899 713 5 ft ft UH 33899 713 6 . . . 33899 713 7 in.| in.| CD 33899 713 8 ft ft UH 33899 713 9 . . . 33899 713 10 in.| in.| CD 33899 713 11 ft ft UH 33899 713 12 . . . 33899 713 13 in.| in.| CD 33899 713 14 ft ft UH 33899 713 15 . . . 33899 713 16 in.| in.| CD 33899 713 17 ft ft NN 33899 713 18 . . . 33899 713 19 in.| in.| NNP 33899 713 20 | | CD 33899 713 21 9 9 CD 33899 713 22 | | CD 33899 713 23 13 13 CD 33899 713 24 6 6 CD 33899 713 25 | | CD 33899 713 26 18 18 CD 33899 713 27 0 0 CD 33899 713 28 | | CD 33899 713 29 24 24 CD 33899 713 30 0 0 CD 33899 713 31 | | CD 33899 713 32 30 30 CD 33899 713 33 0 0 CD 33899 713 34 | | CD 33899 713 35 36 36 CD 33899 713 36 0 0 CD 33899 713 37 | | CD 33899 713 38 45 45 CD 33899 713 39 0 0 CD 33899 713 40 | | CD 33899 713 41 54 54 CD 33899 713 42 0 0 CD 33899 713 43 | | CD 33899 713 44 | | CD 33899 713 45 12 12 CD 33899 713 46 | | CD 33899 713 47 18 18 CD 33899 713 48 0 0 CD 33899 713 49 | | CD 33899 713 50 24 24 CD 33899 713 51 0 0 CD 33899 713 52 | | CD 33899 713 53 32 32 CD 33899 713 54 0 0 CD 33899 713 55 | | CD 33899 713 56 40 40 CD 33899 713 57 0 0 CD 33899 713 58 | | CD 33899 713 59 48 48 CD 33899 713 60 0 0 CD 33899 713 61 | | CD 33899 713 62 60 60 CD 33899 713 63 0 0 CD 33899 713 64 | | CD 33899 713 65 72 72 CD 33899 713 66 0 0 CD 33899 713 67 | | CD 33899 713 68 | | CD 33899 713 69 15 15 CD 33899 713 70 | | CD 33899 713 71 22 22 CD 33899 713 72 6 6 CD 33899 713 73 | | CD 33899 713 74 30 30 CD 33899 713 75 0 0 CD 33899 713 76 | | CD 33899 713 77 40 40 CD 33899 713 78 0 0 CD 33899 713 79 | | CD 33899 713 80 50 50 CD 33899 713 81 0 0 CD 33899 713 82 | | CD 33899 713 83 60 60 CD 33899 713 84 0 0 CD 33899 713 85 | | CD 33899 713 86 75 75 CD 33899 713 87 0 0 CD 33899 713 88 | | CD 33899 713 89 90 90 CD 33899 713 90 0 0 CD 33899 713 91 | | CD 33899 713 92 | | CD 33899 713 93 18 18 CD 33899 713 94 | | CD 33899 713 95 27 27 CD 33899 713 96 0 0 CD 33899 713 97 | | CD 33899 713 98 36 36 CD 33899 713 99 0 0 CD 33899 713 100 | | CD 33899 713 101 48 48 CD 33899 713 102 0 0 CD 33899 713 103 | | CD 33899 713 104 60 60 CD 33899 713 105 0 0 CD 33899 713 106 | | CD 33899 713 107 72 72 CD 33899 713 108 0 0 CD 33899 713 109 | | CD 33899 713 110 90 90 CD 33899 713 111 0 0 CD 33899 713 112 |108 |108 CD 33899 713 113 0 0 CD 33899 713 114 | | CD 33899 713 115 | | CD 33899 713 116 20 20 CD 33899 713 117 | | CD 33899 713 118 30 30 CD 33899 713 119 0 0 CD 33899 713 120 | | CD 33899 713 121 40 40 CD 33899 713 122 0 0 CD 33899 713 123 | | CD 33899 713 124 53 53 CD 33899 713 125 4 4 CD 33899 713 126 | | CD 33899 713 127 66 66 CD 33899 713 128 8 8 CD 33899 713 129 | | CD 33899 713 130 80 80 CD 33899 713 131 0 0 CD 33899 713 132 |100 |100 CD 33899 713 133 0 0 CD 33899 713 134 |120 |120 CD 33899 713 135 0 0 CD 33899 713 136 | | CD 33899 713 137 | | CD 33899 713 138 25 25 CD 33899 713 139 | | CD 33899 713 140 37 37 CD 33899 713 141 6 6 CD 33899 713 142 | | CD 33899 713 143 50 50 CD 33899 713 144 0 0 CD 33899 713 145 | | CD 33899 713 146 66 66 CD 33899 713 147 8 8 CD 33899 713 148 | | CD 33899 713 149 83 83 CD 33899 713 150 4 4 CD 33899 713 151 |100 |100 CD 33899 713 152 0 0 CD 33899 713 153 |125 |125 NN 33899 713 154 0 0 CD 33899 713 155 |150 |150 CD 33899 713 156 0 0 CD 33899 713 157 | | CD 33899 713 158 | | CD 33899 713 159 30 30 CD 33899 713 160 | | CD 33899 713 161 45 45 CD 33899 713 162 0 0 CD 33899 713 163 | | CD 33899 713 164 60 60 CD 33899 713 165 0 0 CD 33899 713 166 | | CD 33899 713 167 80 80 CD 33899 713 168 0 0 CD 33899 713 169 |100 |100 CD 33899 713 170 0 0 CD 33899 713 171 |120 |120 CD 33899 713 172 0 0 CD 33899 713 173 |150 |150 NN 33899 713 174 0 0 CD 33899 713 175 |180 |180 JJ 33899 713 176 0 0 CD 33899 713 177 | | CD 33899 713 178 + + SYM 33899 713 179 ------+---------+--------+--------+--------+--------+--------+--------+ ------+---------+--------+--------+--------+--------+--------+--------+ NFP 33899 713 180 THE the DT 33899 713 181 DIAMETER DIAMETER NNP 33899 713 182 OF of IN 33899 713 183 THE the DT 33899 713 184 OBJECTIVE.--The objective.--the JJ 33899 713 185 diameter diameter NN 33899 713 186 of of IN 33899 713 187 the the DT 33899 713 188 objective objective NN 33899 713 189 must must MD 33899 713 190 depend depend VB 33899 713 191 to to IN 33899 713 192 a a DT 33899 713 193 certain certain JJ 33899 713 194 extent extent NN 33899 713 195 upon upon IN 33899 713 196 its -PRON- PRP$ 33899 713 197 focus focus NN 33899 713 198 in in IN 33899 713 199 the the DT 33899 713 200 case case NN 33899 713 201 of of IN 33899 713 202 a a DT 33899 713 203 double double JJ 33899 713 204 combination combination NN 33899 713 205 such such JJ 33899 713 206 as as IN 33899 713 207 a a DT 33899 713 208 Petzval Petzval NNP 33899 713 209 . . . 33899 714 1 These these DT 33899 714 2 lenses lense NNS 33899 714 3 consist consist VBP 33899 714 4 , , , 33899 714 5 as as IN 33899 714 6 has have VBZ 33899 714 7 already already RB 33899 714 8 been be VBN 33899 714 9 said say VBN 33899 714 10 , , , 33899 714 11 of of IN 33899 714 12 two two CD 33899 714 13 achromatic achromatic JJ 33899 714 14 components component NNS 33899 714 15 some some DT 33899 714 16 distance distance NN 33899 714 17 apart apart RB 33899 714 18 , , , 33899 714 19 and and CC 33899 714 20 for for IN 33899 714 21 technical technical JJ 33899 714 22 considerations consideration NNS 33899 714 23 , , , 33899 714 24 which which WDT 33899 714 25 need nee MD 33899 714 26 not not RB 33899 714 27 be be VB 33899 714 28 discussed discuss VBN 33899 714 29 here here RB 33899 714 30 , , , 33899 714 31 the the DT 33899 714 32 _ _ NNP 33899 714 33 distance distance NN 33899 714 34 _ _ NNP 33899 714 35 between between IN 33899 714 36 these these DT 33899 714 37 components component NNS 33899 714 38 is be VBZ 33899 714 39 usually usually RB 33899 714 40 about about RB 33899 714 41 two two CD 33899 714 42 - - HYPH 33899 714 43 thirds third NNS 33899 714 44 of of IN 33899 714 45 the the DT 33899 714 46 focal focal JJ 33899 714 47 length length NN 33899 714 48 . . . 33899 715 1 This this DT 33899 715 2 is be VBZ 33899 715 3 not not RB 33899 715 4 a a DT 33899 715 5 universal universal JJ 33899 715 6 rule rule NN 33899 715 7 , , , 33899 715 8 as as IN 33899 715 9 the the DT 33899 715 10 lenses lense NNS 33899 715 11 of of IN 33899 715 12 different different JJ 33899 715 13 makers maker NNS 33899 715 14 vary vary VBP 33899 715 15 a a DT 33899 715 16 good good JJ 33899 715 17 deal deal NN 33899 715 18 ; ; : 33899 715 19 but but CC 33899 715 20 it -PRON- PRP 33899 715 21 is be VBZ 33899 715 22 generally generally RB 33899 715 23 a a DT 33899 715 24 fact fact NN 33899 715 25 { { -LRB- 33899 715 26 69 69 CD 33899 715 27 } } -RRB- 33899 715 28 that that IN 33899 715 29 the the DT 33899 715 30 longer long JJR 33899 715 31 the the DT 33899 715 32 focus focus NN 33899 715 33 of of IN 33899 715 34 the the DT 33899 715 35 lens lens NN 33899 715 36 the the DT 33899 715 37 greater great JJR 33899 715 38 is be VBZ 33899 715 39 usually usually RB 33899 715 40 the the DT 33899 715 41 separation separation NN 33899 715 42 between between IN 33899 715 43 the the DT 33899 715 44 two two CD 33899 715 45 lens lens NN 33899 715 46 systems system NNS 33899 715 47 . . . 33899 716 1 The the DT 33899 716 2 entire entire JJ 33899 716 3 lens lens NN 33899 716 4 therefore therefore RB 33899 716 5 mounted mount VBD 33899 716 6 in in IN 33899 716 7 its -PRON- PRP$ 33899 716 8 tube tube NN 33899 716 9 resembles resemble VBZ 33899 716 10 a a DT 33899 716 11 _ _ NNP 33899 716 12 tunnel tunnel NN 33899 716 13 _ _ NNP 33899 716 14 of of IN 33899 716 15 varying varying NN 33899 716 16 length length NN 33899 716 17 according accord VBG 33899 716 18 to to IN 33899 716 19 its -PRON- PRP$ 33899 716 20 focus focus NN 33899 716 21 , , , 33899 716 22 and and CC 33899 716 23 through through IN 33899 716 24 this this DT 33899 716 25 tunnel tunnel NN 33899 716 26 a a DT 33899 716 27 _ _ NNP 33899 716 28 cone cone NN 33899 716 29 _ _ NNP 33899 716 30 of of IN 33899 716 31 light light JJ 33899 716 32 rays ray NNS 33899 716 33 have have VBP 33899 716 34 to to TO 33899 716 35 be be VB 33899 716 36 passed pass VBN 33899 716 37 . . . 33899 717 1 It -PRON- PRP 33899 717 2 is be VBZ 33899 717 3 plain plain JJ 33899 717 4 , , , 33899 717 5 therefore therefore RB 33899 717 6 , , , 33899 717 7 that that IN 33899 717 8 a a DT 33899 717 9 lens lens NN 33899 717 10 of of IN 33899 717 11 long long JJ 33899 717 12 focus focus NN 33899 717 13 , , , 33899 717 14 which which WDT 33899 717 15 in in IN 33899 717 16 practice practice NN 33899 717 17 means mean VBZ 33899 717 18 a a DT 33899 717 19 long long JJ 33899 717 20 tube tube NN 33899 717 21 length length NN 33899 717 22 , , , 33899 717 23 must must MD 33899 717 24 be be VB 33899 717 25 made make VBN 33899 717 26 also also RB 33899 717 27 of of IN 33899 717 28 large large JJ 33899 717 29 diameter diameter NN 33899 717 30 , , , 33899 717 31 or or CC 33899 717 32 a a DT 33899 717 33 portion portion NN 33899 717 34 of of IN 33899 717 35 the the DT 33899 717 36 cone cone NN 33899 717 37 will will MD 33899 717 38 be be VB 33899 717 39 cut cut VBN 33899 717 40 off off RP 33899 717 41 , , , 33899 717 42 with with IN 33899 717 43 a a DT 33899 717 44 consequent consequent JJ 33899 717 45 loss loss NN 33899 717 46 of of IN 33899 717 47 light light NN 33899 717 48 . . . 33899 718 1 In in IN 33899 718 2 practice practice NN 33899 718 3 lenses lense NNS 33899 718 4 up up IN 33899 718 5 to to TO 33899 718 6 6 6 CD 33899 718 7 inches inch NNS 33899 718 8 focus focus NN 33899 718 9 are be VBP 33899 718 10 usually usually RB 33899 718 11 made make VBN 33899 718 12 of of IN 33899 718 13 2 2 CD 33899 718 14 inches inch NNS 33899 718 15 diameter diameter NNP 33899 718 16 , , , 33899 718 17 and and CC 33899 718 18 there there EX 33899 718 19 is be VBZ 33899 718 20 no no DT 33899 718 21 advantage advantage NN 33899 718 22 in in IN 33899 718 23 a a DT 33899 718 24 larger large JJR 33899 718 25 size size NN 33899 718 26 . . . 33899 719 1 With with IN 33899 719 2 a a DT 33899 719 3 lens lens NN 33899 719 4 of of IN 33899 719 5 8 8 CD 33899 719 6 inches inch NNS 33899 719 7 focus focus VBP 33899 719 8 there there EX 33899 719 9 is be VBZ 33899 719 10 a a DT 33899 719 11 slight slight JJ 33899 719 12 gain gain NN 33899 719 13 in in IN 33899 719 14 increasing increase VBG 33899 719 15 the the DT 33899 719 16 diameter diameter NN 33899 719 17 to to IN 33899 719 18 2 2 CD 33899 719 19 - - SYM 33899 719 20 3/8 3/8 CD 33899 719 21 ( ( -LRB- 33899 719 22 the the DT 33899 719 23 next next JJ 33899 719 24 ' ' `` 33899 719 25 standard standard JJ 33899 719 26 ' ' '' 33899 719 27 size size NN 33899 719 28 ) ) -RRB- 33899 719 29 , , , 33899 719 30 and and CC 33899 719 31 lenses lense NNS 33899 719 32 of of IN 33899 719 33 longer long JJR 33899 719 34 focus focus NN 33899 719 35 than than IN 33899 719 36 this this DT 33899 719 37 should should MD 33899 719 38 certainly certainly RB 33899 719 39 be be VB 33899 719 40 2 2 CD 33899 719 41 - - SYM 33899 719 42 3/8 3/8 CD 33899 719 43 inches inch NNS 33899 719 44 up up IN 33899 719 45 to to IN 33899 719 46 , , , 33899 719 47 say say VB 33899 719 48 , , , 33899 719 49 12 12 CD 33899 719 50 inches inch NNS 33899 719 51 focus focus VBP 33899 719 52 , , , 33899 719 53 when when WRB 33899 719 54 a a DT 33899 719 55 lens lens NN 33899 719 56 of of IN 33899 719 57 3 3 CD 33899 719 58 inches inch NNS 33899 719 59 diameter diameter NNP 33899 719 60 is be VBZ 33899 719 61 preferable preferable JJ 33899 719 62 . . . 33899 720 1 These these DT 33899 720 2 large large JJ 33899 720 3 lenses lense NNS 33899 720 4 are be VBP 33899 720 5 , , , 33899 720 6 however however RB 33899 720 7 , , , 33899 720 8 very very RB 33899 720 9 expensive expensive JJ 33899 720 10 , , , 33899 720 11 both both DT 33899 720 12 in in IN 33899 720 13 themselves -PRON- PRP 33899 720 14 and and CC 33899 720 15 also also RB 33899 720 16 on on IN 33899 720 17 account account NN 33899 720 18 of of IN 33899 720 19 the the DT 33899 720 20 fact fact NN 33899 720 21 that that IN 33899 720 22 their -PRON- PRP$ 33899 720 23 weight weight NN 33899 720 24 entails entail VBZ 33899 720 25 heavy heavy JJ 33899 720 26 and and CC 33899 720 27 expensive expensive JJ 33899 720 28 brass brass NN 33899 720 29 mounting mounting NN 33899 720 30 , , , 33899 720 31 and and CC 33899 720 32 hence hence RB 33899 720 33 lenses lense VBZ 33899 720 34 up up IN 33899 720 35 to to IN 33899 720 36 14 14 CD 33899 720 37 or or CC 33899 720 38 15 15 CD 33899 720 39 inches inch NNS 33899 720 40 focus focus NN 33899 720 41 are be VBP 33899 720 42 often often RB 33899 720 43 supplied supply VBN 33899 720 44 in in IN 33899 720 45 the the DT 33899 720 46 2 2 CD 33899 720 47 - - SYM 33899 720 48 3/8 3/8 CD 33899 720 49 size size NN 33899 720 50 for for IN 33899 720 51 reasons reason NNS 33899 720 52 of of IN 33899 720 53 economy economy NN 33899 720 54 . . . 33899 721 1 To to TO 33899 721 2 sum sum VB 33899 721 3 up up RP 33899 721 4 , , , 33899 721 5 _ _ NNP 33899 721 6 short short JJ 33899 721 7 - - HYPH 33899 721 8 range range NN 33899 721 9 _ _ NNP 33899 721 10 lanterns lantern NNS 33899 721 11 , , , 33899 721 12 as as IN 33899 721 13 they -PRON- PRP 33899 721 14 are be VBP 33899 721 15 called call VBN 33899 721 16 , , , 33899 721 17 are be VBP 33899 721 18 usually usually RB 33899 721 19 fitted fit VBN 33899 721 20 with with IN 33899 721 21 lenses lense NNS 33899 721 22 of of IN 33899 721 23 2 2 CD 33899 721 24 inches inch NNS 33899 721 25 diameter diameter NNP 33899 721 26 , , , 33899 721 27 and and CC 33899 721 28 _ _ NNP 33899 721 29 long long JJ 33899 721 30 - - HYPH 33899 721 31 range range NN 33899 721 32 _ _ NNP 33899 721 33 instruments instrument NNS 33899 721 34 either either CC 33899 721 35 with with IN 33899 721 36 3-inch 3-inch CD 33899 721 37 lenses lense NNS 33899 721 38 or or CC 33899 721 39 the the DT 33899 721 40 intermediate intermediate JJ 33899 721 41 size size NN 33899 721 42 of of IN 33899 721 43 2 2 CD 33899 721 44 - - SYM 33899 721 45 3/8 3/8 CD 33899 721 46 inches inch NNS 33899 721 47 . . . 33899 722 1 If if IN 33899 722 2 a a DT 33899 722 3 lantern lantern NN 33899 722 4 is be VBZ 33899 722 5 purchased purchase VBN 33899 722 6 for for IN 33899 722 7 either either DT 33899 722 8 long long JJ 33899 722 9 or or CC 33899 722 10 short short JJ 33899 722 11 - - HYPH 33899 722 12 range range NN 33899 722 13 work work NN 33899 722 14 , , , 33899 722 15 it -PRON- PRP 33899 722 16 is be VBZ 33899 722 17 usually usually RB 33899 722 18 fitted fit VBN 33899 722 19 with with IN 33899 722 20 a a DT 33899 722 21 brass brass NN 33899 722 22 front front NN 33899 722 23 for for IN 33899 722 24 a a DT 33899 722 25 large large JJ 33899 722 26 lens lens NN 33899 722 27 , , , 33899 722 28 and and CC 33899 722 29 so so RB 33899 722 30 arranged arrange VBD 33899 722 31 that that IN 33899 722 32 a a DT 33899 722 33 shorter short JJR 33899 722 34 focus focus JJ 33899 722 35 lens lens NN 33899 722 36 of of IN 33899 722 37 2 2 CD 33899 722 38 inches inch NNS 33899 722 39 diameter diameter NN 33899 722 40 can can MD 33899 722 41 easily easily RB 33899 722 42 be be VB 33899 722 43 interchanged interchange VBN 33899 722 44 , , , 33899 722 45 utilising utilise VBG 33899 722 46 the the DT 33899 722 47 same same JJ 33899 722 48 brass brass NN 33899 722 49 mounting mounting NN 33899 722 50 . . . 33899 723 1 Lenses lense NNS 33899 723 2 of of IN 33899 723 3 _ _ NNP 33899 723 4 variable variable JJ 33899 723 5 _ _ NNP 33899 723 6 focus focus NN 33899 723 7 have have VBP 33899 723 8 also also RB 33899 723 9 been be VBN 33899 723 10 designed design VBN 33899 723 11 , , , 33899 723 12 in in IN 33899 723 13 which which WDT 33899 723 14 an an DT 33899 723 15 additional additional JJ 33899 723 16 lens lens NN 33899 723 17 can can MD 33899 723 18 be be VB 33899 723 19 added add VBN 33899 723 20 or or CC 33899 723 21 subtracted subtract VBN 33899 723 22 to to TO 33899 723 23 increase increase VB 33899 723 24 or or CC 33899 723 25 decrease decrease VB 33899 723 26 the the DT 33899 723 27 focal focal JJ 33899 723 28 length length NN 33899 723 29 ; ; : 33899 723 30 but but CC 33899 723 31 nothing nothing NN 33899 723 32 very very RB 33899 723 33 practical practical JJ 33899 723 34 has have VBZ 33899 723 35 yet yet RB 33899 723 36 been be VBN 33899 723 37 achieved achieve VBN 33899 723 38 in in IN 33899 723 39 this this DT 33899 723 40 direction direction NN 33899 723 41 , , , 33899 723 42 and and CC 33899 723 43 therefore therefore RB 33899 723 44 these these DT 33899 723 45 ' ' `` 33899 723 46 Omnifocal omnifocal JJ 33899 723 47 ' ' '' 33899 723 48 lenses lense NNS 33899 723 49 have have VBP 33899 723 50 never never RB 33899 723 51 come come VBN 33899 723 52 into into IN 33899 723 53 general general JJ 33899 723 54 favour favour NN 33899 723 55 . . . 33899 724 1 Objectives objective NNS 33899 724 2 like like IN 33899 724 3 condensers condenser NNS 33899 724 4 want want VBP 33899 724 5 cleaning clean VBG 33899 724 6 at at IN 33899 724 7 times time NNS 33899 724 8 , , , 33899 724 9 and and CC 33899 724 10 care care NN 33899 724 11 must must MD 33899 724 12 be be VB 33899 724 13 taken take VBN 33899 724 14 not not RB 33899 724 15 to to TO 33899 724 16 scratch scratch VB 33899 724 17 the the DT 33899 724 18 glass glass NN 33899 724 19 , , , 33899 724 20 as as IN 33899 724 21 the the DT 33899 724 22 concave concave NNP 33899 724 23 lens lens NN 33899 724 24 of of IN 33899 724 25 each each DT 33899 724 26 component component NN 33899 724 27 is be VBZ 33899 724 28 of of IN 33899 724 29 flint flint NN 33899 724 30 glass glass NN 33899 724 31 , , , 33899 724 32 and and CC 33899 724 33 very very RB 33899 724 34 soft soft JJ 33899 724 35 . . . 33899 725 1 A a DT 33899 725 2 { { -LRB- 33899 725 3 70 70 CD 33899 725 4 } } -RRB- 33899 725 5 clean clean NNP 33899 725 6 chamois chamois NNP 33899 725 7 leather leather NN 33899 725 8 is be VBZ 33899 725 9 the the DT 33899 725 10 best good JJS 33899 725 11 thing thing NN 33899 725 12 to to TO 33899 725 13 use use VB 33899 725 14 , , , 33899 725 15 but but CC 33899 725 16 a a DT 33899 725 17 soft soft JJ 33899 725 18 cloth cloth NN 33899 725 19 , , , 33899 725 20 or or CC 33899 725 21 even even RB 33899 725 22 a a DT 33899 725 23 handkerchief handkerchief NN 33899 725 24 , , , 33899 725 25 may may MD 33899 725 26 be be VB 33899 725 27 employed employ VBN 33899 725 28 with with IN 33899 725 29 care care NN 33899 725 30 . . . 33899 726 1 It -PRON- PRP 33899 726 2 is be VBZ 33899 726 3 very very RB 33899 726 4 important important JJ 33899 726 5 that that IN 33899 726 6 a a DT 33899 726 7 lens lens NN 33899 726 8 be be VB 33899 726 9 reassembled reassemble VBN 33899 726 10 , , , 33899 726 11 after after IN 33899 726 12 cleaning cleaning NN 33899 726 13 , , , 33899 726 14 the the DT 33899 726 15 correct correct JJ 33899 726 16 way way NN 33899 726 17 , , , 33899 726 18 as as IN 33899 726 19 a a DT 33899 726 20 single single JJ 33899 726 21 lens lens NN 33899 726 22 reversed reverse VBD 33899 726 23 would would MD 33899 726 24 utterly utterly RB 33899 726 25 spoil spoil VB 33899 726 26 the the DT 33899 726 27 definition definition NN 33899 726 28 . . . 33899 727 1 The the DT 33899 727 2 front front JJ 33899 727 3 component component NN 33899 727 4 is be VBZ 33899 727 5 usually usually RB 33899 727 6 balsamed balsame VBN 33899 727 7 together together RB 33899 727 8 , , , 33899 727 9 and and CC 33899 727 10 therefore therefore RB 33899 727 11 all all DT 33899 727 12 that that WDT 33899 727 13 is be VBZ 33899 727 14 needed need VBN 33899 727 15 is be VBZ 33899 727 16 to to TO 33899 727 17 see see VB 33899 727 18 that that IN 33899 727 19 the the DT 33899 727 20 whole whole JJ 33899 727 21 combination combination NN 33899 727 22 is be VBZ 33899 727 23 not not RB 33899 727 24 reversed reverse VBN 33899 727 25 . . . 33899 728 1 In in IN 33899 728 2 the the DT 33899 728 3 Petzval Petzval NNP 33899 728 4 system system NN 33899 728 5 this this DT 33899 728 6 lens lens NN 33899 728 7 should should MD 33899 728 8 have have VB 33899 728 9 its -PRON- PRP$ 33899 728 10 convex convex NNP 33899 728 11 constituent constituent NN 33899 728 12 towards towards IN 33899 728 13 the the DT 33899 728 14 screen screen NN 33899 728 15 ( ( -LRB- 33899 728 16 Fig fig NN 33899 728 17 . . . 