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LABORATORY 
 
 OF THB 
 
 INLAND RKVENUE DEPARTMENT 
 
 OTTAWA, CANADA. 
 1901. 
 
 BULLETIN No. 77. 
 EFFERVESCENT SODIUM PHOSPHATE. 
 
li 
 
 m 
 
LABORATORY 
 
 ow nm 
 
 INLAND REVENUE DEPARTMENT 
 
 BTJI/LETIN No. 77. 
 
 EFFERVESCENT SODIUM PHOSPHATE. 
 
 W. J. OtBAU), Em, Ottawa, June 10, 1901. 
 
 Deputy Minuter of Inland R^vtnn*. 
 
 ^Cr^'^^^t ^'irr."r i- • — «o.tion ^ 
 
 of Eflbrreeoent Sodium fti«XS^ c^leotion wm nuj, of ,^^1^ 
 
 jeq«e«« of • a„,.ion b/yj? p^^^,K« \« been n«de ^oon 
 been m,de th.t, occa«o.iiU SSme^L*** '[hom oompWats h^ 
 
 ^^t^T^Z^" •«" tbTS*:;: "*"**" •"formation .nppU J 
 SSHS?-^^^^^^ been 
 
 I anbioin h..«>-.-tu u_ .. ^. ..!""*•»'• Of the Britiah Pk. ' . 
 
 not oomepond ^ithThrZnh^L'!L'l!i'^^^J>^^~^^^^^ 
 .ve to recommend the ^licati^^'l^"- •PI'inded 
 
 S^^-"»^-SSS.t?Jl^^S 
 
 77—1 
 
 I h*ve the honour to be, «ir, 
 Your obedient Mrvant^ 
 
 THOMAS MACFARLANE. 
 
 Chief AnalyH. 
 
TABLE 
 RuuLTs of the EzamiiMtion of 64 8*aiplM 
 
 ' 
 
 1900. 
 
 Dw. 26 
 
 4 
 
 i 
 •A 
 
 20091 
 
 98 90O22 
 
 39 
 29 
 29 
 
 19 
 
 90 
 20 
 
 30 
 
 21 
 
 19 
 19 
 
 19 
 30 
 30 
 
 37 
 
 30023 
 30034 
 30026 
 
 1T7M 
 
 17787 
 17768 
 17760 
 
 imo 
 
 Sept. 7 
 
 19Tm 
 19764 
 
 1978B 
 19766 
 19767 
 
 19788 
 
 19769 
 19n0 
 
 19771 
 19772 
 19967 
 
 12 0*. 
 
 12 .. 
 
 Sbota 
 
 8 ,. 
 
 M oc. . 
 S boU 
 
 Mm.. 
 
 2 bote 
 
 2 M 
 
 2 .. 
 
 3 M 
 
 3 .. 
 
 1 bot.. . 
 1 .. .. 
 
 1 ,. .. 
 fib .. 
 Sbota . 
 
 i 
 
 c 
 
 9 eta 
 
 1 26 
 
 1 60 
 
 1 SO 
 1 2B 
 1 60 
 
 76 
 
 1 00 
 
 060 
 060 
 
 1 00 
 1 00 
 SO 
 
 NAVk AND Al>l>MM or 
 
 Vwidof. 
 
 Manufaetuivr, m ahown by Label 
 oa Bottlea. 
 
 Offieial Anatytt, M. Bowmtm, 
 Bali/ax, N.S. 
 
 KtntriUt, ll.a. 
 
 R. S. MMtera 
 
 IVttru, If.S. 
 
 Cruwe Broa. 
 
 Balijdx, tr.S. 
 
 O. F. ColweU... 
 
 Buckley Broa 
 
 O. A. Burbridge . 
 
 m. jtkn, ir.a. 
 
 76 The CaiuuliMi Drag Co., Ltd., 60 
 Prinm William St. 
 
 1 eolSilH MeDiumid, KintSt. . . . 
 1 30 Oeo. A. Maere, l«e Bnawl St 
 76 Umni J. Dick, 144 Charlotte St . 
 
 The CaMidian Drug Co., Ltd . 
 