33899 729 1 41 41 CD 33899 729 2 ) ) -RRB- 33899 729 3 . . . 33899 730 1 The the DT 33899 730 2 back back JJ 33899 730 3 combination combination NN 33899 730 4 is be VBZ 33899 730 5 usually usually RB 33899 730 6 loose loose JJ 33899 730 7 , , , 33899 730 8 and and CC 33899 730 9 the the DT 33899 730 10 two two CD 33899 730 11 lenses lense NNS 33899 730 12 are be VBP 33899 730 13 sometimes sometimes RB 33899 730 14 separated separate VBN 33899 730 15 by by IN 33899 730 16 a a DT 33899 730 17 thin thin JJ 33899 730 18 brass brass NN 33899 730 19 ring ring NN 33899 730 20 . . . 33899 731 1 In in IN 33899 731 2 the the DT 33899 731 3 Petzval Petzval NNP 33899 731 4 lens lens NN 33899 731 5 the the DT 33899 731 6 concave concave NNP 33899 731 7 element element NN 33899 731 8 should should MD 33899 731 9 be be VB 33899 731 10 inside inside RB 33899 731 11 , , , 33899 731 12 with with IN 33899 731 13 its -PRON- PRP$ 33899 731 14 concave concave NNP 33899 731 15 surface surface NN 33899 731 16 outwards outward NNS 33899 731 17 , , , 33899 731 18 the the DT 33899 731 19 deep deep JJ 33899 731 20 curve curve NN 33899 731 21 of of IN 33899 731 22 the the DT 33899 731 23 other other JJ 33899 731 24 lens lens NN 33899 731 25 should should MD 33899 731 26 fit fit VB 33899 731 27 into into IN 33899 731 28 this this DT 33899 731 29 concavity concavity NN 33899 731 30 , , , 33899 731 31 and and CC 33899 731 32 the the DT 33899 731 33 flatter flat JJR 33899 731 34 curve curve NN 33899 731 35 face face NN 33899 731 36 towards towards IN 33899 731 37 the the DT 33899 731 38 condenser condenser NN 33899 731 39 . . . 33899 732 1 One one CD 33899 732 2 or or CC 33899 732 3 two two CD 33899 732 4 makers maker NNS 33899 732 5 , , , 33899 732 6 however however RB 33899 732 7 , , , 33899 732 8 have have VBP 33899 732 9 introduced introduce VBN 33899 732 10 a a DT 33899 732 11 modification modification NN 33899 732 12 of of IN 33899 732 13 the the DT 33899 732 14 Petzval Petzval NNP 33899 732 15 system system NN 33899 732 16 in in IN 33899 732 17 which which WDT 33899 732 18 the the DT 33899 732 19 whole whole NN 33899 732 20 of of IN 33899 732 21 this this DT 33899 732 22 back back JJ 33899 732 23 combination combination NN 33899 732 24 is be VBZ 33899 732 25 reversed reverse VBN 33899 732 26 , , , 33899 732 27 and and CC 33899 732 28 the the DT 33899 732 29 exact exact JJ 33899 732 30 arrangement arrangement NN 33899 732 31 should should MD 33899 732 32 therefore therefore RB 33899 732 33 be be VB 33899 732 34 noted note VBN 33899 732 35 very very RB 33899 732 36 carefully carefully RB 33899 732 37 when when WRB 33899 732 38 taking take VBG 33899 732 39 the the DT 33899 732 40 lens lens NN 33899 732 41 to to IN 33899 732 42 pieces piece NNS 33899 732 43 . . . 33899 733 1 * * NFP 33899 733 2 * * NFP 33899 733 3 * * NFP 33899 733 4 * * NFP 33899 733 5 * * NFP 33899 733 6 CHAPTER chapter NN 33899 733 7 VIII viii NN 33899 733 8 THE the DT 33899 733 9 BODY body NN 33899 733 10 OF of IN 33899 733 11 THE the DT 33899 733 12 LANTERN LANTERN NNP 33899 733 13 We -PRON- PRP 33899 733 14 now now RB 33899 733 15 come come VBP 33899 733 16 to to IN 33899 733 17 the the DT 33899 733 18 mechanical mechanical JJ 33899 733 19 construction construction NN 33899 733 20 of of IN 33899 733 21 the the DT 33899 733 22 optical optical JJ 33899 733 23 lantern lantern NN 33899 733 24 , , , 33899 733 25 and and CC 33899 733 26 a a DT 33899 733 27 great great JJ 33899 733 28 variety variety NN 33899 733 29 of of IN 33899 733 30 design design NN 33899 733 31 presents present NNS 33899 733 32 itself -PRON- PRP 33899 733 33 , , , 33899 733 34 according accord VBG 33899 733 35 to to IN 33899 733 36 price price NN 33899 733 37 , , , 33899 733 38 type type NN 33899 733 39 ( ( -LRB- 33899 733 40 _ _ NNP 33899 733 41 i.e. i.e. FW 33899 733 42 _ _ NNP 33899 733 43 short short JJ 33899 733 44 range range NN 33899 733 45 or or CC 33899 733 46 long long JJ 33899 733 47 range range NN 33899 733 48 ) ) -RRB- 33899 733 49 , , , 33899 733 50 and and CC 33899 733 51 the the DT 33899 733 52 individual individual JJ 33899 733 53 ideas idea NNS 33899 733 54 of of IN 33899 733 55 the the DT 33899 733 56 various various JJ 33899 733 57 makers maker NNS 33899 733 58 . . . 33899 734 1 Lantern lantern JJ 33899 734 2 bodies body NNS 33899 734 3 as as IN 33899 734 4 a a DT 33899 734 5 rule rule NN 33899 734 6 are be VBP 33899 734 7 now now RB 33899 734 8 made make VBN 33899 734 9 of of IN 33899 734 10 metal metal NN 33899 734 11 , , , 33899 734 12 although although IN 33899 734 13 up up RB 33899 734 14 till till IN 33899 734 15 quite quite RB 33899 734 16 recently recently RB 33899 734 17 the the DT 33899 734 18 better well JJR 33899 734 19 class class NN 33899 734 20 instruments instrument NNS 33899 734 21 were be VBD 33899 734 22 more more RBR 33899 734 23 usually usually RB 33899 734 24 made make VBN 33899 734 25 of of IN 33899 734 26 polished polished JJ 33899 734 27 mahogany mahogany NN 33899 734 28 lined line VBN 33899 734 29 internally internally RB 33899 734 30 with with IN 33899 734 31 iron iron NN 33899 734 32 ; ; : 33899 734 33 but but CC 33899 734 34 there there EX 33899 734 35 has have VBZ 33899 734 36 of of IN 33899 734 37 late late RB 33899 734 38 been be VBN 33899 734 39 a a DT 33899 734 40 consensus consensus NN 33899 734 41 of of IN 33899 734 42 opinion opinion NN 33899 734 43 in in IN 33899 734 44 favour favour NN 33899 734 45 of of IN 33899 734 46 metal metal NN 33899 734 47 only only RB 33899 734 48 . . . 33899 735 1 In in IN 33899 735 2 the the DT 33899 735 3 cheaper cheap JJR 33899 735 4 lanterns lantern NNS 33899 735 5 this this DT 33899 735 6 metal metal NN 33899 735 7 body body NN 33899 735 8 is be VBZ 33899 735 9 usually usually RB 33899 735 10 made make VBN 33899 735 11 either either DT 33899 735 12 of of IN 33899 735 13 Russian russian JJ 33899 735 14 iron iron NN 33899 735 15 or or CC 33899 735 16 of of IN 33899 735 17 sheet sheet NN 33899 735 18 - - HYPH 33899 735 19 iron iron NN 33899 735 20 tinned tin VBN 33899 735 21 and and CC 33899 735 22 japanned japan VBD 33899 735 23 , , , 33899 735 24 { { -LRB- 33899 735 25 71 71 CD 33899 735 26 } } -RRB- 33899 735 27 there there RB 33899 735 28 being be VBG 33899 735 29 little little JJ 33899 735 30 to to TO 33899 735 31 choose choose VB 33899 735 32 either either CC 33899 735 33 in in IN 33899 735 34 price price NN 33899 735 35 or or CC 33899 735 36 quality quality NN 33899 735 37 between between IN 33899 735 38 the the DT 33899 735 39 two two CD 33899 735 40 varieties variety NNS 33899 735 41 , , , 33899 735 42 and and CC 33899 735 43 in in IN 33899 735 44 all all DT 33899 735 45 but but IN 33899 735 46 the the DT 33899 735 47 very very RB 33899 735 48 cheapest cheap JJS 33899 735 49 instruments instrument NNS 33899 735 50 the the DT 33899 735 51 front front NN 33899 735 52 is be VBZ 33899 735 53 usually usually RB 33899 735 54 of of IN 33899 735 55 brass brass NN 33899 735 56 . . . 33899 736 1 In in IN 33899 736 2 better well JJR 33899 736 3 lanterns lantern NNS 33899 736 4 the the DT 33899 736 5 body body NN 33899 736 6 is be VBZ 33899 736 7 more more RBR 33899 736 8 often often RB 33899 736 9 made make VBN 33899 736 10 of of IN 33899 736 11 enamelled enamel VBN 33899 736 12 steel steel NN 33899 736 13 , , , 33899 736 14 the the DT 33899 736 15 front front NN 33899 736 16 as as IN 33899 736 17 before before IN 33899 736 18 being be VBG 33899 736 19 of of IN 33899 736 20 brass brass NN 33899 736 21 ; ; : 33899 736 22 but but CC 33899 736 23 brass brass NN 33899 736 24 , , , 33899 736 25 copper copper NN 33899 736 26 , , , 33899 736 27 or or CC 33899 736 28 aluminium aluminium NN 33899 736 29 are be VBP 33899 736 30 also also RB 33899 736 31 used use VBN 33899 736 32 occasionally occasionally RB 33899 736 33 for for IN 33899 736 34 the the DT 33899 736 35 body body NN 33899 736 36 of of IN 33899 736 37 the the DT 33899 736 38 lantern lantern NN 33899 736 39 . . . 33899 737 1 [ [ -LRB- 33899 737 2 Illustration illustration NN 33899 737 3 : : : 33899 737 4 FIG FIG NNP 33899 737 5 . . . 33899 738 1 42.--Hughes 42.--hughes LS 33899 738 2 ' ' `` 33899 738 3 Short Short NNP 33899 738 4 - - HYPH 33899 738 5 Range Range NNP 33899 738 6 Lantern Lantern NNP 33899 738 7 . . . 33899 738 8 ] ] -RRB- 33899 739 1 In in IN 33899 739 2 deciding decide VBG 33899 739 3 upon upon IN 33899 739 4 the the DT 33899 739 5 type type NN 33899 739 6 of of IN 33899 739 7 body body NN 33899 739 8 to to TO 33899 739 9 be be VB 33899 739 10 purchased purchase VBN 33899 739 11 the the DT 33899 739 12 main main JJ 33899 739 13 considerations consideration NNS 33899 739 14 to to TO 33899 739 15 be be VB 33899 739 16 borne bear VBN 33899 739 17 in in IN 33899 739 18 mind mind NN 33899 739 19 are be VBP 33899 739 20 : : : 33899 739 21 ( ( -LRB- 33899 739 22 1 1 LS 33899 739 23 ) ) -RRB- 33899 739 24 The the DT 33899 739 25 type type NN 33899 739 26 or or CC 33899 739 27 types type NNS 33899 739 28 of of IN 33899 739 29 illuminant illuminant NN 33899 739 30 to to TO 33899 739 31 be be VB 33899 739 32 used use VBN 33899 739 33 , , , 33899 739 34 a a DT 33899 739 35 powerful powerful JJ 33899 739 36 arc arc NN 33899 739 37 lamp lamp NN 33899 739 38 for for IN 33899 739 39 example example NN 33899 739 40 requiring require VBG 33899 739 41 a a DT 33899 739 42 larger large JJR 33899 739 43 body body NN 33899 739 44 than than IN 33899 739 45 is be VBZ 33899 739 46 necessary necessary JJ 33899 739 47 for for IN 33899 739 48 a a DT 33899 739 49 weaker weak JJR 33899 739 50 radiant radiant NN 33899 739 51 ; ; : 33899 739 52 ( ( -LRB- 33899 739 53 2 2 LS 33899 739 54 ) ) -RRB- 33899 739 55 the the DT 33899 739 56 size size NN 33899 739 57 and and CC 33899 739 58 position position NN 33899 739 59 of of IN 33899 739 60 the the DT 33899 739 61 lens lens NN 33899 739 62 to to TO 33899 739 63 be be VB 33899 739 64 carried carry VBN 33899 739 65 , , , 33899 739 66 a a DT 33899 739 67 Petzval Petzval NNP 33899 739 68 objective objective NN 33899 739 69 of of IN 33899 739 70 say say NN 33899 739 71 3 3 CD 33899 739 72 inches inch NNS 33899 739 73 diameter diameter NN 33899 739 74 which which WDT 33899 739 75 has have VBZ 33899 739 76 to to TO 33899 739 77 be be VB 33899 739 78 supported support VBN 33899 739 79 at at IN 33899 739 80 the the DT 33899 739 81 end end NN 33899 739 82 of of IN 33899 739 83 a a DT 33899 739 84 long long JJ 33899 739 85 brass brass NN 33899 739 86 mount mount NN 33899 739 87 for for IN 33899 739 88 long long JJ 33899 739 89 - - HYPH 33899 739 90 range range NN 33899 739 91 work work NN 33899 739 92 obviously obviously RB 33899 739 93 demanding demand VBG 33899 739 94 a a DT 33899 739 95 body body NN 33899 739 96 of of IN 33899 739 97 greater great JJR 33899 739 98 strength strength NN 33899 739 99 and and CC 33899 739 100 rigidity rigidity NN 33899 739 101 than than IN 33899 739 102 is be VBZ 33899 739 103 required require VBN 33899 739 104 with with IN 33899 739 105 a a DT 33899 739 106 6-inch 6-inch CD 33899 739 107 focus focus NN 33899 739 108 lens len NNS 33899 739 109 of of IN 33899 739 110 2 2 CD 33899 739 111 inches inch NNS 33899 739 112 diameter diameter NN 33899 739 113 ; ; : 33899 739 114 ( ( -LRB- 33899 739 115 3 3 LS 33899 739 116 ) ) -RRB- 33899 739 117 price price NN 33899 739 118 . . . 33899 740 1 Fig fig NN 33899 740 2 . . . 33899 741 1 42 42 CD 33899 741 2 shows show VBZ 33899 741 3 an an DT 33899 741 4 extremely extremely RB 33899 741 5 good good JJ 33899 741 6 lantern lantern JJ 33899 741 7 body body NN 33899 741 8 for for IN 33899 741 9 short short JJ 33899 741 10 - - HYPH 33899 741 11 range range NN 33899 741 12 work work NN 33899 741 13 made make VBN 33899 741 14 by by IN 33899 741 15 Messrs. Messrs. NNPS 33899 741 16 Hughes Hughes NNP 33899 741 17 , , , 33899 741 18 the the DT 33899 741 19 illustration illustration NN 33899 741 20 depicting depict VBG 33899 741 21 the the DT 33899 741 22 instrument instrument NN 33899 741 23 complete complete JJ 33899 741 24 with with IN 33899 741 25 a a DT 33899 741 26 ' ' `` 33899 741 27 Luna Luna NNP 33899 741 28 ' ' '' 33899 741 29 methylated methylated JJ 33899 741 30 spirit spirit NN 33899 741 31 lamp lamp NN 33899 741 32 , , , 33899 741 33 though though RB 33899 741 34 , , , 33899 741 35 of of IN 33899 741 36 course course NN 33899 741 37 , , , 33899 741 38 any any DT 33899 741 39 other other JJ 33899 741 40 illuminant illuminant NN 33899 741 41 suitable suitable JJ 33899 741 42 for for IN 33899 741 43 a a DT 33899 741 44 small small JJ 33899 741 45 lantern lantern NN 33899 741 46 could could MD 33899 741 47 be be VB 33899 741 48 used use VBN 33899 741 49 instead instead RB 33899 741 50 . . . 33899 742 1 { { -LRB- 33899 742 2 72 72 CD 33899 742 3 } } -RRB- 33899 742 4 This this DT 33899 742 5 lantern lantern NN 33899 742 6 illustrates illustrate VBZ 33899 742 7 well well RB 33899 742 8 one one CD 33899 742 9 point point NN 33899 742 10 that that WDT 33899 742 11 has have VBZ 33899 742 12 already already RB 33899 742 13 been be VBN 33899 742 14 emphasised emphasise VBN 33899 742 15 as as IN 33899 742 16 important important JJ 33899 742 17 , , , 33899 742 18 viz viz NN 33899 742 19 . . . 33899 743 1 the the DT 33899 743 2 ventilation ventilation NN 33899 743 3 of of IN 33899 743 4 the the DT 33899 743 5 condenser condenser NN 33899 743 6 . . . 33899 744 1 It -PRON- PRP 33899 744 2 will will MD 33899 744 3 be be VB 33899 744 4 noticed notice VBN 33899 744 5 that that IN 33899 744 6 this this DT 33899 744 7 is be VBZ 33899 744 8 placed place VBN 33899 744 9 _ _ NNP 33899 744 10 outside outside IN 33899 744 11 _ _ NNP 33899 744 12 the the DT 33899 744 13 body body NN 33899 744 14 of of IN 33899 744 15 the the DT 33899 744 16 instrument instrument NN 33899 744 17 instead instead RB 33899 744 18 of of IN 33899 744 19 inside inside RB 33899 744 20 as as IN 33899 744 21 is be VBZ 33899 744 22 usual usual JJ 33899 744 23 with with IN 33899 744 24 larger large JJR 33899 744 25 bodies body NNS 33899 744 26 , , , 33899 744 27 and and CC 33899 744 28 that that IN 33899 744 29 wide wide JJ 33899 744 30 slots slot NNS 33899 744 31 are be VBP 33899 744 32 cut cut VBN 33899 744 33 in in IN 33899 744 34 the the DT 33899 744 35 condenser condenser NN 33899 744 36 mount mount VBP 33899 744 37 to to TO 33899 744 38 allow allow VB 33899 744 39 free free JJ 33899 744 40 escape escape NN 33899 744 41 of of IN 33899 744 42 steam steam NN 33899 744 43 . . . 33899 745 1 Other other JJ 33899 745 2 points point NNS 33899 745 3 of of IN 33899 745 4 this this DT 33899 745 5 excellent excellent JJ 33899 745 6 design design NN 33899 745 7 are be VBP 33899 745 8 the the DT 33899 745 9 screw screw JJ 33899 745 10 adjustment adjustment NN 33899 745 11 to to IN 33899 745 12 the the DT 33899 745 13 slide slide NN 33899 745 14 stage stage NN 33899 745 15 ( ( -LRB- 33899 745 16 facilitating facilitate VBG 33899 745 17 the the DT 33899 745 18 use use NN 33899 745 19 of of IN 33899 745 20 special special JJ 33899 745 21 slides slide NNS 33899 745 22 , , , 33899 745 23 such such JJ 33899 745 24 , , , 33899 745 25 for for IN 33899 745 26 example example NN 33899 745 27 , , , 33899 745 28 as as IN 33899 745 29 those those DT 33899 745 30 illustrating illustrate VBG 33899 745 31 the the DT 33899 745 32 movements movement NNS 33899 745 33 of of IN 33899 745 34 the the DT 33899 745 35 planetary planetary NN 33899 745 36 bodies body NNS 33899 745 37 which which WDT 33899 745 38 sometimes sometimes RB 33899 745 39 involve involve VBP 33899 745 40 the the DT 33899 745 41 use use NN 33899 745 42 of of IN 33899 745 43 extra extra JJ 33899 745 44 thick thick JJ 33899 745 45 frames frame NNS 33899 745 46 ) ) -RRB- 33899 745 47 and and CC 33899 745 48 a a DT 33899 745 49 simple simple JJ 33899 745 50 but but CC 33899 745 51 efficient efficient JJ 33899 745 52 tilting tilting NN 33899 745 53 arrangement arrangement NN 33899 745 54 to to IN 33899 745 55 the the DT 33899 745 56 base base NN 33899 745 57 . . . 33899 746 1 [ [ -LRB- 33899 746 2 Illustration illustration NN 33899 746 3 : : : 33899 746 4 FIG FIG NNP 33899 746 5 . . . 33899 747 1 43.--Long 43.--long LS 33899 747 2 - - : 33899 747 3 Range Range NNP 33899 747 4 Lantern Lantern NNP 33899 747 5 . . . 33899 747 6 ] ] -RRB- 33899 748 1 Such such PDT 33899 748 2 a a DT 33899 748 3 lantern lantern NN 33899 748 4 is be VBZ 33899 748 5 hardly hardly RB 33899 748 6 suitable suitable JJ 33899 748 7 for for IN 33899 748 8 a a DT 33899 748 9 powerful powerful JJ 33899 748 10 arc arc NN 33899 748 11 lamp lamp NN 33899 748 12 or or CC 33899 748 13 limelight limelight NN 33899 748 14 jet jet NN 33899 748 15 , , , 33899 748 16 or or CC 33899 748 17 for for IN 33899 748 18 heavy heavy JJ 33899 748 19 long long JJ 33899 748 20 - - HYPH 33899 748 21 range range NN 33899 748 22 lenses lense NNS 33899 748 23 , , , 33899 748 24 but but CC 33899 748 25 is be VBZ 33899 748 26 a a DT 33899 748 27 very very RB 33899 748 28 good good JJ 33899 748 29 typical typical JJ 33899 748 30 instrument instrument NN 33899 748 31 for for IN 33899 748 32 use use NN 33899 748 33 in in IN 33899 748 34 moderate moderate JJ 33899 748 35 - - HYPH 33899 748 36 sized sized JJ 33899 748 37 halls hall NNS 33899 748 38 , , , 33899 748 39 and and CC 33899 748 40 a a DT 33899 748 41 lantern lantern NN 33899 748 42 of of IN 33899 748 43 this this DT 33899 748 44 general general JJ 33899 748 45 type type NN 33899 748 46 is be VBZ 33899 748 47 usually usually RB 33899 748 48 found find VBN 33899 748 49 in in IN 33899 748 50 lantern lantern JJ 33899 748 51 catalogues catalogue NNS 33899 748 52 , , , 33899 748 53 though though RB 33899 748 54 , , , 33899 748 55 of of IN 33899 748 56 course course NN 33899 748 57 , , , 33899 748 58 the the DT 33899 748 59 exact exact JJ 33899 748 60 designs design NNS 33899 748 61 vary vary VBP 33899 748 62 according accord VBG 33899 748 63 to to IN 33899 748 64 the the DT 33899 748 65 ideas idea NNS 33899 748 66 of of IN 33899 748 67 the the DT 33899 748 68 manufacturer manufacturer NN 33899 748 69 . . . 33899 749 1 Of of IN 33899 749 2 lanterns lantern NNS 33899 749 3 for for IN 33899 749 4 long long JJ 33899 749 5 - - HYPH 33899 749 6 range range NN 33899 749 7 work work NN 33899 749 8 a a DT 33899 749 9 good good JJ 33899 749 10 example example NN 33899 749 11 is be VBZ 33899 749 12 perhaps perhaps RB 33899 749 13 Messrs. Messrs. NNPS 33899 749 14 Newton Newton NNP 33899 749 15 & & CC 33899 749 16 Co. Co. NNP 33899 749 17 's 's POS 33899 749 18 ' ' `` 33899 749 19 Intermediate intermediate JJ 33899 749 20 ' ' '' 33899 749 21 pattern pattern NN 33899 749 22 ( ( -LRB- 33899 749 23 Fig fig NN 33899 749 24 . . . 33899 750 1 43 43 LS 33899 750 2 ) ) -RRB- 33899 750 3 . . . 33899 751 1 This this DT 33899 751 2 again again RB 33899 751 3 is be VBZ 33899 751 4 only only RB 33899 751 5 typical typical JJ 33899 751 6 of of IN 33899 751 7 many many JJ 33899 751 8 others other NNS 33899 751 9 by by IN 33899 751 10 the the DT 33899 751 11 various various JJ 33899 751 12 makers maker NNS 33899 751 13 , , , 33899 751 14 but but CC 33899 751 15 the the DT 33899 751 16 principal principal JJ 33899 751 17 points point NNS 33899 751 18 are be VBP 33899 751 19 common common JJ 33899 751 20 to to IN 33899 751 21 all all DT 33899 751 22 . . . 33899 752 1 These these DT 33899 752 2 are be VBP 33899 752 3 : : : 33899 752 4 ( ( -LRB- 33899 752 5 1 1 LS 33899 752 6 ) ) -RRB- 33899 752 7 The the DT 33899 752 8 large large JJ 33899 752 9 and and CC 33899 752 10 well well RB 33899 752 11 - - HYPH 33899 752 12 ventilated ventilate VBN 33899 752 13 body body NN 33899 752 14 ; ; : 33899 752 15 ( ( -LRB- 33899 752 16 2 2 LS 33899 752 17 ) ) -RRB- 33899 752 18 the the DT 33899 752 19 long long JJ 33899 752 20 { { -LRB- 33899 752 21 73 73 CD 33899 752 22 } } -RRB- 33899 752 23 baseboard baseboard RB 33899 752 24 ; ; : 33899 752 25 ( ( -LRB- 33899 752 26 3 3 LS 33899 752 27 ) ) -RRB- 33899 752 28 the the DT 33899 752 29 strong strong JJ 33899 752 30 and and CC 33899 752 31 massive massive JJ 33899 752 32 brass brass NN 33899 752 33 front front NN 33899 752 34 necessary necessary JJ 33899 752 35 to to TO 33899 752 36 carry carry VB 33899 752 37 the the DT 33899 752 38 large large JJ 33899 752 39 long long JJ 33899 752 40 - - HYPH 33899 752 41 range range NN 33899 752 42 lenses lense NNS 33899 752 43 ; ; , 33899 752 44 ( ( -LRB- 33899 752 45 4 4 LS 33899 752 46 ) ) -RRB- 33899 752 47 the the DT 33899 752 48 velvet velvet NNS 33899 752 49 curtain curtain VBP 33899 752 50 at at IN 33899 752 51 the the DT 33899 752 52 back back NN 33899 752 53 to to TO 33899 752 54 close close VB 33899 752 55 in in IN 33899 752 56 any any DT 33899 752 57 stray stray JJ 33899 752 58 light light NN 33899 752 59 from from IN 33899 752 60 a a DT 33899 752 61 powerful powerful JJ 33899 752 62 arc arc NN 33899 752 63 lamp lamp NN 33899 752 64 . . . 33899 753 1 [ [ -LRB- 33899 753 2 Illustration illustration NN 33899 753 3 : : : 33899 753 4 FIG FIG NNP 33899 753 5 . . . 33899 754 1 44.--Connections 44.--connections CD 33899 754 2 for for IN 33899 754 3 a a DT 33899 754 4 Bi Bi NNP 33899 754 5 - - HYPH 33899 754 6 unial unial JJ 33899 754 7 Lantern Lantern NNP 33899 754 8 . . . 33899 754 9 ] ] -RRB- 33899 755 1 The the DT 33899 755 2 two two CD 33899 755 3 foregoing foregoing NN 33899 755 4 designs design NNS 33899 755 5 are be VBP 33899 755 6 perhaps perhaps RB 33899 755 7 sufficiently sufficiently RB 33899 755 8 typical typical JJ 33899 755 9 of of IN 33899 755 10 lantern lantern JJ 33899 755 11 bodies body NNS 33899 755 12 in in IN 33899 755 13 general general JJ 33899 755 14 to to TO 33899 755 15 make make VB 33899 755 16 further further JJ 33899 755 17 detailed detailed JJ 33899 755 18 description description NN 33899 755 19 of of IN 33899 755 20 individual individual JJ 33899 755 21 designs design NNS 33899 755 22 unnecessary unnecessary JJ 33899 755 23 ; ; : 33899 755 24 but but CC 33899 755 25 reference reference NN 33899 755 26 should should MD 33899 755 27 be be VB 33899 755 28 made make VBN 33899 755 29 to to IN 33899 755 30 features feature NNS 33899 755 31 which which WDT 33899 755 32 special special JJ 33899 755 33 requirements requirement NNS 33899 755 34 may may MD 33899 755 35 render render VB 33899 755 36 advisable advisable JJ 33899 755 37 . . . 33899 756 1 Under under IN 33899 756 2 this this DT 33899 756 3 heading head VBG 33899 756 4 mention mention NN 33899 756 5 must must MD 33899 756 6 be be VB 33899 756 7 made make VBN 33899 756 8 of of IN 33899 756 9 _ _ NNP 33899 756 10 Bi Bi NNP 33899 756 11 - - HYPH 33899 756 12 unials unial NNS 33899 756 13 _ _ NNP 33899 756 14 or or CC 33899 756 15 Double Double NNP 33899 756 16 Lanterns Lanterns NNPS 33899 756 17 , , , 33899 756 18 as as IN 33899 756 19 used use VBN 33899 756 20 for for IN 33899 756 21 the the DT 33899 756 22 once once RB 33899 756 23 famous famous JJ 33899 756 24 ' ' '' 33899 756 25 Dissolving Dissolving NNP 33899 756 26 Views Views NNPS 33899 756 27 . . . 33899 756 28 ' ' '' 33899 757 1 A a DT 33899 757 2 bi bi JJ 33899 757 3 - - JJ 33899 757 4 unial unial JJ 33899 757 5 lantern lantern NN 33899 757 6 consists consist VBZ 33899 757 7 essentially essentially RB 33899 757 8 of of IN 33899 757 9 two two CD 33899 757 10 different different JJ 33899 757 11 instruments instrument NNS 33899 757 12 , , , 33899 757 13 each each DT 33899 757 14 complete complete JJ 33899 757 15 with with IN 33899 757 16 its -PRON- PRP$ 33899 757 17 limelight limelight NN 33899 757 18 jet jet NN 33899 757 19 or or CC 33899 757 20 other other JJ 33899 757 21 illuminant illuminant JJ 33899 757 22 -- -- : 33899 757 23 front front NN 33899 757 24 , , , 33899 757 25 condensers condenser NNS 33899 757 26 , , , 33899 757 27 objective objective NNP 33899 757 28 , , , 33899 757 29 & & CC 33899 757 30 c. c. NNP 33899 757 31 , , , 33899 757 32 usually usually RB 33899 757 33 mounted mount VBD 33899 757 34 on on IN 33899 757 35 one one CD 33899 757 36 body body NN 33899 757 37 -- -- : 33899 757 38 and and CC 33899 757 39 with with IN 33899 757 40 some some DT 33899 757 41 arrangement arrangement NN 33899 757 42 for for IN 33899 757 43 ' ' `` 33899 757 44 dissolving dissolving NN 33899 757 45 ' ' '' 33899 757 46 or or CC 33899 757 47 turning turn VBG 33899 757 48 the the DT 33899 757 49 light light NN 33899 757 50 in in IN 33899 757 51 each each DT 33899 757 52 lantern lantern NN 33899 757 53 gradually gradually RB 33899 757 54 on on RB 33899 757 55 and and CC 33899 757 56 off off RB 33899 757 57 . . . 33899 758 1 Fig fig NN 33899 758 2 . . . 33899 759 1 44 44 CD 33899 759 2 shows show VBZ 33899 759 3 the the DT 33899 759 4 back back JJ 33899 759 5 view view NN 33899 759 6 of of IN 33899 759 7 such such PDT 33899 759 8 a a DT 33899 759 9 lantern lantern NN 33899 759 10 with with IN 33899 759 11 two two CD 33899 759 12 limelight limelight NN 33899 759 13 jets jet NNS 33899 759 14 and and CC 33899 759 15 dissolving dissolve VBG 33899 759 16 tap tap NN 33899 759 17 , , , 33899 759 18 this this DT 33899 759 19 piece piece NN 33899 759 20 of of IN 33899 759 21 mechanism mechanism NN 33899 759 22 ( ( -LRB- 33899 759 23 shown show VBN 33899 759 24 below below IN 33899 759 25 in in IN 33899 759 26 the the DT 33899 759 27 illustration illustration NN 33899 759 28 ) ) -RRB- 33899 759 29 being be VBG 33899 759 30 so so RB 33899 759 31 arranged arrange VBN 33899 759 32 that that IN 33899 759 33 when when WRB 33899 759 34 the the DT 33899 759 35 lever lever NN 33899 759 36 is be VBZ 33899 759 37 horizontal horizontal JJ 33899 759 38 _ _ NNP 33899 759 39 both both DT 33899 759 40 _ _ NNP 33899 759 41 lanterns lantern NNS 33899 759 42 are be VBP 33899 759 43 on on IN 33899 759 44 full full JJ 33899 759 45 , , , 33899 759 46 but but CC 33899 759 47 moving move VBG 33899 759 48 the the DT 33899 759 49 lever lever NN 33899 759 50 either either DT 33899 759 51 way way NN 33899 759 52 cuts cut VBZ 33899 759 53 off off RP 33899 759 54 the the DT 33899 759 55 gas gas NN 33899 759 56 supply supply NN 33899 759 57 to to IN 33899 759 58 one one CD 33899 759 59 lantern lantern NN 33899 759 60 . . . 33899 760 1 In in IN 33899 760 2 the the DT 33899 760 3 case case NN 33899 760 4 of of IN 33899 760 5 limelight limelight NN 33899 760 6 the the DT 33899 760 7 tap tap NN 33899 760 8 should should MD 33899 760 9 always always RB 33899 760 10 operate operate VB 33899 760 11 by by IN 33899 760 12 cutting cut VBG 33899 760 13 off off RP 33899 760 14 the the DT 33899 760 15 oxygen oxygen NN 33899 760 16 supply supply NN 33899 760 17 in in IN 33899 760 18 advance advance NN 33899 760 19 of of IN 33899 760 20 the the DT 33899 760 21 coal coal NN 33899 760 22 gas gas NN 33899 760 23 ( ( -LRB- 33899 760 24 in in IN 33899 760 25 order order NN 33899 760 26 to to TO 33899 760 27 avoid avoid VB 33899 760 28 a a DT 33899 760 29 ' ' `` 33899 760 30 snap snap NN 33899 760 31 ' ' '' 33899 760 32 ) ) -RRB- 33899 760 33 , , , 33899 760 34 and and CC 33899 760 35 the the DT 33899 760 36 latter latter JJ 33899 760 37 should should MD 33899 760 38 never never RB 33899 760 39 be be VB 33899 760 40 cut cut VBN 33899 760 41 off off RP 33899 760 42 entirely entirely RB 33899 760 43 , , , 33899 760 44 but but CC 33899 760 45 a a DT 33899 760 46 small small JJ 33899 760 47 bead bead NN 33899 760 48 of of IN 33899 760 49 flame flame NN 33899 760 50 left leave VBD 33899 760 51 to to TO 33899 760 52 keep keep VB 33899 760 53 the the DT 33899 760 54 jet jet NN 33899 760 55 alight alight NN 33899 760 56 , , , 33899 760 57 until until IN 33899 760 58 the the DT 33899 760 59 lantern lantern NN 33899 760 60 is be VBZ 33899 760 61 required require VBN 33899 760 62 for for IN 33899 760 63 the the DT 33899 760 64 next next JJ 33899 760 65 slide slide NN 33899 760 66 . . . 33899 761 1 { { -LRB- 33899 761 2 74 74 CD 33899 761 3 } } -RRB- 33899 761 4 This this DT 33899 761 5 is be VBZ 33899 761 6 usually usually RB 33899 761 7 arranged arrange VBN 33899 761 8 for for IN 33899 761 9 by by IN 33899 761 10 means mean NNS 33899 761 11 of of IN 33899 761 12 a a DT 33899 761 13 bye bye NN 33899 761 14 - - HYPH 33899 761 15 pass pass NN 33899 761 16 , , , 33899 761 17 and and CC 33899 761 18 a a DT 33899 761 19 bye bye NN 33899 761 20 - - HYPH 33899 761 21 pass pass NN 33899 761 22 is be VBZ 33899 761 23 sometimes sometimes RB 33899 761 24 provided provide VBN 33899 761 25 on on IN 33899 761 26 the the DT 33899 761 27 oxygen oxygen NN 33899 761 28 side side NN 33899 761 29 as as RB 33899 761 30 well well RB 33899 761 31 , , , 33899 761 32 but but CC 33899 761 33 is be VBZ 33899 761 34 usually usually RB 33899 761 35 discarded discard VBN 33899 761 36 in in IN 33899 761 37 practice practice NN 33899 761 38 . . . 33899 762 1 A a DT 33899 762 2 bi bi JJ 33899 762 3 - - JJ 33899 762 4 unial unial JJ 33899 762 5 lantern lantern NN 33899 762 6 can can MD 33899 762 7 be be VB 33899 762 8 worked work VBN 33899 762 9 in in IN 33899 762 10 the the DT 33899 762 11 same same JJ 33899 762 12 way way NN 33899 762 13 with with IN 33899 762 14 acetylene acetylene NN 33899 762 15 gas gas NN 33899 762 16 , , , 33899 762 17 but but CC 33899 762 18 with with IN 33899 762 19 the the DT 33899 762 20 electric electric JJ 33899 762 21 arc arc NN 33899 762 22 it -PRON- PRP 33899 762 23 is be VBZ 33899 762 24 impossible impossible JJ 33899 762 25 to to TO 33899 762 26 turn turn VB 33899 762 27 the the DT 33899 762 28 light light NN 33899 762 29 on on IN 33899 762 30 and and CC 33899 762 31 off off RB 33899 762 32 gradually gradually RB 33899 762 33 , , , 33899 762 34 and and CC 33899 762 35 in in IN 33899 762 36 practice practice NN 33899 762 37 dissolving dissolving NN 33899 762 38 must must MD 33899 762 39 be be VB 33899 762 40 done do VBN 33899 762 41 by by IN 33899 762 42 keeping keep VBG 33899 762 43 both both DT 33899 762 44 lanterns lantern NNS 33899 762 45 fully fully RB 33899 762 46 alight alight VBN 33899 762 47 , , , 33899 762 48 and and CC 33899 762 49 using use VBG 33899 762 50 a a DT 33899 762 51 dissolving dissolving NN 33899 762 52 shutter shutter NN 33899 762 53 , , , 33899 762 54 that that DT 33899 762 55 is be VBZ 33899 762 56 a a DT 33899 762 57 movable movable JJ 33899 762 58 shutter shutter NN 33899 762 59 that that WDT 33899 762 60 covers cover VBZ 33899 762 61 each each DT 33899 762 62 objective objective NN 33899 762 63 alternately alternately RB 33899 762 64 . . . 33899 763 1 The the DT 33899 763 2 same same JJ 33899 763 3 arrangement arrangement NN 33899 763 4 must must MD 33899 763 5 be be VB 33899 763 6 used use VBN 33899 763 7 with with IN 33899 763 8 other other JJ 33899 763 9 illuminants illuminant NNS 33899 763 10 , , , 33899 763 11 such such JJ 33899 763 12 as as IN 33899 763 13 oil oil NN 33899 763 14 , , , 33899 763 15 only only RB 33899 763 16 in in IN 33899 763 17 this this DT 33899 763 18 case case NN 33899 763 19 the the DT 33899 763 20 lanterns lantern NNS 33899 763 21 must must MD 33899 763 22 be be VB 33899 763 23 mounted mount VBN 33899 763 24 side side NN 33899 763 25 by by IN 33899 763 26 side side NN 33899 763 27 , , , 33899 763 28 on on IN 33899 763 29 account account NN 33899 763 30 of of IN 33899 763 31 the the DT 33899 763 32 tall tall JJ 33899 763 33 chimneys chimney NNS 33899 763 34 . . . 33899 764 1 With with IN 33899 764 2 oil oil NN 33899 764 3 lamps lamp NNS 33899 764 4 the the DT 33899 764 5 arrangement arrangement NN 33899 764 6 answers answer NNS 33899 764 7 fairly fairly RB 33899 764 8 well well RB 33899 764 9 , , , 33899 764 10 the the DT 33899 764 11 dissolving dissolve VBG 33899 764 12 fan fan NN 33899 764 13 , , , 33899 764 14 as as IN 33899 764 15 it -PRON- PRP 33899 764 16 is be VBZ 33899 764 17 termed term VBN 33899 764 18 , , , 33899 764 19 being be VBG 33899 764 20 made make VBN 33899 764 21 with with IN 33899 764 22 serrated serrated JJ 33899 764 23 edges edge NNS 33899 764 24 which which WDT 33899 764 25 give give VBP 33899 764 26 the the DT 33899 764 27 _ _ NNP 33899 764 28 gradual gradual JJ 33899 764 29 _ _ NNP 33899 764 30 obliteration obliteration NN 33899 764 31 required require VBN 33899 764 32 ; ; : 33899 764 33 but but CC 33899 764 34 with with IN 33899 764 35 the the DT 33899 764 36 electric electric JJ 33899 764 37 arc arc NN 33899 764 38 the the DT 33899 764 39 extremely extremely RB 33899 764 40 sharp sharp JJ 33899 764 41 definition definition NN 33899 764 42 becomes become VBZ 33899 764 43 a a DT 33899 764 44 serious serious JJ 33899 764 45 difficulty difficulty NN 33899 764 46 , , , 33899 764 47 and and CC 33899 764 48 a a DT 33899 764 49 good good JJ 33899 764 50 dissolver dissolver NN 33899 764 51 for for IN 33899 764 52 this this DT 33899 764 53 illuminant illuminant NN 33899 764 54 has have VBZ 33899 764 55 never never RB 33899 764 56 yet yet RB 33899 764 57 been be VBN 33899 764 58 found find VBN 33899 764 59 , , , 33899 764 60 though though RB 33899 764 61 , , , 33899 764 62 in in IN 33899 764 63 view view NN 33899 764 64 of of IN 33899 764 65 the the DT 33899 764 66 fact fact NN 33899 764 67 that that IN 33899 764 68 dissolving dissolve VBG 33899 764 69 views view NNS 33899 764 70 are be VBP 33899 764 71 more more RBR 33899 764 72 or or CC 33899 764 73 less less RBR 33899 764 74 a a DT 33899 764 75 thing thing NN 33899 764 76 of of IN 33899 764 77 the the DT 33899 764 78 past past NN 33899 764 79 , , , 33899 764 80 the the DT 33899 764 81 matter matter NN 33899 764 82 can can MD 33899 764 83 not not RB 33899 764 84 be be VB 33899 764 85 regarded regard VBN 33899 764 86 as as IN 33899 764 87 important important JJ 33899 764 88 . . . 33899 765 1 The the DT 33899 765 2 advantages advantage NNS 33899 765 3 claimed claim VBD 33899 765 4 for for IN 33899 765 5 a a DT 33899 765 6 double double JJ 33899 765 7 lantern lantern NN 33899 765 8 are be VBP 33899 765 9 two two CD 33899 765 10 : : : 33899 765 11 first first RB 33899 765 12 , , , 33899 765 13 a a DT 33899 765 14 ' ' `` 33899 765 15 Dissolving dissolving NN 33899 765 16 ' ' '' 33899 765 17 effect effect NN 33899 765 18 by by IN 33899 765 19 which which WDT 33899 765 20 one one CD 33899 765 21 picture picture NN 33899 765 22 fades fade NNS 33899 765 23 gradually gradually RB 33899 765 24 into into IN 33899 765 25 the the DT 33899 765 26 next next JJ 33899 765 27 , , , 33899 765 28 and and CC 33899 765 29 which which WDT 33899 765 30 is be VBZ 33899 765 31 supposed suppose VBN 33899 765 32 to to TO 33899 765 33 be be VB 33899 765 34 more more RBR 33899 765 35 pleasing pleasing JJ 33899 765 36 than than IN 33899 765 37 the the DT 33899 765 38 movement movement NN 33899 765 39 of of IN 33899 765 40 a a DT 33899 765 41 carrier carrier NN 33899 765 42 ; ; : 33899 765 43 and and CC 33899 765 44 second second RB 33899 765 45 , , , 33899 765 46 ' ' '' 33899 765 47 Dissolving Dissolving NNP 33899 765 48 Effects Effects NNPS 33899 765 49 ' ' '' 33899 765 50 can can MD 33899 765 51 be be VB 33899 765 52 shown show VBN 33899 765 53 , , , 33899 765 54 such such JJ 33899 765 55 as as IN 33899 765 56 exhibiting exhibit VBG 33899 765 57 a a DT 33899 765 58 landscape landscape NN 33899 765 59 by by IN 33899 765 60 day day NN 33899 765 61 and and CC 33899 765 62 changing change VBG 33899 765 63 it -PRON- PRP 33899 765 64 into into IN 33899 765 65 a a DT 33899 765 66 moonlight moonlight JJ 33899 765 67 scene scene NN 33899 765 68 , , , 33899 765 69 or or CC 33899 765 70 bringing bring VBG 33899 765 71 on on RP 33899 765 72 the the DT 33899 765 73 appearance appearance NN 33899 765 74 of of IN 33899 765 75 a a DT 33899 765 76 snowstorm snowstorm NN 33899 765 77 , , , 33899 765 78 which which WDT 33899 765 79 can can MD 33899 765 80 easily easily RB 33899 765 81 be be VB 33899 765 82 done do VBN 33899 765 83 by by IN 33899 765 84 means mean NNS 33899 765 85 of of IN 33899 765 86 a a DT 33899 765 87 roller roller NN 33899 765 88 slide slide NN 33899 765 89 , , , 33899 765 90 with with IN 33899 765 91 minute minute JJ 33899 765 92 perforations perforation NNS 33899 765 93 shown show VBN 33899 765 94 in in IN 33899 765 95 motion motion NN 33899 765 96 by by IN 33899 765 97 the the DT 33899 765 98 second second JJ 33899 765 99 lantern lantern NN 33899 765 100 while while IN 33899 765 101 the the DT 33899 765 102 landscape landscape NN 33899 765 103 remains remain VBZ 33899 765 104 on on IN 33899 765 105 the the DT 33899 765 106 screen screen NN 33899 765 107 from from IN 33899 765 108 the the DT 33899 765 109 first first JJ 33899 765 110 . . . 33899 766 1 In in IN 33899 766 2 the the DT 33899 766 3 days day NNS 33899 766 4 when when WRB 33899 766 5 dissolving dissolve VBG 33899 766 6 views view NNS 33899 766 7 were be VBD 33899 766 8 all all PDT 33899 766 9 the the DT 33899 766 10 vogue vogue NN 33899 766 11 , , , 33899 766 12 a a DT 33899 766 13 third third JJ 33899 766 14 or or CC 33899 766 15 even even RB 33899 766 16 a a DT 33899 766 17 fourth fourth JJ 33899 766 18 lantern lantern NN 33899 766 19 has have VBZ 33899 766 20 been be VBN 33899 766 21 added add VBN 33899 766 22 for for IN 33899 766 23 more more RBR 33899 766 24 complicated complicated JJ 33899 766 25 effects effect NNS 33899 766 26 , , , 33899 766 27 and and CC 33899 766 28 at at IN 33899 766 29 the the DT 33899 766 30 famous famous JJ 33899 766 31 Polytechnic polytechnic JJ 33899 766 32 demonstrations demonstration NNS 33899 766 33 of of IN 33899 766 34 years year NNS 33899 766 35 ago ago RB 33899 766 36 , , , 33899 766 37 I -PRON- PRP 33899 766 38 believe believe VBP 33899 766 39 that that IN 33899 766 40 as as RB 33899 766 41 many many JJ 33899 766 42 as as IN 33899 766 43 six six CD 33899 766 44 were be VBD 33899 766 45 sometimes sometimes RB 33899 766 46 employed employ VBN 33899 766 47 . . . 33899 767 1 In in IN 33899 767 2 these these DT 33899 767 3 days day NNS 33899 767 4 of of IN 33899 767 5 the the DT 33899 767 6 cinematograph cinematograph NN 33899 767 7 it -PRON- PRP 33899 767 8 is be VBZ 33899 767 9 doubtful doubtful JJ 33899 767 10 how how WRB 33899 767 11 far far JJ 33899 767 12 interest interest NN 33899 767 13 in in IN 33899 767 14 such such JJ 33899 767 15 effects effect NNS 33899 767 16 could could MD 33899 767 17 be be VB 33899 767 18 revived revive VBN 33899 767 19 , , , 33899 767 20 and and CC 33899 767 21 a a DT 33899 767 22 lantern lantern NN 33899 767 23 has have VBZ 33899 767 24 { { -LRB- 33899 767 25 75 75 CD 33899 767 26 } } -RRB- 33899 767 27 gradually gradually RB 33899 767 28 come come VBP 33899 767 29 to to TO 33899 767 30 be be VB 33899 767 31 looked look VBN 33899 767 32 on on IN 33899 767 33 more more JJR 33899 767 34 as as IN 33899 767 35 an an DT 33899 767 36 instrument instrument NN 33899 767 37 for for IN 33899 767 38 showing show VBG 33899 767 39 illustrations illustration NNS 33899 767 40 as as IN 33899 767 41 required require VBN 33899 767 42 by by IN 33899 767 43 the the DT 33899 767 44 lecturer lecturer NN 33899 767 45 rather rather RB 33899 767 46 than than IN 33899 767 47 as as IN 33899 767 48 a a DT 33899 767 49 pleasing pleasing JJ 33899 767 50 exhibition exhibition NN 33899 767 51 in in IN 33899 767 52 itself -PRON- PRP 33899 767 53 , , , 33899 767 54 and and CC 33899 767 55 as as IN 33899 767 56 dissolving dissolve VBG 33899 767 57 views view NNS 33899 767 58 have have VBP 33899 767 59 lost lose VBN 33899 767 60 their -PRON- PRP$ 33899 767 61 attraction attraction NN 33899 767 62 , , , 33899 767 63 the the DT 33899 767 64 double double JJ 33899 767 65 or or CC 33899 767 66 triple triple JJ 33899 767 67 lantern lantern NN 33899 767 68 has have VBZ 33899 767 69 been be VBN 33899 767 70 relegated relegate VBN 33899 767 71 to to IN 33899 767 72 the the DT 33899 767 73 limbo limbo NN 33899 767 74 of of IN 33899 767 75 antiquity antiquity NN 33899 767 76 . . . 33899 768 1 [ [ -LRB- 33899 768 2 Illustration illustration NN 33899 768 3 : : : 33899 768 4 FIG FIG NNP 33899 768 5 . . . 33899 769 1 45.--Beard 45.--beard CD 33899 769 2 's 's POS 33899 769 3 Circulating Circulating NNP 33899 769 4 Water Water NNP 33899 769 5 Tank Tank NNP 33899 769 6 . . . 