 OtkM AmUftI, Br. M. FttH, 
 
 9Mt«. 
 
 1 OOlLaroohe k Ca, Fabnost St. ... . 
 1 00 W. Brunet ft Co., ISff St. Joaeph 
 St. 
 
 60 V. Qiroux, St. PetnrSk. 
 
 78 J. E. Livemoia, FabriqiM St. . 
 70 J. K Dub^, at. John St 
 
 St. B^emtke. 
 Eugene 9t. Jaoquee, CaMade St. 
 
 SStrbnt/U, ^.0> 
 B. C. Fraaer, Comiuereial St 
 
 W. H. Griffith, 121 Wellington St. 
 
 J. C. Sutherland, Main St 
 
 W. H. Griffith, 121 WeUington St. 
 
 Fnrke, Davia ft Ca, Walkerville, Ont. 
 
 J. WyMh Bna., Pbltadelphia, U.S. A. 
 
 The Toronto Dnig Company .. 
 J. Wy«th Brm.. PhUaddphia.. 
 
 Chandler ft Maaaey, Toronto and Mon- 
 treal. 
 
 H. K. Waaipoie ft Co., PhUadelphia. 
 Wyeth Broa., Philadelphia 
 
 Lyiaaii, Sana ft Ca, Montreal . 
 Wyeth Broa., Philadelj^ia . . . . 
 Lyman, Soneft Co., Montreal . 
 
 H. K. MnUotd ft Oa, PkiiMlelphU and 
 Chicago. 
 
 H. K. Wampole ft Ca, Philadelphia . . . 
 H. K. Mulford ft Co., Philadelphia and. 
 
 Chiouo. 
 WyethBrw., Philadelphia 
 
of BArrMomt Sodium Pho.ph.u. 
 
 S.S • •I WwlCnmne. 
 
 19/68 Very higfa in nihm pbimpbMU. 
 
 9 OS 47 10 
 1570 36'38 
 
 R 14 SO-02 
 
 Oeonine. 
 
 Vaiy h^ in iodiu.^. pboqjhstti 
 
 7-lJ 
 
 •odium i,SXST' '"^ *^ B. P. rt«d«| in 
 
9- 
 
 §i 
 
 TABLB 
 Rmoltc of (ba ExMBinatioa ot 64 8rap)« o< 
 
 O 
 
 "8 
 
 I 
 
 uoa 
 
 Dm. 14 
 
 » 14 
 
 M 14 
 
 .. 17 
 
 ,. 18 
 
 .. IS 
 
 .. 18 
 
 .. 18 
 
 .. 18 
 
 Sept 1 
 
 Dec. 21 
 
 ., 21 
 
 .. 31 
 
 .. 21 
 
 .. 31 
 
 .. 21 
 
 M 32 
 
 ,. 32 
 
 M 32 
 
 .. 22 
 
 Sept. 6 
 
 D«!. 18 
 
 ,. 18 
 
 i 
 
 l»7b8 
 
 irM 
 
 10760 
 
 197S6 
 
 1W67 
 
 197S8 
 l»rfi9 
 1»760 
 19761 
 
 mm 
 2am 
 
 30801 
 30802 
 20808 
 
 JXM 
 20806 
 
 20807 
 
 20808 
 3080B 
 20810 
 20777 
 
 19424 
 19425 
 
 19426 
 19427 
 
 (or 
 
 2 bote.. 
 
 601.... 
 
 3boU.. 
 
 Ibot.. 
 Sue... . 
 3boU.. 
 
 Soa.. 
 
 Sox. 
 
 16 oi.. 
 10 ot.. 
 12 ox.. 
 
 12 ox. 
 
 13 .1 . 
 
 12 .. 
 
 12 ., 
 
 I otx. 
 
 Nams axd AnnitiM of 
 
 AOH 
 
 
 OSO 
 060 
 000 
 76 
 
 100 
 
 
 75 
 083 
 
 60 T. 
 
 070 
 
 080 
 
 76 
 026 
 060 
 Sfi 
 30 
 60 
 
 1 00 
 
 1 
 
 080 
 060 
 1 00 
 
 100 
 1 00 
 
 Vemlor. 
 
 opeial AnatfM, t>r. f. X. Valmdi, 
 OUatea. 
 
 MoiUrtal. 
 Li'bwu, 486 Ht. Jmiim 8l 
 John T. I jrooi, 3 BImirjr ... 
 
 L. A. B«ni»rd, 1882 St Catherine 
 
 Ht. 
 J. H. Chari.m, 1978 Notre Dune 
 
 .St. 
 Leemiu, Mile* ft Co., St Sul- 
 
 pioeSt. 
 Kerry Wation A Co., St. Paul St 
 T. K. Hnot, St. Catherine* St.. . . 
 Parke, DaTu k Co., St Paul 9t 
 Davii, Lawrence ft Co., St. An- 
 
 toineSt 
 Evan* ft Son*, St. Jean Baptixte. 
 
 OUawm. 
 
 Q. Kenaady, Dmggixt 
 
 Toronto. 
 
 Lyman, Ijona ft Co., Montreal. 
 
 Alfred Blahop Co., Undon, XngUnd . 
 
 Vendon 
 
 Wyeth Brox., Philadelphia. 
 
 F. W. McLean, 121 Chnroh St. 
 
 J. F. Taylor, 144 Queen E. . . . . 
 R. Robinion, 318 Queen E. 
 
 (>. A. Bingham, 100 Yonrn St. . . 
 
 O. C. HarbottU, 136 Kiiw W. . . 
 
 Burgexx, Powell ft Ca, Yonge St. 
 
 feterborougk, 
 
 Ormond ft Walah, Dni|gUt. . . . 
 
 00 W, 
 
 Madill, DruMtiit. . . 
 H. H. Kdniieon. 
 
 J. Nomnt, Dr'inrUt 
 J. D. TuUy, VtiiggiMi 
 
 JWixt.. 
 
 Qffieial Analint, F. T. Barriton, 
 London, Onl, 
 
 Stratford, Omt. 
 
 E. C. Naxmyth . . 
 H. W. Thomion 
 
 London, Out. 
 
 1 OOtCaimcroM ft Lawreao^ 21(1 Dtin 
 
 daxSt. 
 80C. MoCaUum ft Co., cor. Rich 
 
 mond St 
 
 Maaulaotoier, a* xhown by 
 Botlb. 
 
 ' White*,' QuMo City Drag Oow. Afenti. 
 Lyman Bra*, ft Co., Toronto. 
 
 H.° K. WuopoU) ft Ca, Phiuddjjdik .' '. 
 
 Wyeth Bro^ ', PhiUdelphu! ..!!!. i !!! ! 
 
 H. K. Mnlford ft Ca, Philadelphia . . . 
 Wyeth Bm*., Philadelphia 
 
 Wyeth Bra-iPhiiadeipbia! .'!!!..'!!!'. 
 
 Parke, Davi* ft Co 
 
 W. H. AUao, WindKV, Ont. 
 

 o^intud. 
 
 Mlmm 
 
 «««'k»byO«d«IA».|^ 
 
 7-» «)-4» 
 8-SO 3g-S7 
 
 «■« 88-9» 
 
 •■3U W31 
 
 3'W »-31 
 
 «71. 
 
 4S-<7. 
 
 U'U. 
 
 I 
 
 P.O. 
 
 io»iuiUj 7.'""- 
 
 
 I -. "ui owuaMly oompouiKJed. 
 
 "■«7 «-86 . 
 
 Waa^Oood 
 
 »73 80-S ; 
 
 «17 82 88 „ 
 
 «io 87-as 
 
 23 13 j 2SSi(AduIt#i»t«|. 
 
 17-08 12-« 
 «■*» 24-34 
 
 5'W <«-a8 
 
 6'14 48-86 
 
 J8 86 None None . ' 
 10-36 46-07 Pre,«„.| 
 
 5'ia «-io „ 
 
 \ 81 
 ' M 78| 
 
 «.'.""■ SSSl ^""'•Jtafrted. 
 
 or...'" SffiJ . . ," 
 
 24 
 
 IS 
 
 **07 Oontaini an -» 
 
 .if; aosiof 
 
 ' '*^ Not genuine. 
 
 iSS??'?'"'- 
 
 lW88jGennine. 
 lM2r|AdulterM«l. 
 