33899 769 7 ] ] -RRB- 33899 770 1 Among among IN 33899 770 2 other other JJ 33899 770 3 ' ' `` 33899 770 4 special special JJ 33899 770 5 ' ' '' 33899 770 6 lanterns lantern NNS 33899 770 7 should should MD 33899 770 8 be be VB 33899 770 9 mentioned mention VBN 33899 770 10 models model NNS 33899 770 11 made make VBN 33899 770 12 with with IN 33899 770 13 water water NN 33899 770 14 - - HYPH 33899 770 15 cooled cool VBN 33899 770 16 stages stage NNS 33899 770 17 , , , 33899 770 18 for for IN 33899 770 19 use use NN 33899 770 20 with with IN 33899 770 21 very very RB 33899 770 22 delicate delicate JJ 33899 770 23 slides slide NNS 33899 770 24 . . . 33899 771 1 This this DT 33899 771 2 elaboration elaboration NN 33899 771 3 is be VBZ 33899 771 4 not not RB 33899 771 5 necessary necessary JJ 33899 771 6 with with IN 33899 771 7 ordinary ordinary JJ 33899 771 8 slides slide NNS 33899 771 9 and and CC 33899 771 10 illuminants illuminant NNS 33899 771 11 of of IN 33899 771 12 moderate moderate JJ 33899 771 13 power power NN 33899 771 14 , , , 33899 771 15 but but CC 33899 771 16 where where WRB 33899 771 17 very very RB 33899 771 18 delicate delicate JJ 33899 771 19 slides slide NNS 33899 771 20 , , , 33899 771 21 such such JJ 33899 771 22 as as IN 33899 771 23 specimens specimen NNS 33899 771 24 of of IN 33899 771 25 natural natural JJ 33899 771 26 colour colour NN 33899 771 27 photography photography NN 33899 771 28 , , , 33899 771 29 have have VBP 33899 771 30 to to TO 33899 771 31 be be VB 33899 771 32 shown show VBN 33899 771 33 , , , 33899 771 34 it -PRON- PRP 33899 771 35 is be VBZ 33899 771 36 an an DT 33899 771 37 advisable advisable JJ 33899 771 38 precaution precaution NN 33899 771 39 to to TO 33899 771 40 pass pass VB 33899 771 41 the the DT 33899 771 42 beam beam NN 33899 771 43 of of IN 33899 771 44 light light NN 33899 771 45 first first RB 33899 771 46 through through IN 33899 771 47 a a DT 33899 771 48 tank tank NN 33899 771 49 of of IN 33899 771 50 water water NN 33899 771 51 in in IN 33899 771 52 order order NN 33899 771 53 to to TO 33899 771 54 absorb absorb VB 33899 771 55 the the DT 33899 771 56 heat heat NN 33899 771 57 . . . 33899 772 1 Lanterns lantern NNS 33899 772 2 intended intend VBN 33899 772 3 for for IN 33899 772 4 this this DT 33899 772 5 work work NN 33899 772 6 are be VBP 33899 772 7 usually usually RB 33899 772 8 constructed construct VBN 33899 772 9 with with IN 33899 772 10 a a DT 33899 772 11 kind kind NN 33899 772 12 of of IN 33899 772 13 double double JJ 33899 772 14 stage stage NN 33899 772 15 , , , 33899 772 16 a a DT 33899 772 17 glass glass NN 33899 772 18 trough trough NN 33899 772 19 of of IN 33899 772 20 water water NN 33899 772 21 fitting fit VBG 33899 772 22 into into IN 33899 772 23 the the DT 33899 772 24 rear rear JJ 33899 772 25 aperture aperture NN 33899 772 26 and and CC 33899 772 27 the the DT 33899 772 28 slide slide NN 33899 772 29 - - HYPH 33899 772 30 carrier carrier NN 33899 772 31 into into IN 33899 772 32 the the DT 33899 772 33 front front JJ 33899 772 34 one one CD 33899 772 35 . . . 33899 773 1 Such such PDT 33899 773 2 an an DT 33899 773 3 arrangement arrangement NN 33899 773 4 answers answer VBZ 33899 773 5 quite quite RB 33899 773 6 well well RB 33899 773 7 for for IN 33899 773 8 most most JJS 33899 773 9 purposes purpose NNS 33899 773 10 , , , 33899 773 11 but but CC 33899 773 12 for for IN 33899 773 13 extreme extreme JJ 33899 773 14 cases case NNS 33899 773 15 lanterns lantern NNS 33899 773 16 are be VBP 33899 773 17 equipped equip VBN 33899 773 18 with with IN 33899 773 19 a a DT 33899 773 20 trough trough NN 33899 773 21 connected connect VBN 33899 773 22 to to IN 33899 773 23 a a DT 33899 773 24 large large JJ 33899 773 25 outside outside IN 33899 773 26 tank tank NN 33899 773 27 and and CC 33899 773 28 complete complete JJ 33899 773 29 circulatory circulatory JJ 33899 773 30 system system NN 33899 773 31 , , , 33899 773 32 after after IN 33899 773 33 the the DT 33899 773 34 manner manner NN 33899 773 35 of of IN 33899 773 36 the the DT 33899 773 37 cooling cool VBG 33899 773 38 tank tank NN 33899 773 39 of of IN 33899 773 40 a a DT 33899 773 41 gas gas NN 33899 773 42 engine engine NN 33899 773 43 . . . 33899 774 1 Such such PDT 33899 774 2 a a DT 33899 774 3 lantern lantern NN 33899 774 4 , , , 33899 774 5 constructed construct VBN 33899 774 6 by by IN 33899 774 7 Messrs. Messrs. NNS 33899 775 1 Beard Beard NNP 33899 775 2 , , , 33899 775 3 is be VBZ 33899 775 4 illustrated illustrate VBN 33899 775 5 in in IN 33899 775 6 Fig Fig NNP 33899 775 7 . . . 33899 776 1 45 45 CD 33899 776 2 , , , 33899 776 3 and and CC 33899 776 4 it -PRON- PRP 33899 776 5 will will MD 33899 776 6 be be VB 33899 776 7 seen see VBN 33899 776 8 that that IN 33899 776 9 in in IN 33899 776 10 this this DT 33899 776 11 instrument instrument NN 33899 776 12 the the DT 33899 776 13 water water NN 33899 776 14 trough trough NN 33899 776 15 is be VBZ 33899 776 16 placed place VBN 33899 776 17 between between IN 33899 776 18 the the DT 33899 776 19 lenses lense NNS 33899 776 20 of of IN 33899 776 21 the the DT 33899 776 22 condenser condenser NN 33899 776 23 . . . 33899 777 1 { { -LRB- 33899 777 2 76 76 CD 33899 777 3 } } -RRB- 33899 777 4 This this DT 33899 777 5 is be VBZ 33899 777 6 a a DT 33899 777 7 very very RB 33899 777 8 good good JJ 33899 777 9 position position NN 33899 777 10 , , , 33899 777 11 as as IN 33899 777 12 the the DT 33899 777 13 beam beam NN 33899 777 14 of of IN 33899 777 15 light light NN 33899 777 16 at at IN 33899 777 17 this this DT 33899 777 18 point point NN 33899 777 19 is be VBZ 33899 777 20 , , , 33899 777 21 or or CC 33899 777 22 should should MD 33899 777 23 be be VB 33899 777 24 , , , 33899 777 25 parallel parallel NNS 33899 777 26 , , , 33899 777 27 whereas whereas IN 33899 777 28 between between IN 33899 777 29 the the DT 33899 777 30 condenser condenser NN 33899 777 31 and and CC 33899 777 32 the the DT 33899 777 33 slide slide NN 33899 777 34 it -PRON- PRP 33899 777 35 is be VBZ 33899 777 36 convergent convergent NN 33899 777 37 , , , 33899 777 38 and and CC 33899 777 39 therefore therefore RB 33899 777 40 a a DT 33899 777 41 condenser condenser NN 33899 777 42 of of IN 33899 777 43 a a DT 33899 777 44 larger large JJR 33899 777 45 diameter diameter NN 33899 777 46 than than IN 33899 777 47 the the DT 33899 777 48 slide slide NN 33899 777 49 must must MD 33899 777 50 be be VB 33899 777 51 employed employ VBN 33899 777 52 in in IN 33899 777 53 the the DT 33899 777 54 latter latter JJ 33899 777 55 case case NN 33899 777 56 if if IN 33899 777 57 the the DT 33899 777 58 trough trough NN 33899 777 59 is be VBZ 33899 777 60 of of IN 33899 777 61 considerable considerable JJ 33899 777 62 width width NN 33899 777 63 . . . 33899 778 1 While while IN 33899 778 2 dealing deal VBG 33899 778 3 with with IN 33899 778 4 ' ' `` 33899 778 5 Special special JJ 33899 778 6 ' ' '' 33899 778 7 lantern lantern JJ 33899 778 8 bodies body NNS 33899 778 9 , , , 33899 778 10 we -PRON- PRP 33899 778 11 should should MD 33899 778 12 perhaps perhaps RB 33899 778 13 just just RB 33899 778 14 mention mention VB 33899 778 15 here here RB 33899 778 16 the the DT 33899 778 17 numerous numerous JJ 33899 778 18 pattern pattern NN 33899 778 19 lanterns lantern NNS 33899 778 20 made make VBN 33899 778 21 for for IN 33899 778 22 the the DT 33899 778 23 demonstration demonstration NN 33899 778 24 both both DT 33899 778 25 of of IN 33899 778 26 lantern lantern JJ 33899 778 27 slides slide NNS 33899 778 28 and and CC 33899 778 29 of of IN 33899 778 30 Scientific Scientific NNP 33899 778 31 Phenomena Phenomena NNP 33899 778 32 , , , 33899 778 33 such such JJ 33899 778 34 as as IN 33899 778 35 the the DT 33899 778 36 projection projection NN 33899 778 37 of of IN 33899 778 38 insect insect JJ 33899 778 39 life life NN 33899 778 40 or or CC 33899 778 41 other other JJ 33899 778 42 microscopic microscopic JJ 33899 778 43 objects object NNS 33899 778 44 , , , 33899 778 45 polarised polarise VBD 33899 778 46 light light JJ 33899 778 47 experiments experiment NNS 33899 778 48 , , , 33899 778 49 electrical electrical JJ 33899 778 50 apparatus apparatus NN 33899 778 51 , , , 33899 778 52 opaque opaque NNP 33899 778 53 objects object NNS 33899 778 54 , , , 33899 778 55 & & CC 33899 778 56 c. c. NNP 33899 778 57 A a DT 33899 778 58 detailed detailed JJ 33899 778 59 description description NN 33899 778 60 of of IN 33899 778 61 these these DT 33899 778 62 lanterns lantern NNS 33899 778 63 and and CC 33899 778 64 how how WRB 33899 778 65 to to TO 33899 778 66 use use VB 33899 778 67 them -PRON- PRP 33899 778 68 belongs belong VBZ 33899 778 69 to to IN 33899 778 70 the the DT 33899 778 71 second second JJ 33899 778 72 part part NN 33899 778 73 of of IN 33899 778 74 this this DT 33899 778 75 work work NN 33899 778 76 , , , 33899 778 77 as as IN 33899 778 78 also also RB 33899 778 79 does do VBZ 33899 778 80 the the DT 33899 778 81 popular popular JJ 33899 778 82 cinematograph cinematograph NN 33899 778 83 ; ; : 33899 778 84 but but CC 33899 778 85 educational educational JJ 33899 778 86 institutes institute NNS 33899 778 87 , , , 33899 778 88 and and CC 33899 778 89 even even RB 33899 778 90 boys boy NNS 33899 778 91 ' ' POS 33899 778 92 clubs club NNS 33899 778 93 , , , 33899 778 94 when when WRB 33899 778 95 considering consider VBG 33899 778 96 the the DT 33899 778 97 purchase purchase NN 33899 778 98 of of IN 33899 778 99 a a DT 33899 778 100 lantern lantern NN 33899 778 101 , , , 33899 778 102 might may MD 33899 778 103 well well RB 33899 778 104 reflect reflect VB 33899 778 105 whether whether IN 33899 778 106 it -PRON- PRP 33899 778 107 would would MD 33899 778 108 be be VB 33899 778 109 advisable advisable JJ 33899 778 110 to to TO 33899 778 111 spend spend VB 33899 778 112 a a DT 33899 778 113 little little RB 33899 778 114 more more JJR 33899 778 115 money money NN 33899 778 116 in in IN 33899 778 117 the the DT 33899 778 118 acquisition acquisition NN 33899 778 119 of of IN 33899 778 120 an an DT 33899 778 121 instrument instrument NN 33899 778 122 which which WDT 33899 778 123 can can MD 33899 778 124 be be VB 33899 778 125 utilised utilise VBN 33899 778 126 for for IN 33899 778 127 a a DT 33899 778 128 variety variety NN 33899 778 129 of of IN 33899 778 130 purposes purpose NNS 33899 778 131 . . . 33899 779 1 * * NFP 33899 779 2 * * NFP 33899 779 3 * * NFP 33899 779 4 * * NFP 33899 779 5 * * NFP 33899 779 6 CHAPTER chapter NN 33899 779 7 IX ix NN 33899 779 8 LANTERN LANTERN NNP 33899 779 9 BOXES box NNS 33899 779 10 , , , 33899 779 11 STANDS stand NNS 33899 779 12 , , , 33899 779 13 READING reading NN 33899 779 14 LAMPS lamps NN 33899 779 15 , , , 33899 779 16 ETC ETC NNP 33899 779 17 . . . 33899 780 1 Having have VBG 33899 780 2 now now RB 33899 780 3 discussed discuss VBN 33899 780 4 all all PDT 33899 780 5 the the DT 33899 780 6 essential essential JJ 33899 780 7 parts part NNS 33899 780 8 of of IN 33899 780 9 a a DT 33899 780 10 lantern lantern NN 33899 780 11 , , , 33899 780 12 the the DT 33899 780 13 next next JJ 33899 780 14 points point NNS 33899 780 15 to to TO 33899 780 16 be be VB 33899 780 17 considered consider VBN 33899 780 18 are be VBP 33899 780 19 those those DT 33899 780 20 of of IN 33899 780 21 lantern lantern JJ 33899 780 22 boxes box NNS 33899 780 23 and and CC 33899 780 24 stands stand NNS 33899 780 25 . . . 33899 781 1 It -PRON- PRP 33899 781 2 is be VBZ 33899 781 3 best good JJS 33899 781 4 to to TO 33899 781 5 take take VB 33899 781 6 these these DT 33899 781 7 together together RB 33899 781 8 , , , 33899 781 9 as as IN 33899 781 10 more more RBR 33899 781 11 often often RB 33899 781 12 than than IN 33899 781 13 not not RB 33899 781 14 a a DT 33899 781 15 lantern lantern NN 33899 781 16 is be VBZ 33899 781 17 arranged arrange VBN 33899 781 18 to to TO 33899 781 19 stand stand VB 33899 781 20 upon upon IN 33899 781 21 its -PRON- PRP$ 33899 781 22 box box NN 33899 781 23 during during IN 33899 781 24 use use NN 33899 781 25 , , , 33899 781 26 and and CC 33899 781 27 the the DT 33899 781 28 plan plan NN 33899 781 29 is be VBZ 33899 781 30 both both CC 33899 781 31 convenient convenient JJ 33899 781 32 and and CC 33899 781 33 simple simple JJ 33899 781 34 . . . 33899 782 1 The the DT 33899 782 2 whole whole JJ 33899 782 3 question question NN 33899 782 4 is be VBZ 33899 782 5 one one CD 33899 782 6 to to TO 33899 782 7 be be VB 33899 782 8 settled settle VBN 33899 782 9 upon upon IN 33899 782 10 its -PRON- PRP$ 33899 782 11 own own JJ 33899 782 12 merits merit NNS 33899 782 13 in in IN 33899 782 14 each each DT 33899 782 15 individual individual JJ 33899 782 16 case case NN 33899 782 17 . . . 33899 783 1 Sometimes sometimes RB 33899 783 2 neither neither DT 33899 783 3 box box NN 33899 783 4 nor nor CC 33899 783 5 stand stand NN 33899 783 6 is be VBZ 33899 783 7 wanted want VBN 33899 783 8 at at RB 33899 783 9 all all RB 33899 783 10 . . . 33899 784 1 The the DT 33899 784 2 lantern lantern NN 33899 784 3 is be VBZ 33899 784 4 put put VBN 33899 784 5 away away RB 33899 784 6 into into IN 33899 784 7 a a DT 33899 784 8 locked lock VBN 33899 784 9 - - HYPH 33899 784 10 up up RP 33899 784 11 cupboard cupboard NN 33899 784 12 or or CC 33899 784 13 other other JJ 33899 784 14 safe safe JJ 33899 784 15 place place NN 33899 784 16 , , , 33899 784 17 and and CC 33899 784 18 used use VBN 33899 784 19 upon upon IN 33899 784 20 a a DT 33899 784 21 permanent permanent JJ 33899 784 22 support support NN 33899 784 23 or or CC 33899 784 24 ( ( -LRB- 33899 784 25 as as IN 33899 784 26 is be VBZ 33899 784 27 often often RB 33899 784 28 the the DT 33899 784 29 case case NN 33899 784 30 in in IN 33899 784 31 a a DT 33899 784 32 church church NN 33899 784 33 ) ) -RRB- 33899 784 34 from from IN 33899 784 35 a a DT 33899 784 36 gallery gallery NN 33899 784 37 at at IN 33899 784 38 the the DT 33899 784 39 back back NN 33899 784 40 . . . 33899 785 1 { { -LRB- 33899 785 2 77 77 CD 33899 785 3 } } -RRB- 33899 785 4 In in IN 33899 785 5 most most JJS 33899 785 6 cases case NNS 33899 785 7 , , , 33899 785 8 however however RB 33899 785 9 , , , 33899 785 10 a a DT 33899 785 11 box box NN 33899 785 12 of of IN 33899 785 13 some some DT 33899 785 14 sort sort NN 33899 785 15 is be VBZ 33899 785 16 desirable desirable JJ 33899 785 17 , , , 33899 785 18 and and CC 33899 785 19 the the DT 33899 785 20 two two CD 33899 785 21 main main JJ 33899 785 22 considerations consideration NNS 33899 785 23 are be VBP 33899 785 24 strength strength NN 33899 785 25 and and CC 33899 785 26 simplicity simplicity NN 33899 785 27 . . . 33899 786 1 All all DT 33899 786 2 patent patent NN 33899 786 3 arrangements arrangement NNS 33899 786 4 , , , 33899 786 5 such such JJ 33899 786 6 , , , 33899 786 7 for for IN 33899 786 8 example example NN 33899 786 9 , , , 33899 786 10 as as IN 33899 786 11 those those DT 33899 786 12 in in IN 33899 786 13 which which WDT 33899 786 14 the the DT 33899 786 15 sides side NNS 33899 786 16 of of IN 33899 786 17 the the DT 33899 786 18 box box NN 33899 786 19 fall fall VBP 33899 786 20 down down RP 33899 786 21 and and CC 33899 786 22 provide provide VB 33899 786 23 trays tray NNS 33899 786 24 for for IN 33899 786 25 the the DT 33899 786 26 slides slide NNS 33899 786 27 , , , 33899 786 28 are be VBP 33899 786 29 beautiful beautiful JJ 33899 786 30 in in IN 33899 786 31 theory theory NN 33899 786 32 , , , 33899 786 33 but but CC 33899 786 34 can can MD 33899 786 35 not not RB 33899 786 36 be be VB 33899 786 37 recommended recommend VBN 33899 786 38 in in IN 33899 786 39 practice practice NN 33899 786 40 . . . 33899 787 1 A a DT 33899 787 2 good good JJ 33899 787 3 , , , 33899 787 4 simple simple JJ 33899 787 5 and and CC 33899 787 6 substantial substantial JJ 33899 787 7 box box NN 33899 787 8 is be VBZ 33899 787 9 what what WP 33899 787 10 is be VBZ 33899 787 11 required require VBN 33899 787 12 , , , 33899 787 13 preferably preferably RB 33899 787 14 painted paint VBN 33899 787 15 black black JJ 33899 787 16 , , , 33899 787 17 and and CC 33899 787 18 provided provide VBN 33899 787 19 with with IN 33899 787 20 strong strong JJ 33899 787 21 handles handle NNS 33899 787 22 . . . 33899 788 1 One one CD 33899 788 2 addition addition NN 33899 788 3 may may MD 33899 788 4 be be VB 33899 788 5 permitted permit VBN 33899 788 6 , , , 33899 788 7 viz viz NN 33899 788 8 . . . 33899 789 1 a a DT 33899 789 2 tilting tilting NN 33899 789 3 top top NN 33899 789 4 . . . 33899 790 1 Some some DT 33899 790 2 means mean VBZ 33899 790 3 for for IN 33899 790 4 tilting tilt VBG 33899 790 5 the the DT 33899 790 6 lantern lantern NN 33899 790 7 is be VBZ 33899 790 8 always always RB 33899 790 9 advisable advisable JJ 33899 790 10 , , , 33899 790 11 as as IN 33899 790 12 it -PRON- PRP 33899 790 13 is be VBZ 33899 790 14 seldom seldom RB 33899 790 15 convenient convenient JJ 33899 790 16 to to TO 33899 790 17 raise raise VB 33899 790 18 the the DT 33899 790 19 instrument instrument NN 33899 790 20 to to IN 33899 790 21 the the DT 33899 790 22 level level NN 33899 790 23 of of IN 33899 790 24 the the DT 33899 790 25 centre centre NN 33899 790 26 of of IN 33899 790 27 the the DT 33899 790 28 screen screen NN 33899 790 29 , , , 33899 790 30 and and CC 33899 790 31 a a DT 33899 790 32 slight slight JJ 33899 790 33 upward upward JJ 33899 790 34 elevation elevation NN 33899 790 35 does do VBZ 33899 790 36 not not RB 33899 790 37 appreciably appreciably RB 33899 790 38 distort distort VB 33899 790 39 the the DT 33899 790 40 image image NN 33899 790 41 . . . 33899 791 1 This this DT 33899 791 2 arrangement arrangement NN 33899 791 3 for for IN 33899 791 4 tilting tilting NN 33899 791 5 may may MD 33899 791 6 be be VB 33899 791 7 either either CC 33899 791 8 embodied embody VBN 33899 791 9 in in IN 33899 791 10 the the DT 33899 791 11 lantern lantern NN 33899 791 12 itself -PRON- PRP 33899 791 13 , , , 33899 791 14 as as IN 33899 791 15 for for IN 33899 791 16 instance instance NN 33899 791 17 in in IN 33899 791 18 the the DT 33899 791 19 instrument instrument NN 33899 791 20 shown show VBN 33899 791 21 in in IN 33899 791 22 Fig Fig NNP 33899 791 23 . . . 33899 792 1 42 42 CD 33899 792 2 , , , 33899 792 3 or or CC 33899 792 4 may may MD 33899 792 5 be be VB 33899 792 6 provided provide VBN 33899 792 7 for for IN 33899 792 8 on on IN 33899 792 9 the the DT 33899 792 10 box box NN 33899 792 11 or or CC 33899 792 12 on on IN 33899 792 13 the the DT 33899 792 14 stand stand NN 33899 792 15 , , , 33899 792 16 if if IN 33899 792 17 a a DT 33899 792 18 stand stand NN 33899 792 19 is be VBZ 33899 792 20 used use VBN 33899 792 21 . . . 33899 793 1 It -PRON- PRP 33899 793 2 is be VBZ 33899 793 3 , , , 33899 793 4 perhaps perhaps RB 33899 793 5 , , , 33899 793 6 an an DT 33899 793 7 elaboration elaboration NN 33899 793 8 that that WDT 33899 793 9 may may MD 33899 793 10 be be VB 33899 793 11 regarded regard VBN 33899 793 12 as as IN 33899 793 13 not not RB 33899 793 14 strictly strictly RB 33899 793 15 necessary necessary JJ 33899 793 16 , , , 33899 793 17 as as IN 33899 793 18 a a DT 33899 793 19 book book NN 33899 793 20 or or CC 33899 793 21 two two CD 33899 793 22 or or CC 33899 793 23 other other JJ 33899 793 24 article article NN 33899 793 25 may may MD 33899 793 26 be be VB 33899 793 27 placed place VBN 33899 793 28 under under IN 33899 793 29 the the DT 33899 793 30 lantern lantern JJ 33899 793 31 base base NN 33899 793 32 as as IN 33899 793 33 required require VBN 33899 793 34 ; ; : 33899 793 35 but but CC 33899 793 36 a a DT 33899 793 37 tilting tilting NN 33899 793 38 arrangement arrangement NN 33899 793 39 is be VBZ 33899 793 40 so so RB 33899 793 41 convenient convenient JJ 33899 793 42 that that IN 33899 793 43 it -PRON- PRP 33899 793 44 can can MD 33899 793 45 be be VB 33899 793 46 strongly strongly RB 33899 793 47 recommended recommend VBN 33899 793 48 , , , 33899 793 49 and and CC 33899 793 50 the the DT 33899 793 51 addition addition NN 33899 793 52 is be VBZ 33899 793 53 not not RB 33899 793 54 expensive expensive JJ 33899 793 55 . . . 33899 794 1 For for IN 33899 794 2 large large JJ 33899 794 3 , , , 33899 794 4 long long JJ 33899 794 5 - - HYPH 33899 794 6 range range NN 33899 794 7 lanterns lantern NNS 33899 794 8 a a DT 33899 794 9 strong strong JJ 33899 794 10 deal deal NN 33899 794 11 box box NN 33899 794 12 , , , 33899 794 13 on on IN 33899 794 14 which which WDT 33899 794 15 the the DT 33899 794 16 lantern lantern NN 33899 794 17 can can MD 33899 794 18 stand stand VB 33899 794 19 , , , 33899 794 20 is be VBZ 33899 794 21 usually usually RB 33899 794 22 all all DT 33899 794 23 that that WDT 33899 794 24 it -PRON- PRP 33899 794 25 is be VBZ 33899 794 26 desirable desirable JJ 33899 794 27 to to TO 33899 794 28 purchase purchase VB 33899 794 29 in in IN 33899 794 30 the the DT 33899 794 31 way way NN 33899 794 32 of of IN 33899 794 33 a a DT 33899 794 34 support support NN 33899 794 35 . . . 33899 795 1 A a DT 33899 795 2 good good JJ 33899 795 3 solid solid JJ 33899 795 4 table table NN 33899 795 5 can can MD 33899 795 6 usually usually RB 33899 795 7 be be VB 33899 795 8 found find VBN 33899 795 9 , , , 33899 795 10 which which WDT 33899 795 11 will will MD 33899 795 12 do do VB 33899 795 13 all all PDT 33899 795 14 the the DT 33899 795 15 rest rest NN 33899 795 16 , , , 33899 795 17 as as IN 33899 795 18 it -PRON- PRP 33899 795 19 must must MD 33899 795 20 be be VB 33899 795 21 remembered remember VBN 33899 795 22 that that IN 33899 795 23 a a DT 33899 795 24 slight slight JJ 33899 795 25 tilt tilt NN 33899 795 26 at at IN 33899 795 27 a a DT 33899 795 28 long long JJ 33899 795 29 range range NN 33899 795 30 means mean VBZ 33899 795 31 a a DT 33899 795 32 good good JJ 33899 795 33 deal deal NN 33899 795 34 of of IN 33899 795 35 total total JJ 33899 795 36 elevation elevation NN 33899 795 37 . . . 33899 796 1 Where where WRB 33899 796 2 this this DT 33899 796 3 is be VBZ 33899 796 4 not not RB 33899 796 5 procurable procurable JJ 33899 796 6 a a DT 33899 796 7 stand stand NN 33899 796 8 must must MD 33899 796 9 be be VB 33899 796 10 provided provide VBN 33899 796 11 , , , 33899 796 12 and and CC 33899 796 13 this this DT 33899 796 14 for for IN 33899 796 15 a a DT 33899 796 16 large large JJ 33899 796 17 lantern lantern NN 33899 796 18 should should MD 33899 796 19 be be VB 33899 796 20 strong strong JJ 33899 796 21 and and CC 33899 796 22 rigid rigid JJ 33899 796 23 . . . 33899 797 1 Anything anything NN 33899 797 2 in in IN 33899 797 3 the the DT 33899 797 4 way way NN 33899 797 5 of of IN 33899 797 6 a a DT 33899 797 7 collapsible collapsible JJ 33899 797 8 tripod tripod NN 33899 797 9 should should MD 33899 797 10 be be VB 33899 797 11 avoided avoid VBN 33899 797 12 , , , 33899 797 13 but but CC 33899 797 14 such such PDT 33899 797 15 an an DT 33899 797 16 arrangement arrangement NN 33899 797 17 as as IN 33899 797 18 Fig Fig NNP 33899 797 19 . . . 33899 798 1 46 46 CD 33899 798 2 is be VBZ 33899 798 3 quite quite RB 33899 798 4 good good JJ 33899 798 5 and and CC 33899 798 6 rigid rigid JJ 33899 798 7 enough enough RB 33899 798 8 for for IN 33899 798 9 all all DT 33899 798 10 practical practical JJ 33899 798 11 purposes purpose NNS 33899 798 12 . . . 33899 799 1 For for IN 33899 799 2 a a DT 33899 799 3 _ _ NNP 33899 799 4 small small JJ 33899 799 5 _ _ NNP 33899 799 6 lantern lantern VB 33899 799 7 a a DT 33899 799 8 tripod tripod NN 33899 799 9 stand stand NN 33899 799 10 is be VBZ 33899 799 11 quite quite RB 33899 799 12 suitable suitable JJ 33899 799 13 , , , 33899 799 14 though though IN 33899 799 15 care care NN 33899 799 16 must must MD 33899 799 17 be be VB 33899 799 18 taken take VBN 33899 799 19 that that IN 33899 799 20 one one CD 33899 799 21 of of IN 33899 799 22 the the DT 33899 799 23 legs leg NNS 33899 799 24 does do VBZ 33899 799 25 not not RB 33899 799 26 get get VB 33899 799 27 kicked kick VBN 33899 799 28 , , , 33899 799 29 either either CC 33899 799 30 by by IN 33899 799 31 accident accident NN 33899 799 32 or or CC 33899 799 33 design design NN 33899 799 34 , , , 33899 799 35 or or CC 33899 799 36 the the DT 33899 799 37 result result NN 33899 799 38 may may MD 33899 799 39 be be VB 33899 799 40 a a DT 33899 799 41 catastrophe catastrophe NN 33899 799 42 . . . 33899 800 1 { { -LRB- 33899 800 2 78 78 CD 33899 800 3 } } -RRB- 33899 800 4 _ _ NNP 33899 800 5 Slide Slide NNP 33899 800 6 Boxes._--On Boxes._--On VBZ 33899 800 7 this this DT 33899 800 8 subject subject NN 33899 800 9 not not RB 33899 800 10 much much JJ 33899 800 11 need need NN 33899 800 12 be be VB 33899 800 13 said say VBN 33899 800 14 . . . 33899 801 1 The the DT 33899 801 2 variety variety NN 33899 801 3 of of IN 33899 801 4 patterns pattern NNS 33899 801 5 on on IN 33899 801 6 the the DT 33899 801 7 market market NN 33899 801 8 is be VBZ 33899 801 9 endless endless JJ 33899 801 10 , , , 33899 801 11 some some DT 33899 801 12 being be VBG 33899 801 13 designed design VBN 33899 801 14 from from IN 33899 801 15 the the DT 33899 801 16 point point NN 33899 801 17 of of IN 33899 801 18 view view NN 33899 801 19 of of IN 33899 801 20 safe safe JJ 33899 801 21 transit transit NN 33899 801 22 by by IN 33899 801 23 post post NN 33899 801 24 , , , 33899 801 25 others other NNS 33899 801 26 for for IN 33899 801 27 convenience convenience NN 33899 801 28 of of IN 33899 801 29 storage storage NN 33899 801 30 and and CC 33899 801 31 classification classification NN 33899 801 32 . . . 33899 802 1 It -PRON- PRP 33899 802 2 is be VBZ 33899 802 3 essentially essentially RB 33899 802 4 a a DT 33899 802 5 case case NN 33899 802 6 where where WRB 33899 802 7 each each DT 33899 802 8 individual individual JJ 33899 802 9 user user NN 33899 802 10 must must MD 33899 802 11 use use VB 33899 802 12 his -PRON- PRP$ 33899 802 13 or or CC 33899 802 14 her -PRON- PRP$ 33899 802 15 taste taste NN 33899 802 16 , , , 33899 802 17 and and CC 33899 802 18 in in IN 33899 802 19 any any DT 33899 802 20 case case NN 33899 802 21 the the DT 33899 802 22 question question NN 33899 802 23 of of IN 33899 802 24 the the DT 33899 802 25 box box NN 33899 802 26 is be VBZ 33899 802 27 one one CD 33899 802 28 for for IN 33899 802 29 the the DT 33899 802 30 owner owner NN 33899 802 31 of of IN 33899 802 32 the the DT 33899 802 33 slides slide NNS 33899 802 34 rather rather RB 33899 802 35 than than IN 33899 802 36 for for IN 33899 802 37 the the DT 33899 802 38 lanternist lanternist NN 33899 802 39 . . . 33899 803 1 [ [ -LRB- 33899 803 2 Illustration illustration NN 33899 803 3 : : : 33899 803 4 FIG FIG NNP 33899 803 5 . . . 33899 804 1 46.--Quadruple 46.--quadruple CD 33899 804 2 Lantern Lantern NNP 33899 804 3 Stand Stand NNP 33899 804 4 . . . 33899 804 5 ] ] -RRB- 33899 805 1 READING reading NN 33899 805 2 - - HYPH 33899 805 3 DESKS desk NNS 33899 805 4 , , , 33899 805 5 LAMPS lamps NN 33899 805 6 , , , 33899 805 7 AND and CC 33899 805 8 SIGNALS.--Some signals.--some JJ 33899 805 9 form form NN 33899 805 10 of of IN 33899 805 11 reading read VBG 33899 805 12 lamp lamp NN 33899 805 13 for for IN 33899 805 14 the the DT 33899 805 15 lecturer lecturer NN 33899 805 16 is be VBZ 33899 805 17 generally generally RB 33899 805 18 considered consider VBN 33899 805 19 to to TO 33899 805 20 be be VB 33899 805 21 part part NN 33899 805 22 of of IN 33899 805 23 a a DT 33899 805 24 lanternist lanternist NN 33899 805 25 's 's POS 33899 805 26 equipment equipment NN 33899 805 27 , , , 33899 805 28 and and CC 33899 805 29 the the DT 33899 805 30 most most RBS 33899 805 31 usual usual JJ 33899 805 32 pattern pattern NN 33899 805 33 is be VBZ 33899 805 34 fitted fit VBN 33899 805 35 with with IN 33899 805 36 a a DT 33899 805 37 candle candle NN 33899 805 38 , , , 33899 805 39 after after IN 33899 805 40 the the DT 33899 805 41 manner manner NN 33899 805 42 of of IN 33899 805 43 a a DT 33899 805 44 carriage carriage NN 33899 805 45 lamp lamp NN 33899 805 46 , , , 33899 805 47 or or CC 33899 805 48 else else RB 33899 805 49 constructed construct VBN 33899 805 50 to to TO 33899 805 51 burn burn VB 33899 805 52 colza colza JJ 33899 805 53 or or CC 33899 805 54 other other JJ 33899 805 55 vegetable vegetable NN 33899 805 56 oil oil NN 33899 805 57 , , , 33899 805 58 such such JJ 33899 805 59 as as IN 33899 805 60 supplied supply VBN 33899 805 61 for for IN 33899 805 62 cycle cycle NN 33899 805 63 lamps lamp NNS 33899 805 64 . . . 33899 806 1 Oil oil NN 33899 806 2 gives give VBZ 33899 806 3 the the DT 33899 806 4 brighter bright JJR 33899 806 5 light light NN 33899 806 6 , , , 33899 806 7 but but CC 33899 806 8 is be VBZ 33899 806 9 apt apt JJ 33899 806 10 to to TO 33899 806 11 get get VB 33899 806 12 spilled spill VBN 33899 806 13 in in IN 33899 806 14 transit transit NN 33899 806 15 , , , 33899 806 16 hence hence RB 33899 806 17 a a DT 33899 806 18 candle candle NN 33899 806 19 lamp lamp NN 33899 806 20 is be VBZ 33899 806 21 the the DT 33899 806 22 more more JJR 33899 806 23 { { -LRB- 33899 806 24 79 79 CD 33899 806 25 } } -RRB- 33899 806 26 convenient convenient JJ 33899 806 27 for for IN 33899 806 28 a a DT 33899 806 29 travelling travel VBG 33899 806 30 lecturer lecturer NN 33899 806 31 , , , 33899 806 32 while while IN 33899 806 33 oil oil NN 33899 806 34 is be VBZ 33899 806 35 to to TO 33899 806 36 be be VB 33899 806 37 preferred prefer VBN 33899 806 38 if if IN 33899 806 39 transport transport NN 33899 806 40 is be VBZ 33899 806 41 not not RB 33899 806 42 a a DT 33899 806 43 factor factor NN 33899 806 44 to to TO 33899 806 45 be be VB 33899 806 46 considered consider VBN 33899 806 47 . . . 33899 807 1 These these DT 33899 807 2 lamps lamp NNS 33899 807 3 are be VBP 33899 807 4 usually usually RB 33899 807 5 constructed construct VBN 33899 807 6 with with IN 33899 807 7 a a DT 33899 807 8 red red JJ 33899 807 9 flashing flashing NN 33899 807 10 signal signal NN 33899 807 11 at at IN 33899 807 12 the the DT 33899 807 13 rear rear NN 33899 807 14 , , , 33899 807 15 actuated actuate VBN 33899 807 16 by by IN 33899 807 17 a a DT 33899 807 18 simple simple JJ 33899 807 19 lever lever NN 33899 807 20 , , , 33899 807 21 by by IN 33899 807 22 which which WDT 33899 807 23 the the DT 33899 807 24 lecturer lecturer NN 33899 807 25 can can MD 33899 807 26 communicate communicate VB 33899 807 27 his -PRON- PRP$ 33899 807 28 wish wish NN 33899 807 29 for for IN 33899 807 30 a a DT 33899 807 31 change change NN 33899 807 32 of of IN 33899 807 33 slide slide NN 33899 807 34 , , , 33899 807 35 & & CC 33899 807 36 c. c. NNP 33899 807 37 , , , 33899 807 38 to to IN 33899 807 39 the the DT 33899 807 40 lanternist lanternist NN 33899 807 41 ( ( -LRB- 33899 807 42 Fig fig NN 33899 807 43 . . . 33899 808 1 47 47 CD 33899 808 2 ) ) -RRB- 33899 808 3 . . . 33899 809 1 [ [ -LRB- 33899 809 2 Illustration illustration NN 33899 809 3 : : : 33899 809 4 FIG FIG NNP 33899 809 5 . . . 33899 810 1 47.--Reading 47.--reading CD 33899 810 2 Lamp Lamp NNP 33899 810 3 . . . 33899 810 4 ] ] -RRB- 33899 811 1 There there EX 33899 811 2 are be VBP 33899 811 3 various various JJ 33899 811 4 other other JJ 33899 811 5 devices device NNS 33899 811 6 used use VBN 33899 811 7 for for IN 33899 811 8 the the DT 33899 811 9 same same JJ 33899 811 10 purpose purpose NN 33899 811 11 , , , 33899 811 12 such such JJ 33899 811 13 as as IN 33899 811 14 a a DT 33899 811 15 castanet castanet NN 33899 811 16 , , , 33899 811 17 to to TO 33899 811 18 be be VB 33899 811 19 held hold VBN 33899 811 20 in in IN 33899 811 21 the the DT 33899 811 22 lecturer lecturer NN 33899 811 23 's 's POS 33899 811 24 hand hand NN 33899 811 25 and and CC 33899 811 26 clicked click VBD 33899 811 27 when when WRB 33899 811 28 necessary necessary JJ 33899 811 29 , , , 33899 811 30 an an DT 33899 811 31 electric electric JJ 33899 811 32 bell bell NN 33899 811 33 to to TO 33899 811 34 ring ring VB 33899 811 35 in in IN 33899 811 36 the the DT 33899 811 37 lantern lantern NNP 33899 811 38 box box NNP 33899 811 39 , , , 33899 811 40 & & CC 33899 811 41 c. c. NNP 33899 811 42 If if IN 33899 811 43 this this DT 33899 811 44 latter latter NN 33899 811 45 is be VBZ 33899 811 46 used use VBN 33899 811 47 it -PRON- PRP 33899 811 48 is be VBZ 33899 811 49 usual usual JJ 33899 811 50 to to TO 33899 811 51 remove remove VB 33899 811 52 the the DT 33899 811 53 gong gong NN 33899 811 54 , , , 33899 811 55 the the DT 33899 811 56 buzz buzz NNP 33899 811 57 of of IN 33899 811 58 the the DT 33899 811 59 hammer hammer NN 33899 811 60 being be VBG 33899 811 61 sufficiently sufficiently RB 33899 811 62 loud loud JJ 33899 811 63 without without IN 33899 811 64 it -PRON- PRP 33899 811 65 . . . 33899 812 1 Some some DT 33899 812 2 lecturers lecturer NNS 33899 812 3 again again RB 33899 812 4 prefer prefer VBP 33899 812 5 to to TO 33899 812 6 use use VB 33899 812 7 no no DT 33899 812 8 such such JJ 33899 812 9 apparatus apparatus NN 33899 812 10 at at RB 33899 812 11 all all RB 33899 812 12 , , , 33899 812 13 but but CC 33899 812 14 simply simply RB 33899 812 15 to to TO 33899 812 16 say say VB 33899 812 17 ' ' `` 33899 812 18 Next next JJ 33899 812 19 slide slide NN 33899 812 20 ' ' '' 33899 812 21 as as IN 33899 812 22 required require VBN 33899 812 23 , , , 33899 812 24 or or CC 33899 812 25 to to TO 33899 812 26 tap tap VB 33899 812 27 on on IN 33899 812 28 the the DT 33899 812 29 floor floor NN 33899 812 30 with with IN 33899 812 31 a a DT 33899 812 32 pointer pointer NN 33899 812 33 , , , 33899 812 34 and and CC 33899 812 35 the the DT 33899 812 36 choice choice NN 33899 812 37 of of IN 33899 812 38 a a DT 33899 812 39 suitable suitable JJ 33899 812 40 means mean NNS 33899 812 41 of of IN 33899 812 42 communication communication NN 33899 812 43 between between IN 33899 812 44 lecturer lecturer NN 33899 812 45 and and CC 33899 812 46 lanternist lanternist NN 33899 812 47 must must MD 33899 812 48 be be VB 33899 812 49 largely largely RB 33899 812 50 a a DT 33899 812 51 matter matter NN 33899 812 52 of of IN 33899 812 53 individual individual JJ 33899 812 54 selection selection NN 33899 812 55 . . . 33899 813 1 More more RBR 33899 813 2 elaborate elaborate JJ 33899 813 3 _ _ NNP 33899 813 4 reading reading NN 33899 813 5 - - HYPH 33899 813 6 desks desk NNS 33899 813 7 _ _ NNP 33899 813 8 are be VBP 33899 813 9 also also RB 33899 813 10 supplied supply VBN 33899 813 11 by by IN 33899 813 12 most most JJS 33899 813 13 makers maker NNS 33899 813 14 , , , 33899 813 15 but but CC 33899 813 16 here here RB 33899 813 17 again again RB 33899 813 18 judgment judgment NN 33899 813 19 must must MD 33899 813 20 largely largely RB 33899 813 21 come come VB 33899 813 22 into into IN 33899 813 23 play play NN 33899 813 24 in in IN 33899 813 25 what what WP 33899 813 26 is be VBZ 33899 813 27 hardly hardly RB 33899 813 28 a a DT 33899 813 29 technical technical JJ 33899 813 30 matter matter NN 33899 813 31 . . . 33899 814 1 * * NFP 33899 814 2 * * NFP 33899 814 3 * * NFP 33899 814 4 * * NFP 33899 814 5 * * NFP 33899 814 6 CHAPTER chapter NN 33899 814 7 X x NN 33899 814 8 SCREENS screen NNS 33899 814 9 AND and CC 33899 814 10 SCREEN SCREEN NNP 33899 814 11 STANDS stand VBZ 33899 814 12 The the DT 33899 814 13 best good JJS 33899 814 14 of of IN 33899 814 15 all all DT 33899 814 16 screens screen NNS 33899 814 17 for for IN 33899 814 18 lantern lantern JJ 33899 814 19 purposes purpose NNS 33899 814 20 is be VBZ 33899 814 21 undoubtedly undoubtedly RB 33899 814 22 a a DT 33899 814 23 smooth smooth JJ 33899 814 24 whitewashed whitewashed JJ 33899 814 25 wall wall NN 33899 814 26 , , , 33899 814 27 and and CC 33899 814 28 this this DT 33899 814 29 is be VBZ 33899 814 30 now now RB 33899 814 31 provided provide VBN 33899 814 32 in in IN 33899 814 33 many many JJ 33899 814 34 halls hall NNS 33899 814 35 where where WRB 33899 814 36 lantern lantern JJ 33899 814 37 exhibitions exhibition NNS 33899 814 38 are be VBP 33899 814 39 usual usual JJ 33899 814 40 . . . 33899 815 1 In in IN 33899 815 2 places place NNS 33899 815 3 where where WRB 33899 815 4 this this DT 33899 815 5 is be VBZ 33899 815 6 not not RB 33899 815 7 practicable practicable JJ 33899 815 8 the the DT 33899 815 9 next next JJ 33899 815 10 best good JJS 33899 815 11 substitute substitute NN 33899 815 12 is be VBZ 33899 815 13 a a DT 33899 815 14 canvas canvas NN 33899 815 15 { { -LRB- 33899 815 16 80 80 CD 33899 815 17 } } -RRB- 33899 815 18 screen screen NN 33899 815 19 , , , 33899 815 20 which which WDT 33899 815 21 rolls roll VBZ 33899 815 22 up up RP 33899 815 23 and and CC 33899 815 24 down down RB 33899 815 25 ( ( -LRB- 33899 815 26 Fig fig NN 33899 815 27 . . . 33899 816 1 48 48 CD 33899 816 2 ) ) -RRB- 33899 816 3 . . . 33899 817 1 This this DT 33899 817 2 can can MD 33899 817 3 be be VB 33899 817 4 obtained obtain VBN 33899 817 5 from from IN 33899 817 6 any any DT 33899 817 7 good good JJ 33899 817 8 maker maker NN 33899 817 9 , , , 33899 817 10 but but CC 33899 817 11 again again RB 33899 817 12 can can MD 33899 817 13 only only RB 33899 817 14 really really RB 33899 817 15 be be VB 33899 817 16 used use VBN 33899 817 17 as as IN 33899 817 18 a a DT 33899 817 19 _ _ NNP 33899 817 20 fixture fixture NN 33899 817 21 _ _ NNP 33899 817 22 in in IN 33899 817 23 the the DT 33899 817 24 hall hall NN 33899 817 25 where where WRB 33899 817 26 the the DT 33899 817 27 lantern lantern NN 33899 817 28 is be VBZ 33899 817 29 to to TO 33899 817 30 be be VB 33899 817 31 used use VBN 33899 817 32 . . . 33899 818 1 It -PRON- PRP 33899 818 2 can can MD 33899 818 3 , , , 33899 818 4 however however RB 33899 818 5 , , , 33899 818 6 be be VB 33899 818 7 fitted fit VBN 33899 818 8 into into IN 33899 818 9 a a DT 33899 818 10 wooden wooden JJ 33899 818 11 box box NN 33899 818 12 which which WDT 33899 818 13 can can MD 33899 818 14 be be VB 33899 818 15 painted paint VBN 33899 818 16 or or CC 33899 818 17 varnished varnish VBN 33899 818 18 to to TO 33899 818 19 suit suit VB 33899 818 20 the the DT 33899 818 21 other other JJ 33899 818 22 architecture architecture NN 33899 818 23 , , , 33899 818 24 and and CC 33899 818 25 the the DT 33899 818 26 provision provision NN 33899 818 27 of of IN 33899 818 28 such such PDT 33899 818 29 a a DT 33899 818 30 screen screen NN 33899 818 31 is be VBZ 33899 818 32 to to TO 33899 818 33 be be VB 33899 818 34 strongly strongly RB 33899 818 35 recommended recommend VBN 33899 818 36 whenever whenever WRB 33899 818 37 possible possible JJ 33899 818 38 . . . 33899 819 1 If if IN 33899 819 2 portability portability NN 33899 819 3 is be VBZ 33899 819 4 required require VBN 33899 819 5 , , , 33899 819 6 a a DT 33899 819 7 linen linen NN 33899 819 8 or or CC 33899 819 9 calico calico NN 33899 819 10 sheet sheet NN 33899 819 11 that that WDT 33899 819 12 can can MD 33899 819 13 be be VB 33899 819 14 folded fold VBN 33899 819 15 up up RP 33899 819 16 is be VBZ 33899 819 17 necessary necessary JJ 33899 819 18 , , , 33899 819 19 but but CC 33899 819 20 this this DT 33899 819 21 can can MD 33899 819 22 never never RB 33899 819 23 be be VB 33899 819 24 hung hang VBN 33899 819 25 absolutely absolutely RB 33899 819 26 flat flat JJ 33899 819 27 , , , 33899 819 28 and and CC 33899 819 29 also also RB 33899 819 30 loses lose VBZ 33899 819 31 a a DT 33899 819 32 considerable considerable JJ 33899 819 33 amount amount NN 33899 819 34 of of IN 33899 819 35 light light NN 33899 819 36 by by IN 33899 819 37 transmission transmission NN 33899 819 38 . . . 33899 820 1 [ [ -LRB- 33899 820 2 Illustration illustration NN 33899 820 3 : : : 33899 820 4 FIG FIG NNP 33899 820 5 . . . 33899 821 1 48.--Roller 48.--roller CD 33899 821 2 Screen Screen NNP 33899 821 3 . . . 