TABLE 
 Results of the Examination of 64 Samples 
 
 NaMK AUD AUDHIM or 
 
 Manufacturer u shown by Label 
 on Lottie*. 
 
 1943012 u . 
 
 19431 12 " . 
 
 „ 20i 19432 12 M . 
 
 „ 201 19433 12 .. . 
 
 Sept. 7 19389 2 botn 
 
 Dec 10] 20793 8 o«.. 
 
 „ lO; 20794 10 .. . . 
 
 „ lo; 20795 4 .. . . 
 
 „ 10 20796 8 .. .. 
 
 Toronto Drug Ca . 
 
 60 C. Svmmonds, 468 Dundaa St. 
 
 40 W. E. Saundera 
 
 60 N. J. McDermid, Dundaa St . 
 
 60 <T. Callard, Richmond St 
 
 40,C. MoCallum, drug^t 
 
 20797 
 20798 
 20799 
 
 10 20800 
 
 Oct. 1 17271 Ibot.. 
 
 20 
 
 21524 1 lb . . 
 
 1901, 
 Jan. 221 21545 
 
 Shots 
 
 [OffieM AnaluU, E. B. Kmriak.' 
 
 j Winnipeg. . 
 
 OUavxi. 
 
 060J. J. Allen, Bank St jToronto Drug Co . 
 
 36 G. Watson, Bank St 
 
 fiO 
 040 
 
 45 
 76 
 40 
 060 
 
 Kirby Bros. 
 
 J. J. Allen, Bank St. 
 
 S. . I. Stevenson, Elgin St 
 
 A. E. Brethour, Bank St 
 
 Skinner ft Co., Wellington St. . . . i . . . ■■■■■■■■ ■■:., ; •,„;••. 
 J. J. Allen, Bank St 'Wyeth Brofc, Philadelphia . 
 
 
 Winnipeg. 
 
 1 00 
 
 W.J.Mitchell., 
 
 OfleicU AmUytt, Dr. C. J. Fagan, 
 Vieloria, B.C. 
 
 Tancouvtr, B.C. 
 
 76 J. K. Seymour 
 
 I VitUiria, B.C. 
 
 1 60 Davis Bros 
 
I — ConfinuML 
 
 of Eflferveacent Sodium Pho«ph»te— Cone/udl*'/ 
 
Labobatory op thb Island Revbnub Depabtmest, 
 
 Ottawa, June 1, 1901. 
 
 Tho8. Macpablahe, Esq., F.B.8.C., 
 Chief Analyst. 
 
 Sir,— On November 16 last, I submitted to you a preliminary report 
 upon a few samples of Effervescing Phosphate of Soda, and two some- 
 what similar, but proprietary, articles, viz. : Abbey's Effervescent Salt 
 and Eno's Fruit Salt. On account of the large differences found 
 between Sodii Pkospha* Effervesceru as occurring on the market, and 
 as defined by the British Pharmacopoeia, I recommended that a con- 
 siderable number of samples should be subjected to examination, and 
 I have now the honour to famish herewith a report upon the whole 
 number (64) analysed. 
 
 I have the honour to be, sir, 
 
 Your obedient servant, 
 
 A. McGILL. 
 
 Sodii Photphas Effervescent, or Effervescent Phosphate of Soda. 
 
 The British Pharmacopoeia prescribes the following formula and 
 mode of preparation for this article : — 
 
 Sodium phosphate, crystals 50 parts. 
 