33899 821 4 ] ] -RRB- 33899 822 1 A a DT 33899 822 2 so so RB 33899 822 3 - - HYPH 33899 822 4 called call VBN 33899 822 5 ' ' `` 33899 822 6 transparent transparent JJ 33899 822 7 ' ' '' 33899 822 8 sheet sheet NN 33899 822 9 is be VBZ 33899 822 10 made make VBN 33899 822 11 of of IN 33899 822 12 very very RB 33899 822 13 thin thin JJ 33899 822 14 linen linen NN 33899 822 15 , , , 33899 822 16 and and CC 33899 822 17 intended intend VBN 33899 822 18 to to TO 33899 822 19 work work VB 33899 822 20 with with IN 33899 822 21 the the DT 33899 822 22 lantern lantern JJ 33899 822 23 _ _ NNP 33899 822 24 behind behind IN 33899 822 25 _ _ NNP 33899 822 26 it -PRON- PRP 33899 822 27 , , , 33899 822 28 showing show VBG 33899 822 29 the the DT 33899 822 30 picture picture NN 33899 822 31 through through IN 33899 822 32 the the DT 33899 822 33 linen linen NN 33899 822 34 to to IN 33899 822 35 the the DT 33899 822 36 audience audience NN 33899 822 37 on on IN 33899 822 38 the the DT 33899 822 39 other other JJ 33899 822 40 side side NN 33899 822 41 , , , 33899 822 42 but but CC 33899 822 43 this this DT 33899 822 44 is be VBZ 33899 822 45 seldom seldom RB 33899 822 46 used use VBN 33899 822 47 except except IN 33899 822 48 in in IN 33899 822 49 the the DT 33899 822 50 open open JJ 33899 822 51 air air NN 33899 822 52 for for IN 33899 822 53 religious religious JJ 33899 822 54 or or CC 33899 822 55 political political JJ 33899 822 56 meetings meeting NNS 33899 822 57 , , , 33899 822 58 & & CC 33899 822 59 c. c. NNP 33899 822 60 An an DT 33899 822 61 _ _ NNP 33899 822 62 opaque opaque NN 33899 822 63 _ _ NNP 33899 822 64 sheet sheet NN 33899 822 65 can can MD 33899 822 66 be be VB 33899 822 67 had have VBN 33899 822 68 in in IN 33899 822 69 one one CD 33899 822 70 piece piece NN 33899 822 71 up up IN 33899 822 72 to to TO 33899 822 73 9 9 CD 33899 822 74 feet foot NNS 33899 822 75 square square JJ 33899 822 76 ; ; : 33899 822 77 larger large JJR 33899 822 78 sizes size NNS 33899 822 79 than than IN 33899 822 80 this this DT 33899 822 81 must must MD 33899 822 82 have have VB 33899 822 83 at at RB 33899 822 84 least least RBS 33899 822 85 one one CD 33899 822 86 seam seam NN 33899 822 87 , , , 33899 822 88 and and CC 33899 822 89 most most RBS 33899 822 90 skilful skilful JJ 33899 822 91 sewing sewing NN 33899 822 92 is be VBZ 33899 822 93 necessary necessary JJ 33899 822 94 , , , 33899 822 95 especially especially RB 33899 822 96 with with IN 33899 822 97 large large JJ 33899 822 98 sheets sheet NNS 33899 822 99 consisting consist VBG 33899 822 100 of of IN 33899 822 101 several several JJ 33899 822 102 strips strip NNS 33899 822 103 sewn sew VBN 33899 822 104 together together RB 33899 822 105 . . . 33899 823 1 Sheets sheet NNS 33899 823 2 such such JJ 33899 823 3 as as IN 33899 823 4 these these DT 33899 823 5 are be VBP 33899 823 6 usually usually RB 33899 823 7 supplied supply VBN 33899 823 8 with with IN 33899 823 9 either either DT 33899 823 10 eyelet eyelet NN 33899 823 11 holes hole NNS 33899 823 12 round round IN 33899 823 13 the the DT 33899 823 14 edges edge NNS 33899 823 15 or or CC 33899 823 16 else else JJ 33899 823 17 linen linen NN 33899 823 18 tapes tape NNS 33899 823 19 sewn sew VBN 33899 823 20 on on IN 33899 823 21 , , , 33899 823 22 and and CC 33899 823 23 the the DT 33899 823 24 exact exact JJ 33899 823 25 method method NN 33899 823 26 of of IN 33899 823 27 hanging hanging NN 33899 823 28 must must MD 33899 823 29 be be VB 33899 823 30 left leave VBN 33899 823 31 to to IN 33899 823 32 circumstances circumstance NNS 33899 823 33 . . . 33899 824 1 { { -LRB- 33899 824 2 81 81 CD 33899 824 3 } } -RRB- 33899 824 4 In in IN 33899 824 5 the the DT 33899 824 6 case case NN 33899 824 7 of of IN 33899 824 8 a a DT 33899 824 9 small small JJ 33899 824 10 sheet sheet NN 33899 824 11 it -PRON- PRP 33899 824 12 will will MD 33899 824 13 be be VB 33899 824 14 sufficient sufficient JJ 33899 824 15 to to TO 33899 824 16 stretch stretch VB 33899 824 17 it -PRON- PRP 33899 824 18 at at IN 33899 824 19 the the DT 33899 824 20 four four CD 33899 824 21 corners corner NNS 33899 824 22 , , , 33899 824 23 and and CC 33899 824 24 this this DT 33899 824 25 can can MD 33899 824 26 often often RB 33899 824 27 be be VB 33899 824 28 done do VBN 33899 824 29 by by IN 33899 824 30 screwing screw VBG 33899 824 31 into into IN 33899 824 32 the the DT 33899 824 33 walls wall NNS 33899 824 34 or or CC 33899 824 35 some some DT 33899 824 36 convenient convenient JJ 33899 824 37 girder girder NN 33899 824 38 two two CD 33899 824 39 screw screw JJ 33899 824 40 eyes eye NNS 33899 824 41 and and CC 33899 824 42 similar similar JJ 33899 824 43 eyes eye NNS 33899 824 44 into into IN 33899 824 45 the the DT 33899 824 46 floor floor NN 33899 824 47 , , , 33899 824 48 all all DT 33899 824 49 four four CD 33899 824 50 being be VBG 33899 824 51 considerably considerably RB 33899 824 52 farther far RBR 33899 824 53 apart apart RB 33899 824 54 than than IN 33899 824 55 the the DT 33899 824 56 size size NN 33899 824 57 of of IN 33899 824 58 the the DT 33899 824 59 sheet sheet NN 33899 824 60 . . . 33899 825 1 [ [ -LRB- 33899 825 2 Illustration illustration NN 33899 825 3 : : : 33899 825 4 FIG FIG NNP 33899 825 5 . . . 33899 826 1 49.--Portable 49.--portable CD 33899 826 2 Screen Screen NNP 33899 826 3 Stand Stand NNP 33899 826 4 . . . 33899 826 5 ] ] -RRB- 33899 827 1 A a DT 33899 827 2 stout stout JJ 33899 827 3 cord cord NN 33899 827 4 being be VBG 33899 827 5 then then RB 33899 827 6 passed pass VBN 33899 827 7 through through IN 33899 827 8 the the DT 33899 827 9 two two CD 33899 827 10 upper upper JJ 33899 827 11 eyes eye NNS 33899 827 12 , , , 33899 827 13 long long JJ 33899 827 14 enough enough RB 33899 827 15 for for IN 33899 827 16 both both DT 33899 827 17 ends end NNS 33899 827 18 to to TO 33899 827 19 reach reach VB 33899 827 20 near near IN 33899 827 21 the the DT 33899 827 22 floor floor NN 33899 827 23 , , , 33899 827 24 one one CD 33899 827 25 end end NN 33899 827 26 of of IN 33899 827 27 each each DT 33899 827 28 can can MD 33899 827 29 be be VB 33899 827 30 fastened fasten VBN 33899 827 31 to to IN 33899 827 32 the the DT 33899 827 33 two two CD 33899 827 34 top top JJ 33899 827 35 corners corner NNS 33899 827 36 of of IN 33899 827 37 the the DT 33899 827 38 sheet sheet NN 33899 827 39 and and CC 33899 827 40 the the DT 33899 827 41 latter latter JJ 33899 827 42 drawn draw VBN 33899 827 43 up up RP 33899 827 44 , , , 33899 827 45 the the DT 33899 827 46 two two CD 33899 827 47 bottom bottom JJ 33899 827 48 corners corner NNS 33899 827 49 being be VBG 33899 827 50 afterwards afterwards RB 33899 827 51 stretched stretch VBN 33899 827 52 and and CC 33899 827 53 tied tie VBN 33899 827 54 down down RP 33899 827 55 tightly tightly RB 33899 827 56 to to IN 33899 827 57 the the DT 33899 827 58 lower low JJR 33899 827 59 eyes eye NNS 33899 827 60 . . . 33899 828 1 In in IN 33899 828 2 the the DT 33899 828 3 case case NN 33899 828 4 of of IN 33899 828 5 large large JJ 33899 828 6 sheets sheet NNS 33899 828 7 this this DT 33899 828 8 hardly hardly RB 33899 828 9 suffices suffice VBZ 33899 828 10 , , , 33899 828 11 and and CC 33899 828 12 it -PRON- PRP 33899 828 13 will will MD 33899 828 14 be be VB 33899 828 15 found find VBN 33899 828 16 necessary necessary JJ 33899 828 17 to to TO 33899 828 18 fasten fasten VB 33899 828 19 the the DT 33899 828 20 sheet sheet NN 33899 828 21 at at IN 33899 828 22 intervals interval NNS 33899 828 23 all all DT 33899 828 24 round round RB 33899 828 25 or or CC 33899 828 26 it -PRON- PRP 33899 828 27 will will MD 33899 828 28 exhibit exhibit VB 33899 828 29 awkward awkward JJ 33899 828 30 creases crease NNS 33899 828 31 , , , 33899 828 32 and and CC 33899 828 33 this this DT 33899 828 34 again again RB 33899 828 35 is be VBZ 33899 828 36 a a DT 33899 828 37 matter matter NN 33899 828 38 where where WRB 33899 828 39 the the DT 33899 828 40 lanternist lanternist NN 33899 828 41 must must MD 33899 828 42 use use VB 33899 828 43 his -PRON- PRP$ 33899 828 44 own own JJ 33899 828 45 initiative initiative NN 33899 828 46 according accord VBG 33899 828 47 to to IN 33899 828 48 the the DT 33899 828 49 possibilities possibility NNS 33899 828 50 . . . 33899 829 1 In in IN 33899 829 2 some some DT 33899 829 3 halls hall NNS 33899 829 4 the the DT 33899 829 5 erection erection NN 33899 829 6 of of IN 33899 829 7 a a DT 33899 829 8 sheet sheet NN 33899 829 9 in in IN 33899 829 10 the the DT 33899 829 11 way way NN 33899 829 12 above above IN 33899 829 13 described describe VBN 33899 829 14 is be VBZ 33899 829 15 a a DT 33899 829 16 sheer sheer JJ 33899 829 17 impossibility impossibility NN 33899 829 18 , , , 33899 829 19 and and CC 33899 829 20 in in IN 33899 829 21 such such JJ 33899 829 22 cases case NNS 33899 829 23 a a DT 33899 829 24 frame frame NN 33899 829 25 must must MD 33899 829 26 be be VB 33899 829 27 made make VBN 33899 829 28 by by IN 33899 829 29 nailing nail VBG 33899 829 30 strips strip NNS 33899 829 31 of of IN 33899 829 32 wood wood NN 33899 829 33 together together RB 33899 829 34 , , , 33899 829 35 or or CC 33899 829 36 better well JJR 33899 829 37 by by IN 33899 829 38 utilising utilise VBG 33899 829 39 a a DT 33899 829 40 portable portable JJ 33899 829 41 screen screen NN 33899 829 42 stand stand NN 33899 829 43 ( ( -LRB- 33899 829 44 Fig fig NN 33899 829 45 . . . 33899 830 1 49 49 CD 33899 830 2 ) ) -RRB- 33899 830 3 . . . 33899 831 1 These these DT 33899 831 2 stands stand NNS 33899 831 3 are be VBP 33899 831 4 usually usually RB 33899 831 5 made make VBN 33899 831 6 of of IN 33899 831 7 bamboo bamboo NN 33899 831 8 , , , 33899 831 9 with with IN 33899 831 10 short short JJ 33899 831 11 brass brass NN 33899 831 12 connecting connect VBG 33899 831 13 tubes tube NNS 33899 831 14 , , , 33899 831 15 and and CC 33899 831 16 the the DT 33899 831 17 method method NN 33899 831 18 of of IN 33899 831 19 using use VBG 33899 831 20 them -PRON- PRP 33899 831 21 is be VBZ 33899 831 22 so so RB 33899 831 23 obvious obvious JJ 33899 831 24 that that IN 33899 831 25 a a DT 33899 831 26 description description NN 33899 831 27 need nee MD 33899 831 28 hardly hardly RB 33899 831 29 be be VB 33899 831 30 given give VBN 33899 831 31 . . . 33899 832 1 The the DT 33899 832 2 screen screen NN 33899 832 3 frames frame NNS 33899 832 4 are be VBP 33899 832 5 supplied supply VBN 33899 832 6 by by IN 33899 832 7 all all PDT 33899 832 8 the the DT 33899 832 9 leading lead VBG 33899 832 10 opticians optician NNS 33899 832 11 , , , 33899 832 12 but but CC 33899 832 13 an an DT 33899 832 14 intending intend VBG 33899 832 15 purchaser purchaser NN 33899 832 16 would would MD 33899 832 17 be be VB 33899 832 18 well well RB 33899 832 19 advised advise VBN 33899 832 20 to to TO 33899 832 21 see see VB 33899 832 22 one one CD 33899 832 23 erected erect VBN 33899 832 24 before before IN 33899 832 25 ordering order VBG 33899 832 26 . . . 33899 833 1 I -PRON- PRP 33899 833 2 have have VBP 33899 833 3 actually actually RB 33899 833 4 seen see VBN 33899 833 5 a a DT 33899 833 6 12-foot 12-foot CD 33899 833 7 screen screen NN 33899 833 8 frame frame NN 33899 833 9 offered offer VBN 33899 833 10 for for IN 33899 833 11 sale sale NN 33899 833 12 that that WDT 33899 833 13 was be VBD 33899 833 14 too too RB 33899 833 15 weak weak JJ 33899 833 16 to to TO 33899 833 17 carry carry VB 33899 833 18 its -PRON- PRP$ 33899 833 19 own own JJ 33899 833 20 weight weight NN 33899 833 21 , , , 33899 833 22 let let VB 33899 833 23 alone alone RB 33899 833 24 the the DT 33899 833 25 weight weight NN 33899 833 26 of of IN 33899 833 27 the the DT 33899 833 28 sheet sheet NN 33899 833 29 ! ! . 33899 834 1 * * NFP 33899 834 2 * * NFP 33899 834 3 * * NFP 33899 834 4 * * NFP 33899 834 5 * * NFP 33899 834 6 { { -LRB- 33899 834 7 82 82 CD 33899 834 8 } } -RRB- 33899 834 9 CHAPTER chapter NN 33899 834 10 XI XI NNP 33899 834 11 THE the DT 33899 834 12 PRACTICAL practical NN 33899 834 13 MANIPULATION manipulation NN 33899 834 14 OF of IN 33899 834 15 A a DT 33899 834 16 LANTERN lantern NN 33899 834 17 Having have VBG 33899 834 18 now now RB 33899 834 19 described describe VBN 33899 834 20 the the DT 33899 834 21 optical optical JJ 33899 834 22 lantern lantern NN 33899 834 23 in in IN 33899 834 24 its -PRON- PRP$ 33899 834 25 various various JJ 33899 834 26 forms form NNS 33899 834 27 and and CC 33899 834 28 the the DT 33899 834 29 more more RBR 33899 834 30 important important JJ 33899 834 31 accessories accessory NNS 33899 834 32 , , , 33899 834 33 we -PRON- PRP 33899 834 34 come come VBP 33899 834 35 to to IN 33899 834 36 the the DT 33899 834 37 question question NN 33899 834 38 of of IN 33899 834 39 practical practical JJ 33899 834 40 manipulation manipulation NN 33899 834 41 . . . 33899 835 1 In in IN 33899 835 2 making make VBG 33899 835 3 arrangements arrangement NNS 33899 835 4 for for IN 33899 835 5 an an DT 33899 835 6 exhibition exhibition NN 33899 835 7 the the DT 33899 835 8 first first JJ 33899 835 9 thing thing NN 33899 835 10 to to TO 33899 835 11 be be VB 33899 835 12 seen see VBN 33899 835 13 to to IN 33899 835 14 is be VBZ 33899 835 15 to to TO 33899 835 16 ensure ensure VB 33899 835 17 that that IN 33899 835 18 every every DT 33899 835 19 accessory accessory NN 33899 835 20 that that WDT 33899 835 21 will will MD 33899 835 22 be be VB 33899 835 23 required require VBN 33899 835 24 will will MD 33899 835 25 be be VB 33899 835 26 there there RB 33899 835 27 , , , 33899 835 28 and and CC 33899 835 29 the the DT 33899 835 30 best good JJS 33899 835 31 plan plan NN 33899 835 32 is be VBZ 33899 835 33 to to TO 33899 835 34 make make VB 33899 835 35 a a DT 33899 835 36 complete complete JJ 33899 835 37 list list NN 33899 835 38 of of IN 33899 835 39 all all DT 33899 835 40 sundries sundrie NNS 33899 835 41 to to TO 33899 835 42 be be VB 33899 835 43 provided provide VBN 33899 835 44 . . . 33899 836 1 Such such JJ 33899 836 2 items item NNS 33899 836 3 as as IN 33899 836 4 string string NN 33899 836 5 ( ( -LRB- 33899 836 6 for for IN 33899 836 7 the the DT 33899 836 8 sheet sheet NN 33899 836 9 ) ) -RRB- 33899 836 10 , , , 33899 836 11 lime lime NN 33899 836 12 tongs tong NNS 33899 836 13 if if IN 33899 836 14 limelight limelight NN 33899 836 15 is be VBZ 33899 836 16 used use VBN 33899 836 17 , , , 33899 836 18 pliers plier NNS 33899 836 19 for for IN 33899 836 20 changing change VBG 33899 836 21 carbons carbon NNS 33899 836 22 if if IN 33899 836 23 the the DT 33899 836 24 arc arc NN 33899 836 25 is be VBZ 33899 836 26 to to TO 33899 836 27 be be VB 33899 836 28 the the DT 33899 836 29 illuminant illuminant JJ 33899 836 30 , , , 33899 836 31 screw screw NN 33899 836 32 - - HYPH 33899 836 33 driver driver NN 33899 836 34 , , , 33899 836 35 matches match NNS 33899 836 36 , , , 33899 836 37 the the DT 33899 836 38 _ _ NNP 33899 836 39 key key NN 33899 836 40 of of IN 33899 836 41 the the DT 33899 836 42 lantern lantern NNP 33899 836 43 box box NNP 33899 836 44 _ _ NNP 33899 836 45 , , , 33899 836 46 and and CC 33899 836 47 other other JJ 33899 836 48 similar similar JJ 33899 836 49 items item NNS 33899 836 50 , , , 33899 836 51 are be VBP 33899 836 52 likely likely JJ 33899 836 53 to to TO 33899 836 54 be be VB 33899 836 55 left leave VBN 33899 836 56 behind behind RB 33899 836 57 unless unless IN 33899 836 58 such such PDT 33899 836 59 a a DT 33899 836 60 list list NN 33899 836 61 is be VBZ 33899 836 62 made make VBN 33899 836 63 and and CC 33899 836 64 carefully carefully RB 33899 836 65 checked check VBN 33899 836 66 . . . 33899 837 1 On on IN 33899 837 2 arriving arrive VBG 33899 837 3 at at IN 33899 837 4 the the DT 33899 837 5 hall hall NN 33899 837 6 , , , 33899 837 7 the the DT 33899 837 8 first first JJ 33899 837 9 thing thing NN 33899 837 10 to to TO 33899 837 11 be be VB 33899 837 12 done do VBN 33899 837 13 as as IN 33899 837 14 a a DT 33899 837 15 rule rule NN 33899 837 16 is be VBZ 33899 837 17 to to TO 33899 837 18 get get VB 33899 837 19 up up RP 33899 837 20 the the DT 33899 837 21 sheet sheet NN 33899 837 22 , , , 33899 837 23 after after IN 33899 837 24 which which WDT 33899 837 25 the the DT 33899 837 26 professional professional JJ 33899 837 27 operator operator NN 33899 837 28 generally generally RB 33899 837 29 begins begin VBZ 33899 837 30 to to TO 33899 837 31 feel feel VB 33899 837 32 happy happy JJ 33899 837 33 again again RB 33899 837 34 . . . 33899 838 1 The the DT 33899 838 2 next next JJ 33899 838 3 thing thing NN 33899 838 4 , , , 33899 838 5 if if IN 33899 838 6 it -PRON- PRP 33899 838 7 has have VBZ 33899 838 8 not not RB 33899 838 9 been be VBN 33899 838 10 done do VBN 33899 838 11 first first RB 33899 838 12 , , , 33899 838 13 is be VBZ 33899 838 14 to to TO 33899 838 15 determine determine VB 33899 838 16 the the DT 33899 838 17 position position NN 33899 838 18 of of IN 33899 838 19 the the DT 33899 838 20 lantern lantern NN 33899 838 21 , , , 33899 838 22 and and CC 33899 838 23 this this DT 33899 838 24 , , , 33899 838 25 as as IN 33899 838 26 has have VBZ 33899 838 27 been be VBN 33899 838 28 explained explain VBN 33899 838 29 in in IN 33899 838 30 Chapter Chapter NNP 33899 838 31 VII VII NNP 33899 838 32 , , , 33899 838 33 is be VBZ 33899 838 34 a a DT 33899 838 35 matter matter NN 33899 838 36 of of IN 33899 838 37 the the DT 33899 838 38 size size NN 33899 838 39 of of IN 33899 838 40 picture picture NN 33899 838 41 to to TO 33899 838 42 be be VB 33899 838 43 shown show VBN 33899 838 44 and and CC 33899 838 45 the the DT 33899 838 46 focus focus NN 33899 838 47 of of IN 33899 838 48 the the DT 33899 838 49 objective objective NN 33899 838 50 . . . 33899 839 1 It -PRON- PRP 33899 839 2 is be VBZ 33899 839 3 a a DT 33899 839 4 mistake mistake NN 33899 839 5 to to TO 33899 839 6 show show VB 33899 839 7 too too RB 33899 839 8 large large JJ 33899 839 9 a a DT 33899 839 10 picture picture NN 33899 839 11 ; ; : 33899 839 12 a a DT 33899 839 13 little little JJ 33899 839 14 ' ' `` 33899 839 15 white white JJ 33899 839 16 ' ' '' 33899 839 17 round round IN 33899 839 18 the the DT 33899 839 19 edges edge NNS 33899 839 20 is be VBZ 33899 839 21 a a DT 33899 839 22 good good JJ 33899 839 23 thing thing NN 33899 839 24 , , , 33899 839 25 and and CC 33899 839 26 it -PRON- PRP 33899 839 27 is be VBZ 33899 839 28 better well JJR 33899 839 29 to to TO 33899 839 30 have have VB 33899 839 31 a a DT 33899 839 32 small small JJ 33899 839 33 disc disc NN 33899 839 34 well well RB 33899 839 35 illuminated illuminate VBN 33899 839 36 than than IN 33899 839 37 a a DT 33899 839 38 large large JJ 33899 839 39 one one CD 33899 839 40 less less RBR 33899 839 41 bright bright JJ 33899 839 42 . . . 33899 840 1 Convenience convenience NN 33899 840 2 , , , 33899 840 3 however however RB 33899 840 4 , , , 33899 840 5 must must MD 33899 840 6 also also RB 33899 840 7 be be VB 33899 840 8 considered consider VBN 33899 840 9 , , , 33899 840 10 and and CC 33899 840 11 it -PRON- PRP 33899 840 12 is be VBZ 33899 840 13 often often RB 33899 840 14 justifiable justifiable JJ 33899 840 15 to to TO 33899 840 16 go go VB 33899 840 17 back back RB 33899 840 18 a a DT 33899 840 19 few few JJ 33899 840 20 feet foot NNS 33899 840 21 farther farther RB 33899 840 22 than than IN 33899 840 23 other other JJ 33899 840 24 considerations consideration NNS 33899 840 25 would would MD 33899 840 26 dictate dictate VB 33899 840 27 in in IN 33899 840 28 order order NN 33899 840 29 to to TO 33899 840 30 place place VB 33899 840 31 the the DT 33899 840 32 lantern lantern NN 33899 840 33 in in IN 33899 840 34 a a DT 33899 840 35 gallery gallery NN 33899 840 36 or or CC 33899 840 37 other other JJ 33899 840 38 spot spot NN 33899 840 39 where where WRB 33899 840 40 it -PRON- PRP 33899 840 41 is be VBZ 33899 840 42 out out IN 33899 840 43 of of IN 33899 840 44 the the DT 33899 840 45 way way NN 33899 840 46 . . . 33899 841 1 Having have VBG 33899 841 2 fixed fix VBN 33899 841 3 the the DT 33899 841 4 position position NN 33899 841 5 of of IN 33899 841 6 the the DT 33899 841 7 lantern lantern NN 33899 841 8 , , , 33899 841 9 it -PRON- PRP 33899 841 10 should should MD 33899 841 11 be be VB 33899 841 12 got get VBN 33899 841 13 into into IN 33899 841 14 place place NN 33899 841 15 , , , 33899 841 16 the the DT 33899 841 17 cable cable NN 33899 841 18 or or CC 33899 841 19 tubing tube VBG 33899 841 20 connected connect VBN 33899 841 21 or or CC 33899 841 22 whatever whatever WDT 33899 841 23 else else RB 33899 841 24 is be VBZ 33899 841 25 necessary necessary JJ 33899 841 26 , , , 33899 841 27 according accord VBG 33899 841 28 to to IN 33899 841 29 the the DT 33899 841 30 illuminant illuminant NN 33899 841 31 to to TO 33899 841 32 be be VB 33899 841 33 used use VBN 33899 841 34 . . . 33899 842 1 It -PRON- PRP 33899 842 2 should should MD 33899 842 3 then then RB 33899 842 4 be be VB 33899 842 5 lit light VBN 33899 842 6 up up RP 33899 842 7 , , , 33899 842 8 the the DT 33899 842 9 flasher flasher NN 33899 842 10 of of IN 33899 842 11 the the DT 33899 842 12 lens lens NN 33899 842 13 opened open VBD 33899 842 14 , , , 33899 842 15 and and CC 33899 842 16 the the DT 33899 842 17 light light JJ 33899 842 18 { { -LRB- 33899 842 19 83 83 CD 33899 842 20 } } -RRB- 33899 842 21 centred centre VBD 33899 842 22 sufficiently sufficiently RB 33899 842 23 to to TO 33899 842 24 produce produce VB 33899 842 25 some some DT 33899 842 26 sort sort NN 33899 842 27 of of IN 33899 842 28 disc disc NN 33899 842 29 upon upon IN 33899 842 30 the the DT 33899 842 31 screen screen NN 33899 842 32 . . . 33899 843 1 ( ( -LRB- 33899 843 2 It -PRON- PRP 33899 843 3 is be VBZ 33899 843 4 , , , 33899 843 5 of of IN 33899 843 6 course course NN 33899 843 7 , , , 33899 843 8 presumed presume VBD 33899 843 9 that that IN 33899 843 10 the the DT 33899 843 11 lenses lense NNS 33899 843 12 , , , 33899 843 13 & & CC 33899 843 14 c. c. NNP 33899 843 15 , , , 33899 843 16 have have VBP 33899 843 17 previously previously RB 33899 843 18 been be VBN 33899 843 19 cleaned clean VBN 33899 843 20 . . . 33899 843 21 ) ) -RRB- 33899 844 1 A a DT 33899 844 2 carrier carrier NN 33899 844 3 should should MD 33899 844 4 now now RB 33899 844 5 be be VB 33899 844 6 placed place VBN 33899 844 7 in in IN 33899 844 8 the the DT 33899 844 9 stage stage NN 33899 844 10 and and CC 33899 844 11 a a DT 33899 844 12 slide slide NN 33899 844 13 inserted insert VBN 33899 844 14 into into IN 33899 844 15 it -PRON- PRP 33899 844 16 , , , 33899 844 17 and and CC 33899 844 18 the the DT 33899 844 19 method method NN 33899 844 20 of of IN 33899 844 21 doing do VBG 33899 844 22 so so RB 33899 844 23 requires require VBZ 33899 844 24 a a DT 33899 844 25 little little JJ 33899 844 26 explanation explanation NN 33899 844 27 . . . 33899 845 1 The the DT 33899 845 2 slide slide NN 33899 845 3 must must MD 33899 845 4 be be VB 33899 845 5 placed place VBN 33899 845 6 in in IN 33899 845 7 the the DT 33899 845 8 carrier carrier NN 33899 845 9 upside upside RB 33899 845 10 down down RB 33899 845 11 , , , 33899 845 12 as as IN 33899 845 13 will will MD 33899 845 14 be be VB 33899 845 15 obvious obvious JJ 33899 845 16 to to IN 33899 845 17 anyone anyone NN 33899 845 18 who who WP 33899 845 19 has have VBZ 33899 845 20 studied study VBN 33899 845 21 Chapter Chapter NNP 33899 845 22 VII VII NNP 33899 845 23 , , , 33899 845 24 but but CC 33899 845 25 in in IN 33899 845 26 addition addition NN 33899 845 27 to to IN 33899 845 28 this this DT 33899 845 29 it -PRON- PRP 33899 845 30 must must MD 33899 845 31 be be VB 33899 845 32 turned turn VBN 33899 845 33 the the DT 33899 845 34 correct correct JJ 33899 845 35 way way NN 33899 845 36 , , , 33899 845 37 otherwise otherwise RB 33899 845 38 the the DT 33899 845 39 picture picture NN 33899 845 40 will will MD 33899 845 41 be be VB 33899 845 42 reversed reverse VBN 33899 845 43 from from IN 33899 845 44 left leave VBN 33899 845 45 to to IN 33899 845 46 right right NN 33899 845 47 . . . 33899 846 1 This this DT 33899 846 2 in in IN 33899 846 3 the the DT 33899 846 4 case case NN 33899 846 5 of of IN 33899 846 6 certain certain JJ 33899 846 7 subjects subject NNS 33899 846 8 , , , 33899 846 9 such such JJ 33899 846 10 as as IN 33899 846 11 a a DT 33899 846 12 copy copy NN 33899 846 13 of of IN 33899 846 14 a a DT 33899 846 15 picture picture NN 33899 846 16 , , , 33899 846 17 may may MD 33899 846 18 not not RB 33899 846 19 greatly greatly RB 33899 846 20 matter matter VB 33899 846 21 ; ; : 33899 846 22 but but CC 33899 846 23 in in IN 33899 846 24 slides slide NNS 33899 846 25 depicting depict VBG 33899 846 26 buildings building NNS 33899 846 27 or or CC 33899 846 28 landscapes landscape NNS 33899 846 29 with with IN 33899 846 30 which which WDT 33899 846 31 the the DT 33899 846 32 audience audience NN 33899 846 33 may may MD 33899 846 34 be be VB 33899 846 35 familiar familiar JJ 33899 846 36 , , , 33899 846 37 or or CC 33899 846 38 worse bad JJR 33899 846 39 still still RB 33899 846 40 , , , 33899 846 41 printing printing NN 33899 846 42 or or CC 33899 846 43 writing writing NN 33899 846 44 , , , 33899 846 45 is be VBZ 33899 846 46 a a DT 33899 846 47 serious serious JJ 33899 846 48 blunder blunder NN 33899 846 49 . . . 33899 847 1 Slides slide NNS 33899 847 2 made make VBN 33899 847 3 by by IN 33899 847 4 a a DT 33899 847 5 commercial commercial JJ 33899 847 6 firm firm NN 33899 847 7 will will MD 33899 847 8 usually usually RB 33899 847 9 be be VB 33899 847 10 ' ' `` 33899 847 11 spotted spot VBN 33899 847 12 , , , 33899 847 13 ' ' '' 33899 847 14 that that DT 33899 847 15 is be VBZ 33899 847 16 to to TO 33899 847 17 say say VB 33899 847 18 , , , 33899 847 19 will will MD 33899 847 20 have have VB 33899 847 21 two two CD 33899 847 22 white white JJ 33899 847 23 spots spot NNS 33899 847 24 on on IN 33899 847 25 the the DT 33899 847 26 face face NN 33899 847 27 of of IN 33899 847 28 the the DT 33899 847 29 slide slide NN 33899 847 30 when when WRB 33899 847 31 the the DT 33899 847 32 latter latter NN 33899 847 33 is be VBZ 33899 847 34 viewed view VBN 33899 847 35 in in IN 33899 847 36 its -PRON- PRP$ 33899 847 37 correct correct JJ 33899 847 38 position position NN 33899 847 39 , , , 33899 847 40 and and CC 33899 847 41 at at IN 33899 847 42 the the DT 33899 847 43 top top NN 33899 847 44 . . . 33899 848 1 The the DT 33899 848 2 slides slide NNS 33899 848 3 should should MD 33899 848 4 be be VB 33899 848 5 turned turn VBN 33899 848 6 upside upside RB 33899 848 7 down down RB 33899 848 8 and and CC 33899 848 9 placed place VBN 33899 848 10 in in IN 33899 848 11 the the DT 33899 848 12 carrier carrier NN 33899 848 13 with with IN 33899 848 14 the the DT 33899 848 15 spots spot NNS 33899 848 16 , , , 33899 848 17 of of IN 33899 848 18 course course NN 33899 848 19 , , , 33899 848 20 now now RB 33899 848 21 at at IN 33899 848 22 the the DT 33899 848 23 bottom bottom NN 33899 848 24 and and CC 33899 848 25 _ _ NNP 33899 848 26 towards towards IN 33899 848 27 the the DT 33899 848 28 condenser condenser NN 33899 848 29 _ _ NNP 33899 848 30 . . . 33899 849 1 If if IN 33899 849 2 a a DT 33899 849 3 slide slide NN 33899 849 4 is be VBZ 33899 849 5 not not RB 33899 849 6 spotted spot VBN 33899 849 7 it -PRON- PRP 33899 849 8 should should MD 33899 849 9 be be VB 33899 849 10 viewed view VBN 33899 849 11 as as IN 33899 849 12 it -PRON- PRP 33899 849 13 is be VBZ 33899 849 14 to to TO 33899 849 15 appear appear VB 33899 849 16 on on IN 33899 849 17 the the DT 33899 849 18 screen screen NN 33899 849 19 , , , 33899 849 20 and and CC 33899 849 21 then then RB 33899 849 22 placed place VBN 33899 849 23 in in IN 33899 849 24 the the DT 33899 849 25 carrier carrier NN 33899 849 26 with with IN 33899 849 27 the the DT 33899 849 28 face face NN 33899 849 29 that that WDT 33899 849 30 was be VBD 33899 849 31 towards towards IN 33899 849 32 the the DT 33899 849 33 operator operator NN 33899 849 34 as as IN 33899 849 35 he -PRON- PRP 33899 849 36 viewed view VBD 33899 849 37 it -PRON- PRP 33899 849 38 turned turn VBD 33899 849 39 to to IN 33899 849 40 the the DT 33899 849 41 condenser condenser NN 33899 849 42 , , , 33899 849 43 and and CC 33899 849 44 of of IN 33899 849 45 course course NN 33899 849 46 inverted invert VBN 33899 849 47 . . . 33899 850 1 The the DT 33899 850 2 above above JJ 33899 850 3 remarks remark NNS 33899 850 4 apply apply VBP 33899 850 5 only only RB 33899 850 6 in in IN 33899 850 7 cases case NNS 33899 850 8 where where WRB 33899 850 9 the the DT 33899 850 10 image image NN 33899 850 11 is be VBZ 33899 850 12 thrown throw VBN 33899 850 13 _ _ NNP 33899 850 14 on on IN 33899 850 15 _ _ NNP 33899 850 16 the the DT 33899 850 17 screen screen NN 33899 850 18 ; ; : 33899 850 19 in in IN 33899 850 20 the the DT 33899 850 21 comparatively comparatively RB 33899 850 22 rare rare JJ 33899 850 23 instances instance NNS 33899 850 24 where where WRB 33899 850 25 it -PRON- PRP 33899 850 26 is be VBZ 33899 850 27 shown show VBN 33899 850 28 _ _ NNP 33899 850 29 through through IN 33899 850 30 _ _ NNP 33899 850 31 the the DT 33899 850 32 latter latter JJ 33899 850 33 the the DT 33899 850 34 slides slide NNS 33899 850 35 must must MD 33899 850 36 be be VB 33899 850 37 turned turn VBN 33899 850 38 round round RB 33899 850 39 laterally laterally RB 33899 850 40 , , , 33899 850 41 but but CC 33899 850 42 of of IN 33899 850 43 course course NN 33899 850 44 still still RB 33899 850 45 inverted invert VBN 33899 850 46 . . . 33899 851 1 The the DT 33899 851 2 slide slide NN 33899 851 3 having have VBG 33899 851 4 been be VBN 33899 851 5 placed place VBN 33899 851 6 in in IN 33899 851 7 the the DT 33899 851 8 stage stage NN 33899 851 9 it -PRON- PRP 33899 851 10 should should MD 33899 851 11 be be VB 33899 851 12 ' ' `` 33899 851 13 focussed focusse VBN 33899 851 14 ' ' '' 33899 851 15 by by IN 33899 851 16 racking rack VBG 33899 851 17 the the DT 33899 851 18 objective objective NN 33899 851 19 in in IN 33899 851 20 or or CC 33899 851 21 out out RB 33899 851 22 , , , 33899 851 23 and and CC 33899 851 24 if if IN 33899 851 25 necessary necessary JJ 33899 851 26 pulling pull VBG 33899 851 27 out out RP 33899 851 28 the the DT 33899 851 29 draw draw NN 33899 851 30 tube tube NN 33899 851 31 as as RB 33899 851 32 well well RB 33899 851 33 until until IN 33899 851 34 the the DT 33899 851 35 image image NN 33899 851 36 on on IN 33899 851 37 the the DT 33899 851 38 screen screen NN 33899 851 39 is be VBZ 33899 851 40 sharply sharply RB 33899 851 41 defined define VBN 33899 851 42 . . . 33899 852 1 So so RB 33899 852 2 far far RB 33899 852 3 the the DT 33899 852 4 light light NN 33899 852 5 has have VBZ 33899 852 6 only only RB 33899 852 7 been be VBN 33899 852 8 roughly roughly RB 33899 852 9 centred centre VBN 33899 852 10 , , , 33899 852 11 sufficiently sufficiently RB 33899 852 12 so so RB 33899 852 13 to to TO 33899 852 14 enable enable VB 33899 852 15 the the DT 33899 852 16 slide slide NN 33899 852 17 to to TO 33899 852 18 be be VB 33899 852 19 focussed focusse VBN 33899 852 20 , , , 33899 852 21 and and CC 33899 852 22 to to TO 33899 852 23 complete complete VB 33899 852 24 the the DT 33899 852 25 operation operation NN 33899 852 26 both both CC 33899 852 27 slide slide NN 33899 852 28 and and CC 33899 852 29 carrier carrier NN 33899 852 30 should should MD 33899 852 31 next next RB 33899 852 32 be be VB 33899 852 33 taken take VBN 33899 852 34 out out IN 33899 852 35 of of IN 33899 852 36 the the DT 33899 852 37 lantern lantern NN 33899 852 38 , , , 33899 852 39 leaving leave VBG 33899 852 40 a a DT 33899 852 41 clear clear JJ 33899 852 42 disc disc NN 33899 852 43 on on IN 33899 852 44 the the DT 33899 852 45 screen screen NN 33899 852 46 , , , 33899 852 47 and and CC 33899 852 48 this this DT 33899 852 49 disc disc NN 33899 852 50 may may MD 33899 852 51 resemble resemble VB 33899 852 52 any any DT 33899 852 53 of of IN 33899 852 54 the the DT 33899 852 55 appearances appearance NNS 33899 852 56 shown show VBN 33899 852 57 in in IN 33899 852 58 Fig Fig NNP 33899 852 59 . . . 33899 853 1 50 50 CD 33899 853 2 . . . 33899 854 1 { { -LRB- 33899 854 2 84 84 CD 33899 854 3 } } -RRB- 33899 854 4 If if IN 33899 854 5 it -PRON- PRP 33899 854 6 resembles resemble VBZ 33899 854 7 A a DT 33899 854 8 the the DT 33899 854 9 light light NN 33899 854 10 must must MD 33899 854 11 be be VB 33899 854 12 moved move VBN 33899 854 13 to to IN 33899 854 14 the the DT 33899 854 15 left left NN 33899 854 16 , , , 33899 854 17 if if IN 33899 854 18 like like UH 33899 854 19 B b NN 33899 854 20 to to IN 33899 854 21 the the DT 33899 854 22 right right NN 33899 854 23 , , , 33899 854 24 like like UH 33899 854 25 C C NNP 33899 854 26 it -PRON- PRP 33899 854 27 must must MD 33899 854 28 be be VB 33899 854 29 lowered lower VBN 33899 854 30 , , , 33899 854 31 like like IN 33899 854 32 D d NN 33899 854 33 it -PRON- PRP 33899 854 34 must must MD 33899 854 35 be be VB 33899 854 36 raised raise VBN 33899 854 37 , , , 33899 854 38 always always RB 33899 854 39 moving move VBG 33899 854 40 it -PRON- PRP 33899 854 41 to to IN 33899 854 42 the the DT 33899 854 43 side side NN 33899 854 44 opposite opposite RB 33899 854 45 to to IN 33899 854 46 the the DT 33899 854 47 dark dark JJ 33899 854 48 shade shade NN 33899 854 49 until until IN 33899 854 50 this this DT 33899 854 51 is be VBZ 33899 854 52 central central JJ 33899 854 53 on on IN 33899 854 54 the the DT 33899 854 55 disc disc NN 33899 854 56 . . . 33899 855 1 If if IN 33899 855 2 it -PRON- PRP 33899 855 3 now now RB 33899 855 4 resembles resemble VBZ 33899 855 5 E E NNP 33899 855 6 , , , 33899 855 7 the the DT 33899 855 8 light light NN 33899 855 9 must must MD 33899 855 10 be be VB 33899 855 11 moved move VBN 33899 855 12 nearer nearer IN 33899 855 13 the the DT 33899 855 14 condenser condenser NN 33899 855 15 ; ; : 33899 855 16 if if IN 33899 855 17 , , , 33899 855 18 on on IN 33899 855 19 the the DT 33899 855 20 contrary contrary NN 33899 855 21 , , , 33899 855 22 the the DT 33899 855 23 centre centre NN 33899 855 24 is be VBZ 33899 855 25 dark dark JJ 33899 855 26 , , , 33899 855 27 it -PRON- PRP 33899 855 28 must must MD 33899 855 29 be be VB 33899 855 30 drawn draw VBN 33899 855 31 back back RB 33899 855 32 until until IN 33899 855 33 finally finally RB 33899 855 34 the the DT 33899 855 35 circle circle NN 33899 855 36 should should MD 33899 855 37 be be VB 33899 855 38 as as RB 33899 855 39 nearly nearly RB 33899 855 40 as as IN 33899 855 41 possible possible JJ 33899 855 42 clear clear JJ 33899 855 43 and and CC 33899 855 44 bright bright JJ 33899 855 45 all all RB 33899 855 46 over over RB 33899 855 47 , , , 33899 855 48 as as IN 33899 855 49 at at IN 33899 855 50 F. F. NNP 33899 855 51 [ [ -LRB- 33899 855 52 Illustration illustration NN 33899 855 53 : : : 33899 855 54 FIG FIG NNP 33899 855 55 . . . 33899 856 1 50.--Adjustment 50.--adjustment CD 33899 856 2 of of IN 33899 856 3 the the DT 33899 856 4 Light Light NNP 33899 856 5 . . . 33899 856 6 ] ] -RRB- 33899 857 1 It -PRON- PRP 33899 857 2 is be VBZ 33899 857 3 important important JJ 33899 857 4 to to TO 33899 857 5 note note VB 33899 857 6 that that IN 33899 857 7 this this DT 33899 857 8 adjustment adjustment NN 33899 857 9 _ _ NNP 33899 857 10 can can MD 33899 857 11 not not RB 33899 857 12 _ _ VB 33899 857 13 be be VB 33899 857 14 properly properly RB 33899 857 15 made make VBN 33899 857 16 while while IN 33899 857 17 a a DT 33899 857 18 slide slide NN 33899 857 19 is be VBZ 33899 857 20 in in IN 33899 857 21 position position NN 33899 857 22 , , , 33899 857 23 and and CC 33899 857 24 neither neither CC 33899 857 25 can can MD 33899 857 26 it -PRON- PRP 33899 857 27 be be VB 33899 857 28 made make VBN 33899 857 29 until until IN 33899 857 30 the the DT 33899 857 31 lantern lantern NN 33899 857 32 has have VBZ 33899 857 33 been be VBN 33899 857 34 focussed focusse VBN 33899 857 35 , , , 33899 857 36 so so CC 33899 857 37 the the DT 33899 857 38 above above JJ 33899 857 39 procedure procedure NN 33899 857 40 is be VBZ 33899 857 41 the the DT 33899 857 42 only only JJ 33899 857 43 way way NN 33899 857 44 to to TO 33899 857 45 get get VB 33899 857 46 a a DT 33899 857 47 satisfactory satisfactory JJ 33899 857 48 result result NN 33899 857 49 . . . 33899 858 1 With with IN 33899 858 2 some some DT 33899 858 3 of of IN 33899 858 4 the the DT 33899 858 5 larger large JJR 33899 858 6 illuminants illuminant NNS 33899 858 7 , , , 33899 858 8 such such JJ 33899 858 9 as as IN 33899 858 10 a a DT 33899 858 11 paraffin paraffin NN 33899 858 12 - - HYPH 33899 858 13 oil oil NN 33899 858 14 lamp lamp NN 33899 858 15 , , , 33899 858 16 there there EX 33899 858 17 are be VBP 33899 858 18 no no DT 33899 858 19 centering center VBG 33899 858 20 adjustments adjustment NNS 33899 858 21 , , , 33899 858 22 the the DT 33899 858 23 size size NN 33899 858 24 of of IN 33899 858 25 the the DT 33899 858 26 radiant radiant JJ 33899 858 27 rendering render VBG 33899 858 28 exact exact JJ 33899 858 29 centering center VBG 33899 858 30 unnecessary unnecessary JJ 33899 858 31 , , , 33899 858 32 and and CC 33899 858 33 generally generally RB 33899 858 34 speaking speak VBG 33899 858 35 the the DT 33899 858 36 smaller small JJR 33899 858 37 the the DT 33899 858 38 luminous luminous JJ 33899 858 39 point point NN 33899 858 40 , , , 33899 858 41 the the DT 33899 858 42 more more RBR 33899 858 43 exact exact JJ 33899 858 44 must must MD 33899 858 45 the the DT 33899 858 46 operation operation NN 33899 858 47 be be VB 33899 858 48 . . . 33899 859 1 In in IN 33899 859 2 the the DT 33899 859 3 case case NN 33899 859 4 of of IN 33899 859 5 such such JJ 33899 859 6 illuminants illuminant NNS 33899 859 7 as as IN 33899 859 8 acetylene acetylene NN 33899 859 9 or or CC 33899 859 10 limelight limelight NN 33899 859 11 { { -LRB- 33899 859 12 85 85 CD 33899 859 13 } } -RRB- 33899 859 14 care care NN 33899 859 15 must must MD 33899 859 16 be be VB 33899 859 17 taken take VBN 33899 859 18 that that IN 33899 859 19 they -PRON- PRP 33899 859 20 are be VBP 33899 859 21 turned turn VBN 33899 859 22 fully fully RB 33899 859 23 on on RB 33899 859 24 before before IN 33899 859 25 centering center VBG 33899 859 26 , , , 33899 859 27 otherwise otherwise RB 33899 859 28 turning turn VBG 33899 859 29 on on RP 33899 859 30 the the DT 33899 859 31 fuller full JJR 33899 859 32 amount amount NN 33899 859 33 afterwards afterwards RB 33899 859 34 will will MD 33899 859 35 raise raise VB 33899 859 36 the the DT 33899 859 37 position position NN 33899 859 38 of of IN 33899 859 39 the the DT 33899 859 40 luminous luminous JJ 33899 859 41 spot spot NN 33899 859 42 . . . 33899 860 1 The the DT 33899 860 2 centering center VBG 33899 860 3 achieved achieve VBN 33899 860 4 , , , 33899 860 5 the the DT 33899 860 6 slide slide NN 33899 860 7 carrier carrier NN 33899 860 8 may may MD 33899 860 9 be be VB 33899 860 10 replaced replace VBN 33899 860 11 , , , 33899 860 12 the the DT 33899 860 13 first first JJ 33899 860 14 slides slide NNS 33899 860 15 placed place VBN 33899 860 16 in in IN 33899 860 17 position position NN 33899 860 18 , , , 33899 860 19 the the DT 33899 860 20 remainder remainder NN 33899 860 21 arranged arrange VBD 33899 860 22 in in IN 33899 860 23 their -PRON- PRP$ 33899 860 24 proper proper JJ 33899 860 25 order order NN 33899 860 26 , , , 33899 860 27 the the DT 33899 860 28 system system NN 33899 860 29 of of IN 33899 860 30 signalling signal VBG 33899 860 31 with with IN 33899 860 32 the the DT 33899 860 33 lecturer lecturer NN 33899 860 34 determined determine VBN 33899 860 35 , , , 33899 860 36 and and CC 33899 860 37 all all DT 33899 860 38 is be VBZ 33899 860 39 ready ready JJ 33899 860 40 . . . 33899 861 1 If if IN 33899 861 2 there there EX 33899 861 3 is be VBZ 33899 861 4 still still RB 33899 861 5 an an DT 33899 861 6 interval interval NN 33899 861 7 before before IN 33899 861 8 commencing commence VBG 33899 861 9 , , , 33899 861 10 the the DT 33899 861 11 light light NN 33899 861 12 may may MD 33899 861 13 be be VB 33899 861 14 switched switch VBN 33899 861 15 off off RP 33899 861 16 or or CC 33899 861 17 turned turn VBN 33899 861 18 out out RP 33899 861 19 , , , 33899 861 20 or or CC 33899 861 21 in in IN 33899 861 22 the the DT 33899 861 23 case case NN 33899 861 24 say say VB 33899 861 25 of of IN 33899 861 26 limelight limelight NN 33899 861 27 , , , 33899 861 28 turned turn VBD 33899 861 29 down down RP 33899 861 30 very very RB 33899 861 31 low low RB 33899 861 32 until until IN 33899 861 33 wanted want VBN 33899 861 34 . . . 