 " bicarbonate (powder) .... 50 
 
 Tartaric acid ^' ,_ 
 
 Citric acid ^° 
 
 145 " 
 
 The crystals of sodium phosphate are directed to be dried to loss of 
 60 per cent of their weight. Since this salt contains 60-3 per cent of 
 water of crystallization, this means the practical dehydration of it. 
 The bicarbonate of soda and the tartaric acid are normally anhydrous. 
 The citric acid contains one molecule of water, = 87 per cent of its 
 weight. Calculated to dry materials the quantities named above 
 become as follows : — 
 
 S: 
 
 60 parts cryst. sod. phos = 
 
 60 
 27 
 IS 
 
 145 
 
 bicarb, soda = 
 tartaric acid - 
 citric acid = 
 
 20 pU. anhydrous. 
 50 " 
 
 27 " " 
 
 16-4 " 
 
 113-4 " 
 
 After mixing the ingredients, the mixture is directed to be further 
 dried so as to weigh about 100 parts. Assuming this further loss to 
 consist solely of carbonic acid gas, resulting from the conversion of 
 
bicarbonate o£ soda into mono carbonat*. tK. «- i j 
 coniistof:— "ivuo caroonate, the final product should 
 
 Anhydrou. lodium phnphata ^ 
 
 Bio«rbon»te of «od». . . . 30 per cent 
 
 Mono-ou'boiute of wxla W .. 
 
 TarUric acid 2S „ 
 
 Anhydrous citric acid 27 n 
 
 16 
 
 Corresponding to :— 
 
 100 
 
 CO, 
 
 HN..PO... PC. organic acid.. Na.O P.O. 
 
 HNaCO,* fS = 8-78 + 10 00 
 
 Na.CO, iS =804 +-7.90 
 
 c, H, OH (to.H), fe) « 
 
 H.O 
 
 + 1-27 
 + I'M 
 + .... 
 
 100 
 Analysis should therefore irive 
 Total 
 
 43 
 
 37 14 
 
 1000 1708 2-88 
 
 per cent 
 
 Total oiganio acids (as tartaric acid) 
 
 Phosphoric acid (as p.oT^ ' « 
 
 8oda(a«Na,0).:.. *' 100" 
 
 S?''»nJSJ»<'»<^««»(CO,)'.'.; •■ 8714 
 
 Water (H.O).:....... "OB „ 
 
 2-88 
 
 Tf . . 10000 
 
 thebicarboMteof sckiJ^ ihusToZn^^?" the organic acids and 
 
 It is further oertain^t mo" orTe^alSir "^** "** *•'*'»»•• 
 result from the i»paration"f the ntJ^niJT*'"" "" <»">P°«tion must 
 •uniform and corSnt ««• .^s^^,:^ T'^^, '"*? 8«">"1«« of 
 Besides this, it is nevitabk. th*?.^?^, ^^ *'^' Phannacopceia. 
 between the froT adds and th '^«^«'l,'e«'tion should gVon 
 that the articlJlTk^.tV.tl^k'"' Mc^^^lh"' ~d^«^-ring the^tim^ 
 
 prr^a^srhc-IH 
 
 United State. PhaT^^^i. of iggo V^T'."'''''''''*^ ^ '^ 
 nent of the eflervescent ph«nhate i.^:^C^\u°^* important compo- 
 «f soda. In proportion L wfe^ " ttrou/h"''^'"'^. ^^'^F^^ 
 organic acid with bicarbonat. of «^. ?k "•"•"8'' interaction of free 
 phate of soda will in?,2^e a't^v. i ^T''^^ ''^•«^* «* P»'«'- 
 pared sample of soAV^A^J '""^" *''?^y "''""n. • freahlv pre- 
 of its weight of P, V^irk£r"*^u"'"'"''^ '^'"'^'^ 10 P^'^t 
 for the wLe of tV 'Wciboil'^l* h""'' * "-"Ple ""ffioientiy long 
 »^ids (which are in sHgJt^^^of t^e w2hT"^- J!.'"' *'"' "'K*"'" 
 the whole of the bicarbonate^" ^ '^''"'^ *° decompose 
 
 «( i« H«„ it i, rM«SJ Sd1,SS3 ,t^ " P" ""t, b, .,«gh, 
 
10 
 
 ing approximately to at leaat 10 per oent of P. Oj. Of the 64 
 samples analysed, three— viz. : 19,426, 20,796 and 21,524 are not 
 efiforvescent phosphate. The remaining 61 show the following results, 
 so far as phosphoric acid is concerned : — 
 
 Less than 2 per oent P^Og 2 samples 
 
 II 3 ti ... 4 II 
 
 4 I 4 
 
 5 „ 10 II 
 
 6 " 13 
 
 7 .. 7 M 
 
 8 .1 2 
 
 9 M 4 M 
 
 ..10 .. 9 
 
 .,11 .1 3 
 
 .1 18 II 3 M 
 
 61 
 
 Three samples contain a decided excess of phosphoric acid, vis. : — 
 19,768, 19,770 and 20,807. These are made by an American firm. 
 
 Alkaline citrates and tartrates are possessed of purgative proper- 
 ties, and it is not impossible that the citrate and tartrate of soda preseat 
 in excess, in most of the above samples which show a deficiency of 
 phosphate, may efiBcier tly replace the latter, ao far as medicinal pro- 
 perties are concerned. Indeed the dose cf Sodii Citro-tartras Effer- 
 vescens (B.P.) k identical with that prescribed for Sodii Phosphas 
 Elffervescens. This preparation contains about 15 per cent of sugar, 
 and \.he presence of sugar in certain of the samples collected as phos- 
 phate of soda, and containing low percentages of phosphate, would 
 seem to imply a confusion of the two pr»>p«rations. But it should be evi- 
 dent to manufacturers and dealers that the two substances referred to, 
 arequite distinct, and that the purchaser of Sodium phosphate isentitled 
 to receive the article, h<) asks for, and not a S' ^stitute for it. If such 
 samples as 20,793, 20,794 and others, oonUining sugar, be sold as 
 phosphate of soda, they are adulterated, within the meaning of the 
 Act ; .while if sold as Effervescent Sodium Citro-tartrate, they are 
 adulterated, as containing phosphate of soda. It is not, however, to 
 be understood that any blame attaches to those manufacturers who 
 have, up to this time, placed on the market an article of effervescing 
 phosphate of soda, containing less (or more) than 10 p«r cent of 
 P, Og. As has already been mentioned, the preparation ipears for 
 the first time in the 1898 edition of the British pharmaooi. jia, and is 
 not contained at all in the United States pbarmacopceia. Manu- 
 facturing druggists were much in advance of the pharmaoopceias and 
 in manufacturing from private formulas they naturally uttered an 
 effervescing phosphate of variable character. Many of the samples, 
 whose analysis is here given, were doubtless in the hands of dealers 
 before the preparation became ofiScinal in 1898. Now, however, that 
 effervescing phosphate of soda has been authoritatively defined it 
 will be required of those who furnish it under its specific name 
 that they should supply the British pharmacopoeia article. 
 
 In sample 21,524, phosphate of soda has been supplied instead of 
 the effervescent phosphate. Sample 20,796 is made up with Mag- 
 nesium sulphate, and is consequently adulterated within the meaning 
 o. the Act. No. 19,425 contains po citric nor tartaric acid, and con- 
 sists of acid phosphate with carbonate of soda. Of course this also 
 constitutes adulteration. 
 
11 
 
 exact neot«li«tte.r^SirStrj, "• 'T'^f^ •*^» '''^'•«°" *« 
 the*;«.«Jting«>l„tionwX^eut.X^"':^"" boiled off, und 
 
 bonate^ f«.S whichThey ^J*lJ^S,:^"''rirri""^^^^^ ""."•'- 
 much error. It ia necewarv tTmMl. .Jt . **'*»"<' «:«d withoit 
 citric «,id. since thb^Ji^^er^/rlttf *T* \<l'^'**«ve te.t for 
 