33899 862 1 It -PRON- PRP 33899 862 2 is be VBZ 33899 862 3 of of IN 33899 862 4 extreme extreme JJ 33899 862 5 importance importance NN 33899 862 6 to to TO 33899 862 7 see see VB 33899 862 8 that that IN 33899 862 9 all all PDT 33899 862 10 the the DT 33899 862 11 slides slide NNS 33899 862 12 are be VBP 33899 862 13 in in IN 33899 862 14 their -PRON- PRP$ 33899 862 15 right right JJ 33899 862 16 order order NN 33899 862 17 , , , 33899 862 18 though though IN 33899 862 19 the the DT 33899 862 20 duty duty NN 33899 862 21 of of IN 33899 862 22 seeing see VBG 33899 862 23 to to IN 33899 862 24 this this DT 33899 862 25 usually usually RB 33899 862 26 rests rest VBZ 33899 862 27 with with IN 33899 862 28 the the DT 33899 862 29 lecturer lecturer NN 33899 862 30 rather rather RB 33899 862 31 than than IN 33899 862 32 with with IN 33899 862 33 the the DT 33899 862 34 operator operator NN 33899 862 35 . . . 33899 863 1 I -PRON- PRP 33899 863 2 remember remember VBP 33899 863 3 hearing hear VBG 33899 863 4 of of IN 33899 863 5 one one CD 33899 863 6 lecture lecture NN 33899 863 7 on on IN 33899 863 8 the the DT 33899 863 9 life life NN 33899 863 10 of of IN 33899 863 11 Queen Queen NNP 33899 863 12 Victoria Victoria NNP 33899 863 13 , , , 33899 863 14 when when WRB 33899 863 15 the the DT 33899 863 16 lecturer lecturer NN 33899 863 17 announced announce VBD 33899 863 18 , , , 33899 863 19 ' ' '' 33899 863 20 The the DT 33899 863 21 next next JJ 33899 863 22 picture picture NN 33899 863 23 will will MD 33899 863 24 be be VB 33899 863 25 a a DT 33899 863 26 photograph photograph NN 33899 863 27 of of IN 33899 863 28 the the DT 33899 863 29 Royal Royal NNP 33899 863 30 Prince Prince NNP 33899 863 31 who who WP 33899 863 32 for for IN 33899 863 33 many many JJ 33899 863 34 years year NNS 33899 863 35 shared share VBD 33899 863 36 the the DT 33899 863 37 Throne throne NN 33899 863 38 with with IN 33899 863 39 our -PRON- PRP$ 33899 863 40 gracious gracious JJ 33899 863 41 Sovereign Sovereign NNP 33899 863 42 . . . 33899 863 43 ' ' '' 33899 864 1 At at IN 33899 864 2 the the DT 33899 864 3 words word NNS 33899 864 4 the the DT 33899 864 5 operator operator NN 33899 864 6 brought bring VBN 33899 864 7 on on RP 33899 864 8 the the DT 33899 864 9 next next JJ 33899 864 10 slide slide NN 33899 864 11 , , , 33899 864 12 which which WDT 33899 864 13 proved prove VBD 33899 864 14 to to TO 33899 864 15 be be VB 33899 864 16 _ _ NNP 33899 864 17 a a DT 33899 864 18 restored restore VBN 33899 864 19 specimen speciman NNS 33899 864 20 of of IN 33899 864 21 a a DT 33899 864 22 prehistoric prehistoric JJ 33899 864 23 monster monster NN 33899 864 24 _ _ NNP 33899 864 25 ( ( -LRB- 33899 864 26 tableaux tableaux NNP 33899 864 27 ! ! . 33899 864 28 ) ) -RRB- 33899 864 29 . . . 33899 865 1 Such such JJ 33899 865 2 mistakes mistake NNS 33899 865 3 ' ' POS 33899 865 4 bring bring VBP 33899 865 5 down down RP 33899 865 6 the the DT 33899 865 7 house house NN 33899 865 8 , , , 33899 865 9 ' ' '' 33899 865 10 but but CC 33899 865 11 in in IN 33899 865 12 serious serious JJ 33899 865 13 lectures lecture NNS 33899 865 14 , , , 33899 865 15 and and CC 33899 865 16 especially especially RB 33899 865 17 at at IN 33899 865 18 religious religious JJ 33899 865 19 services service NNS 33899 865 20 , , , 33899 865 21 can can MD 33899 865 22 not not RB 33899 865 23 be be VB 33899 865 24 too too RB 33899 865 25 carefully carefully RB 33899 865 26 guarded guard VBN 33899 865 27 against against IN 33899 865 28 . . . 33899 866 1 Mention Mention NNP 33899 866 2 has have VBZ 33899 866 3 already already RB 33899 866 4 been be VBN 33899 866 5 made make VBN 33899 866 6 of of IN 33899 866 7 the the DT 33899 866 8 liability liability NN 33899 866 9 of of IN 33899 866 10 moisture moisture NN 33899 866 11 to to TO 33899 866 12 condense condense VB 33899 866 13 on on IN 33899 866 14 the the DT 33899 866 15 surfaces surface NNS 33899 866 16 of of IN 33899 866 17 the the DT 33899 866 18 condensers condenser NNS 33899 866 19 or or CC 33899 866 20 slides slide NNS 33899 866 21 , , , 33899 866 22 and and CC 33899 866 23 to to TO 33899 866 24 avoid avoid VB 33899 866 25 this this DT 33899 866 26 , , , 33899 866 27 so so RB 33899 866 28 far far RB 33899 866 29 as as IN 33899 866 30 the the DT 33899 866 31 condensers condenser NNS 33899 866 32 are be VBP 33899 866 33 concerned concern VBN 33899 866 34 , , , 33899 866 35 it -PRON- PRP 33899 866 36 is be VBZ 33899 866 37 well well JJ 33899 866 38 to to TO 33899 866 39 light light VB 33899 866 40 up up RP 33899 866 41 say say VB 33899 866 42 ten ten CD 33899 866 43 minutes minute NNS 33899 866 44 before before IN 33899 866 45 the the DT 33899 866 46 lantern lantern NN 33899 866 47 is be VBZ 33899 866 48 actually actually RB 33899 866 49 wanted want VBN 33899 866 50 , , , 33899 866 51 or or CC 33899 866 52 alternatively alternatively RB 33899 866 53 to to TO 33899 866 54 take take VB 33899 866 55 out out RP 33899 866 56 the the DT 33899 866 57 condensers condenser NNS 33899 866 58 and and CC 33899 866 59 thoroughly thoroughly RB 33899 866 60 warm warm VB 33899 866 61 them -PRON- PRP 33899 866 62 in in IN 33899 866 63 front front NN 33899 866 64 of of IN 33899 866 65 a a DT 33899 866 66 stove stove NN 33899 866 67 , , , 33899 866 68 or or CC 33899 866 69 to to TO 33899 866 70 place place VB 33899 866 71 them -PRON- PRP 33899 866 72 wrapped wrap VBD 33899 866 73 in in IN 33899 866 74 a a DT 33899 866 75 cloth cloth NN 33899 866 76 on on IN 33899 866 77 hot hot JJ 33899 866 78 - - HYPH 33899 866 79 water water NN 33899 866 80 pipes pipe NNS 33899 866 81 . . . 33899 867 1 The the DT 33899 867 2 slides slide NNS 33899 867 3 should should MD 33899 867 4 in in IN 33899 867 5 the the DT 33899 867 6 same same JJ 33899 867 7 manner manner NN 33899 867 8 be be VB 33899 867 9 warmed warm VBN 33899 867 10 before before IN 33899 867 11 using use VBG 33899 867 12 and and CC 33899 867 13 should should MD 33899 867 14 be be VB 33899 867 15 finally finally RB 33899 867 16 held hold VBN 33899 867 17 above above IN 33899 867 18 the the DT 33899 867 19 lantern lantern NN 33899 867 20 or or CC 33899 867 21 placed place VBN 33899 867 22 on on IN 33899 867 23 the the DT 33899 867 24 top top NN 33899 867 25 , , , 33899 867 26 if if IN 33899 867 27 this this DT 33899 867 28 is be VBZ 33899 867 29 flat flat JJ 33899 867 30 , , , 33899 867 31 the the DT 33899 867 32 last last JJ 33899 867 33 thing thing NN 33899 867 34 before before IN 33899 867 35 being be VBG 33899 867 36 placed place VBN 33899 867 37 in in IN 33899 867 38 the the DT 33899 867 39 carrier carrier NN 33899 867 40 . . . 33899 868 1 If if IN 33899 868 2 these these DT 33899 868 3 precautions precaution NNS 33899 868 4 are be VBP 33899 868 5 omitted omit VBN 33899 868 6 , , , 33899 868 7 on on IN 33899 868 8 a a DT 33899 868 9 cold cold JJ 33899 868 10 night night NN 33899 868 11 the the DT 33899 868 12 first first JJ 33899 868 13 surface surface NN 33899 868 14 of of IN 33899 868 15 the the DT 33899 868 16 condenser condenser NN 33899 868 17 will will MD 33899 868 18 become become VB 33899 868 19 so so RB 33899 868 20 covered covered JJ 33899 868 21 with with IN 33899 868 22 moisture moisture NN 33899 868 23 as as IN 33899 868 24 to to TO 33899 868 25 almost almost RB 33899 868 26 obscure obscure VB 33899 868 27 the the DT 33899 868 28 slide slide NN 33899 868 29 , , , 33899 868 30 and and CC 33899 868 31 this this DT 33899 868 32 will will MD 33899 868 33 quickly quickly RB 33899 868 34 disappear disappear VB 33899 868 35 { { -LRB- 33899 868 36 86 86 CD 33899 868 37 } } -RRB- 33899 868 38 with with IN 33899 868 39 the the DT 33899 868 40 heat heat NN 33899 868 41 of of IN 33899 868 42 the the DT 33899 868 43 lantern lantern NNP 33899 868 44 . . . 33899 869 1 Next next RB 33899 869 2 , , , 33899 869 3 the the DT 33899 869 4 two two CD 33899 869 5 inner inner JJ 33899 869 6 surfaces surface NNS 33899 869 7 of of IN 33899 869 8 the the DT 33899 869 9 condensers condenser NNS 33899 869 10 will will MD 33899 869 11 behave behave VB 33899 869 12 in in IN 33899 869 13 turn turn NN 33899 869 14 in in IN 33899 869 15 the the DT 33899 869 16 same same JJ 33899 869 17 way way NN 33899 869 18 , , , 33899 869 19 and and CC 33899 869 20 will will MD 33899 869 21 take take VB 33899 869 22 considerably considerably RB 33899 869 23 longer longer RB 33899 869 24 to to TO 33899 869 25 clear clear VB 33899 869 26 , , , 33899 869 27 especially especially RB 33899 869 28 if if IN 33899 869 29 the the DT 33899 869 30 ventilation ventilation NN 33899 869 31 of of IN 33899 869 32 the the DT 33899 869 33 condenser condenser NN 33899 869 34 is be VBZ 33899 869 35 poor poor JJ 33899 869 36 ; ; : 33899 869 37 then then RB 33899 869 38 the the DT 33899 869 39 fourth fourth JJ 33899 869 40 surface surface NN 33899 869 41 will will MD 33899 869 42 take take VB 33899 869 43 up up RP 33899 869 44 the the DT 33899 869 45 running running NN 33899 869 46 , , , 33899 869 47 and and CC 33899 869 48 finally finally RB 33899 869 49 , , , 33899 869 50 when when WRB 33899 869 51 the the DT 33899 869 52 lanternist lanternist NN 33899 869 53 is be VBZ 33899 869 54 congratulating congratulate VBG 33899 869 55 himself -PRON- PRP 33899 869 56 that that IN 33899 869 57 the the DT 33899 869 58 trouble trouble NN 33899 869 59 is be VBZ 33899 869 60 over over RB 33899 869 61 , , , 33899 869 62 each each DT 33899 869 63 successive successive JJ 33899 869 64 slide slide NN 33899 869 65 will will MD 33899 869 66 become become VB 33899 869 67 affected affected JJ 33899 869 68 in in IN 33899 869 69 the the DT 33899 869 70 same same JJ 33899 869 71 way way NN 33899 869 72 . . . 33899 870 1 With with IN 33899 870 2 an an DT 33899 870 3 operator operator NN 33899 870 4 who who WP 33899 870 5 knows know VBZ 33899 870 6 his -PRON- PRP$ 33899 870 7 business business NN 33899 870 8 , , , 33899 870 9 none none NN 33899 870 10 of of IN 33899 870 11 these these DT 33899 870 12 troubles trouble NNS 33899 870 13 should should MD 33899 870 14 occur occur VB 33899 870 15 . . . 33899 871 1 ACCIDENTS.--These ACCIDENTS.--These NNP 33899 871 2 will will MD 33899 871 3 occur occur VB 33899 871 4 sometimes sometimes RB 33899 871 5 , , , 33899 871 6 even even RB 33899 871 7 in in IN 33899 871 8 the the DT 33899 871 9 best well RBS 33899 871 10 managed manage VBN 33899 871 11 exhibition exhibition NN 33899 871 12 ; ; : 33899 871 13 the the DT 33899 871 14 rubber rubber NN 33899 871 15 tubing tube VBG 33899 871 16 feeding feed VBG 33899 871 17 a a DT 33899 871 18 limelight limelight NN 33899 871 19 jet jet NN 33899 871 20 gets get VBZ 33899 871 21 kinked kink VBN 33899 871 22 or or CC 33899 871 23 trodden tread VBN 33899 871 24 on on RB 33899 871 25 , , , 33899 871 26 or or CC 33899 871 27 a a DT 33899 871 28 fuse fuse NN 33899 871 29 melts melt NNS 33899 871 30 if if IN 33899 871 31 electric electric JJ 33899 871 32 light light NN 33899 871 33 is be VBZ 33899 871 34 being be VBG 33899 871 35 used use VBN 33899 871 36 , , , 33899 871 37 & & CC 33899 871 38 c. c. NNP 33899 871 39 , , , 33899 871 40 and and CC 33899 871 41 out out RB 33899 871 42 goes go VBZ 33899 871 43 the the DT 33899 871 44 light light NN 33899 871 45 . . . 33899 872 1 In in IN 33899 872 2 such such JJ 33899 872 3 cases case NNS 33899 872 4 a a DT 33899 872 5 loud loud JJ 33899 872 6 request request NN 33899 872 7 such such JJ 33899 872 8 as as IN 33899 872 9 , , , 33899 872 10 ' ' `` 33899 872 11 Would Would MD 33899 872 12 you -PRON- PRP 33899 872 13 mind mind VB 33899 872 14 turning turn VBG 33899 872 15 up up RP 33899 872 16 the the DT 33899 872 17 light light NN 33899 872 18 for for IN 33899 872 19 a a DT 33899 872 20 minute minute NN 33899 872 21 , , , 33899 872 22 please please UH 33899 872 23 , , , 33899 872 24 ' ' '' 33899 872 25 accompanied accompany VBN 33899 872 26 by by IN 33899 872 27 a a DT 33899 872 28 good good JJ 33899 872 29 - - HYPH 33899 872 30 humoured humoured JJ 33899 872 31 laugh laugh NN 33899 872 32 , , , 33899 872 33 usually usually RB 33899 872 34 allays allay VBZ 33899 872 35 the the DT 33899 872 36 fears fear NNS 33899 872 37 of of IN 33899 872 38 ' ' `` 33899 872 39 nervy nervy JJ 33899 872 40 ' ' '' 33899 872 41 people people NNS 33899 872 42 . . . 33899 873 1 An an DT 33899 873 2 operator operator NN 33899 873 3 must must MD 33899 873 4 never never RB 33899 873 5 get get VB 33899 873 6 ' ' `` 33899 873 7 nervy nervy JJ 33899 873 8 ' ' '' 33899 873 9 himself -PRON- PRP 33899 873 10 . . . 33899 874 1 I -PRON- PRP 33899 874 2 have have VBP 33899 874 3 known know VBN 33899 874 4 of of IN 33899 874 5 more more JJR 33899 874 6 than than IN 33899 874 7 one one CD 33899 874 8 fiasco fiasco NN 33899 874 9 because because IN 33899 874 10 some some DT 33899 874 11 little little JJ 33899 874 12 hitch hitch NN 33899 874 13 occurred occur VBD 33899 874 14 , , , 33899 874 15 and and CC 33899 874 16 two two CD 33899 874 17 or or CC 33899 874 18 three three CD 33899 874 19 timid timid JJ 33899 874 20 ladies lady NNS 33899 874 21 crowded crowd VBD 33899 874 22 round round RB 33899 874 23 and and CC 33899 874 24 asked ask VBD 33899 874 25 anxious anxious JJ 33899 874 26 questions question NNS 33899 874 27 , , , 33899 874 28 till till IN 33899 874 29 the the DT 33899 874 30 lanternist lanternist NN 33899 874 31 lost lose VBD 33899 874 32 his -PRON- PRP$ 33899 874 33 head head NN 33899 874 34 . . . 33899 875 1 In in IN 33899 875 2 one one CD 33899 875 3 such such JJ 33899 875 4 case case NN 33899 875 5 the the DT 33899 875 6 cautious cautious JJ 33899 875 7 superintendent superintendent NN 33899 875 8 at at IN 33899 875 9 a a DT 33899 875 10 children child NNS 33899 875 11 's 's POS 33899 875 12 entertainment entertainment NN 33899 875 13 decided decide VBD 33899 875 14 that that IN 33899 875 15 it -PRON- PRP 33899 875 16 would would MD 33899 875 17 be be VB 33899 875 18 safer safe JJR 33899 875 19 not not RB 33899 875 20 to to TO 33899 875 21 have have VB 33899 875 22 the the DT 33899 875 23 exhibition exhibition NN 33899 875 24 at at RB 33899 875 25 all all RB 33899 875 26 , , , 33899 875 27 simply simply RB 33899 875 28 because because IN 33899 875 29 a a DT 33899 875 30 regulator regulator NN 33899 875 31 was be VBD 33899 875 32 not not RB 33899 875 33 screwed screw VBN 33899 875 34 tightly tightly RB 33899 875 35 enough enough RB 33899 875 36 into into IN 33899 875 37 a a DT 33899 875 38 cylinder cylinder NN 33899 875 39 to to TO 33899 875 40 prevent prevent VB 33899 875 41 an an DT 33899 875 42 escape escape NN 33899 875 43 of of IN 33899 875 44 gas gas NN 33899 875 45 , , , 33899 875 46 only only RB 33899 875 47 the the DT 33899 875 48 operator operator NN 33899 875 49 ( ( -LRB- 33899 875 50 a a DT 33899 875 51 somewhat somewhat RB 33899 875 52 youthful youthful JJ 33899 875 53 one one NN 33899 875 54 ) ) -RRB- 33899 875 55 had have VBD 33899 875 56 been be VBN 33899 875 57 driven drive VBN 33899 875 58 to to IN 33899 875 59 the the DT 33899 875 60 verge verge NN 33899 875 61 of of IN 33899 875 62 lunacy lunacy NN 33899 875 63 by by IN 33899 875 64 continual continual JJ 33899 875 65 questions question NNS 33899 875 66 of of IN 33899 875 67 the the DT 33899 875 68 standard standard JJ 33899 875 69 type type NN 33899 875 70 , , , 33899 875 71 ' ' '' 33899 875 72 Are be VBP 33899 875 73 you -PRON- PRP 33899 875 74 sure sure JJ 33899 875 75 it -PRON- PRP 33899 875 76 is be VBZ 33899 875 77 safe safe JJ 33899 875 78 ? ? . 33899 875 79 ' ' '' 33899 876 1 ' ' `` 33899 876 2 Will Will MD 33899 876 3 it -PRON- PRP 33899 876 4 blow blow VB 33899 876 5 up up RP 33899 876 6 ? ? . 33899 876 7 ' ' '' 33899 877 1 ' ' `` 33899 877 2 Are be VBP 33899 877 3 you -PRON- PRP 33899 877 4 certain certain JJ 33899 877 5 you -PRON- PRP 33899 877 6 understand understand VBP 33899 877 7 it -PRON- PRP 33899 877 8 ? ? . 33899 877 9 ' ' '' 33899 878 1 & & CC 33899 878 2 c. c. NNP 33899 878 3 , , , 33899 878 4 & & CC 33899 878 5 c. c. NNP 33899 878 6 More more RBR 33899 878 7 serious serious JJ 33899 878 8 accidents accident NNS 33899 878 9 , , , 33899 878 10 such such JJ 33899 878 11 as as IN 33899 878 12 the the DT 33899 878 13 entire entire JJ 33899 878 14 lantern lantern NN 33899 878 15 getting get VBG 33899 878 16 upset upset VBN 33899 878 17 , , , 33899 878 18 ought ought MD 33899 878 19 never never RB 33899 878 20 to to TO 33899 878 21 occur occur VB 33899 878 22 , , , 33899 878 23 and and CC 33899 878 24 it -PRON- PRP 33899 878 25 is be VBZ 33899 878 26 up up IN 33899 878 27 to to IN 33899 878 28 the the DT 33899 878 29 lanternist lanternist NN 33899 878 30 to to TO 33899 878 31 take take VB 33899 878 32 whatever whatever WDT 33899 878 33 precautions precaution NNS 33899 878 34 he -PRON- PRP 33899 878 35 deems deem VBZ 33899 878 36 necessary necessary JJ 33899 878 37 to to TO 33899 878 38 safeguard safeguard VB 33899 878 39 his -PRON- PRP$ 33899 878 40 instrument instrument NN 33899 878 41 . . . 33899 879 1 With with IN 33899 879 2 a a DT 33899 879 3 juvenile juvenile JJ 33899 879 4 audience audience NN 33899 879 5 , , , 33899 879 6 for for IN 33899 879 7 example example NN 33899 879 8 , , , 33899 879 9 it -PRON- PRP 33899 879 10 is be VBZ 33899 879 11 often often RB 33899 879 12 a a DT 33899 879 13 good good JJ 33899 879 14 thing thing NN 33899 879 15 to to TO 33899 879 16 arrange arrange VB 33899 879 17 a a DT 33899 879 18 barricade barricade NN 33899 879 19 of of IN 33899 879 20 forms form NNS 33899 879 21 round round IN 33899 879 22 the the DT 33899 879 23 lantern lantern NN 33899 879 24 and and CC 33899 879 25 to to TO 33899 879 26 see see VB 33899 879 27 that that IN 33899 879 28 no no DT 33899 879 29 one one NN 33899 879 30 comes come VBZ 33899 879 31 within within IN 33899 879 32 it -PRON- PRP 33899 879 33 . . . 33899 880 1 Finally finally RB 33899 880 2 , , , 33899 880 3 ' ' '' 33899 880 4 whatever whatever WDT 33899 880 5 is be VBZ 33899 880 6 worth worth JJ 33899 880 7 doing do VBG 33899 880 8 at at RB 33899 880 9 all all RB 33899 880 10 is be VBZ 33899 880 11 worth worth JJ 33899 880 12 doing do VBG 33899 880 13 well well RB 33899 880 14 , , , 33899 880 15 ' ' '' 33899 880 16 and and CC 33899 880 17 this this DT 33899 880 18 is be VBZ 33899 880 19 as as RB 33899 880 20 true true JJ 33899 880 21 of of IN 33899 880 22 lantern lantern NNP 33899 880 23 exhibiting exhibit VBG 33899 880 24 as as IN 33899 880 25 of of IN 33899 880 26 anything anything NN 33899 880 27 { { -LRB- 33899 880 28 87 87 CD 33899 880 29 } } -RRB- 33899 880 30 else else RB 33899 880 31 . . . 33899 881 1 There there EX 33899 881 2 are be VBP 33899 881 3 a a DT 33899 881 4 deplorable deplorable JJ 33899 881 5 number number NN 33899 881 6 of of IN 33899 881 7 lantern lantern JJ 33899 881 8 exhibitions exhibition NNS 33899 881 9 given give VBN 33899 881 10 with with IN 33899 881 11 the the DT 33899 881 12 sheet sheet NN 33899 881 13 hanging hang VBG 33899 881 14 in in IN 33899 881 15 creases crease NNS 33899 881 16 , , , 33899 881 17 dirty dirty JJ 33899 881 18 lenses lense NNS 33899 881 19 , , , 33899 881 20 light light NN 33899 881 21 poorly poorly RB 33899 881 22 adjusted adjust VBN 33899 881 23 and and CC 33899 881 24 centred centre VBN 33899 881 25 , , , 33899 881 26 and and CC 33899 881 27 occasionally occasionally RB 33899 881 28 slides slide NNS 33899 881 29 shown show VBN 33899 881 30 upside upside RB 33899 881 31 down down RB 33899 881 32 . . . 33899 882 1 A a DT 33899 882 2 conscientious conscientious JJ 33899 882 3 lanternist lanternist NN 33899 882 4 should should MD 33899 882 5 see see VB 33899 882 6 to to IN 33899 882 7 _ _ NNP 33899 882 8 every every DT 33899 882 9 _ _ NNP 33899 882 10 detail detail NN 33899 882 11 ; ; : 33899 882 12 slipshod slipshod JJ 33899 882 13 methods method NNS 33899 882 14 , , , 33899 882 15 as as IN 33899 882 16 in in IN 33899 882 17 everything everything NN 33899 882 18 else else RB 33899 882 19 , , , 33899 882 20 mean mean JJ 33899 882 21 poor poor JJ 33899 882 22 results result NNS 33899 882 23 . . . 33899 883 1 Printed print VBN 33899 883 2 by by IN 33899 883 3 SPOTTISWOODE SPOTTISWOODE NNP 33899 883 4 , , , 33899 883 5 BALLANTYNE BALLANTYNE NNP 33899 883 6 & & CC 33899 883 7 CO CO NNP 33899 883 8 . . . 33899 883 9 LTD LTD NNP 33899 883 10 . . . 33899 883 11 Colchester Colchester NNP 33899 883 12 , , , 33899 883 13 London London NNP 33899 883 14 & & CC 33899 883 15 Eton Eton NNP 33899 883 16 , , , 33899 883 17 England England NNP