 ««- when, judged deeta^l.Tray^^'tUt' /.^aS^h"^"' ^-^ 
 acid direcOy as acid potassium salt "timata the Urtaric 
 
 inilg'thTS'rr'.Sv.:;'?!^^^^^^ 7^> -"--t'^ "7 d-w 
 .l^^htft^r^KBH'^l^-^^^^^^^ 
 
 number much\excSr7tKi^i!i:rn'''" "'"'.f''^^' *'" «*^« * 
 soda, organic acid, and (oriJnT'^ T'" "'""' '''* ""^ ^' Pb«pb«te 
 
 tha^oo^ ThTJaSufe?th';r;^--„^^s 
 rng^x^irtsTth^t^"' 16 to.sr^rS* 'irth?.-cc^„;^ 
 
 lafger tL^'loS'irthe't. u"w ^^ .^^^i: ?"Vr'' *5f -^t" 
 contained in this column i. oonside«b1y IcS^rhan mTt -J" "Z^' 
 because sugar, or other component, ^ n^ -^ '^j J^t^^ P'S^''''' 
 the number is exactly 100 it means thit „„«^ »i. ^- ^^'^ 
 
 not been directly estimated hT^„!rliu *^.~ " w^nponents has 
 bable that th. blSSS'of sodaT!^ ^^ IL**^""-?^ '* " F^^ 
 the number given won^d^^^fn, •!? "P?«^ J ««1. in this case, 
 will include fu^r.T, if ;.^t "^t ^i^l ^--'»«nate of .oda,^ 
 has ..turned h^ ^n.ly'tsU'^^ in th^' w^.'"'' *"•' ^'^ ^'"-" 
 
12 
 
 i 
 
 O 
 
 s 
 
 i 
 
 I 
 
 :sxCsrz:s:x 
 
 ' ^ XXXXSSBCXfitSZ 
 
 S £ t Z X 
 
 ID 
 
 ■5 
 
 ■5 
 X 
 
 i 
 
 It 
 
 
 SSSS8S7 
 SS§iSS 
 
 3§ I asiss? 
 
 >3« j xbce^oiA 
 
 H 
 
 OQ 
 
 6.^ 
 
 Hi 
 
 
 RS 
 
 
 
 .•si 
 
 
 S^S'9£|SSSSSSSS3SSi3Sse^£:SSS£S8SS 
 
 
 
 S?SS3SS5gS$5S;e$S85c8aa52ffiSSafeteSS 
 ;3:5SSi!5«SJS$SS5!Si!SSSgj?8i?SgigS5S!IS5 
 
 
 
 aij 
 
 •jaqinnn; 
 
 """""""""s^-sssssssassjjsssssssssiassssssg? 
 
IS 
 
 
 : .-5 
 : -i 
 
 : J 
 
 ■ -a 
 
 
 
 5g :§ 
 
 
 8ssses!r3 ;c i ; 
 
 
 
 SiSJssjaassgjs jss?: ."ss 
 
 
 
 
 -^? «»^5?S5SSaSSfeSSSSS83S 
 
14 
 
 Apptndix. — At tb« Mine tima th*t the first ooUeotion of Effervcewnt 
 Phoephate of Sod* wm made, a few tamplea of two maoh advertiaad 
 preparation*, believed to have aomewhat aimilar aperient properties, 
 were obtained and analysed, I refer to Eno's Fmit Salt and Abbey's 
 Effsrvesoent Salt. 
 
 Ef%o'$ Fruit Salt (No. 30,778).— This sample was analysed by Dr. 
 Ellis, in October, 1900. 
 
 The following are his resvlts : — 
 
 Hodium Bicarbonate 60-01 Per cent. 
 
 Citricacid 47-11 " 
 
 Ahbey'i EfftrvMcenl Salt No. 17,372 (Kenriok),No. 19,388 (Harrison). 
 
 Sulphurioacid(SO,) 1'60 
 
 Hasneiiuk MiiO \ 86 0'8S 
 
 CkloiiUtwi to KiMom SiJta. / 6» 510 
 
 PotMh(K,0) in 286 
 
 8udaNa,0. \ U'W 19'8S 
 
 CftlcuUted to bi-nrb ..../ WW U'70 
 
 Carbon dioxide 18'67 
 
 Chlorine in Cbloridm 907 ... . 
 
 C»ne.ug»r 13 M IB S8 
 
 T»rUrio»cid 40 49 8976 
 
 The important feature of each preparation is the development, by 
 solution of an alkaline citrate or tartrate, and they resemble in many 
 respects the Sodii Citro-Tartras efferveacena of the British Pharma- 
 copoeia. 
 
 A.McO.