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Tous les autres exemplaires origmaux sont film*s en commenpant par la premiAre page qui comporte une empreinte a'impression ou d'illustration et en terminant par la derniire page qui comporte une telle empreinte. Un des syn-;boles suivants apparaTtra sur la derniAre image de chaque microfiche, selon le cas: le symbcle — »- signifie "A SUIVRE ', le symbole V signifie "FIN". Les cartes, planches, tableaux, etc., peuvent etre filmAs A des taux de reduction diffArents. Lorsque le document est trop grand pour etre reproduit en un seul clich6, il est filmA i partir de I'angle supArieur gauche, de gauche k droite, et de haut en bas, en prenant le nombre d'images nAcessaire. Les diagrammes suivants illustrent la mAthode. 1 2 3 MICROCOPY RESOLUTION TEST CHART ANSI ur>d ISO TeSl CHAPl Nu 2 1.0 I.I ■If 2 8 nil 2.5 3? I 2.2 I 2.0 1.8 .25 1-4 i 1.6 ■= 'IPPLIED IKA^DE Inc %l* v*^"^^-- rrniJCATioNs . :!i;{S .',>--ir .VV'S, 6--I(r ti'. „iMfi, :> JS. type Bai wa> aniuMiiicrd a >p('clrM-co])ic l)iii;nv l)y Adams fidiii luur |>lat<< giviiiR a raiicc >)f 'JOl km. iAstroiihii^iail .loiiriiiil. \'(,1. XXW. p. ITiii. Tlic linos of the spectrum arc \Try poor, and it- declination hcinn far Miutli, it wa- dulicult to secure pood [)latcs, and more difiiciiit to M'cure plate- when \\anl..l. 'l"hc determinal ion of the orint was '•''"*■'' ''" ■'! plate- taken in the laM two -eaeen li\ the \clocity cnr\-e. that the rc.-iduals of the normal place- aiv hijili at jioinls near the zero \clocity line. 'I'liis is dui- no ''""''' '" '!'<' other comiionenl. as on -e\-eial of the plates there was a sujr^cstion of douMinii in > tlie weaker <'oiii|)oneni measurable. I'late re>iduals are IukIi. hut. considering tliat on st>me plates the \-e|oeiti,.s jriven hy the ditVer ' lines \ary to the .>xtent of as nmch a< 70 km., hitih residuals are to he expected. The ohservations follow: Table 1 fjives Adams' oh-ervatioiis. Table 11. the Ottawa observations. The lesiduals are from the Imal curve. ■|'\Hi.i-: I .\1).\.\1S' (lliSIKVATlDNS Da IP 1911. IVl) 7 'til .Mar. 11 N.-,l Mar LMM:; April r.' 7s|t MT 403 P04-08 54046—1 liili^ii Day \ Iiirity It.M.l.lM J. Il;i,ii7."i w III - Iti -!.■) |e7 s.-,l -llli -r '.l-."l r_'ii s-14 -r- *^.' - S !! i:;<.i 7.s<.i - Jl -JIMI IJG I'l HI II. \I|MN> (i| nil. |)iiMI\|.i\ ii!i>i:i;\ vl'tJilV lAI'l.l II (I'll \\\ \ I'l:--! |;\ \ r|(i\- I'lat. I Ih-i l\i l' l):,I. ill..:. I):l\ I'll: WritI" \.l...ll.v KcM.l.lul I'lH. t.l.N 1.11 ■i;|- ■i;i- '«;« V.t:! V.|i, ■.,.■.1 !ii;.. SM].- Ml.N MIV!. Md'i si:;j M:;: M !". si.-);j MTI 1 .1. -'■'. 7i.o J IJIi. i|7 7i.o II |sj .M.I i: 7i'i i|n 7l'i II ,".!l.' Mm, JJ 7l:; If. 71.; 1 llsl M:u ■_'.; I.S7 i|r. i)s7 11 .■..M M:,r, :;ii 1.7'. 1"..; t;7.". II IIJ. April J ''7_* 1"..; r.7i.* II 01 1 .\|.nl 111 l,.'.l. M.l i..-.(. II Is:, .\|.nl 1 1 l.'.s II .s h.^S 1 17'. .\l.r,l i:. 7iis ii.'.j 7iiN 1 iiji .\|.nl rt t'.so i7.'J-t;Mi II Iss ^h,.^ _' r.iM, is'ltini. 1 :;'.ii M:.v 1 t'Us INS t.llS 1 1 : ;.si .M:.v s (;iK I'lJ'.l.'N 1 :;7' ^\:,^ '.It.:;.*. I'l,; I..;.-, II '.ml M:..v ■Ji ".71 J.l.'l .IIS ,-.;i II s|. .M:l\ .;i !■.!! ii:. 1.1 1 (i:;:;: I).,. I'l •«..". .". 7 ■ ', ii ..'. 1 -'71 1),,- .'.". '".1 jj:; 'n;! 1 J'.: |). . ,'v 'ir.:; jj';-'.'!.:; 1 J."' .I:.ll Ji. (Us |V1, 1 sj.; .M,:l '_' 7:; ! M;.r. U tii'i .M.r. ::n ti.".7 .Vl'ii :; i.sN A|.n ii. i;ii .\; !■' _'l r.i,. 1 Apn _'J r.:;!' \l.r. 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Ill JN .".J 'M> 't III t D.t t Kil li; II '.'ii (lS( iil'h ltl\vlf\ IUi>> 1! ;> i:n \ll \>l 111 > (l| llll^- ll.lH ( .,„./ I..I > 1 ;,> Mi.'i M7' \ . 1 W 1 \ \ . 1 W 1 Nil \Vi \.| Wi \.| \\l \ (IMS II III «.ll(l ••'II 1 Hi .'iJ 1 Mr.' 7" > Mil :UI < IJ.-. .'ill 1 HK ■.'■.' 1 7s 'i.i ' IH HI t 1)7 .III 1 :i:i 1.-. 1 !l.i l> 1 IIIK 7.". . I(. IS \\r,Kl>l<-l tliriin \. \,l Ciirv t HNi r.."i - IJ .'..1 INI .'s 1 .".7 17 _'J OJ III 1 VJ Ml -M JO (HI Itncliul Vi liK'ily 1 S7 N +;j.-. 1 ,l,\ II i;i2 I'l IU.lt AIIHN> ol nil. IMl.MI.MoN (i|l,sl,l(\Aln|M 'I'hc ;{1 oh^i'iNMlioii-- were tiiinipcd into nine iioniial |)l:i a> I'cdluw- N(ii:\l \l. I'l.Ai 1 > .luli.'in l):iv I'l.a- Vc'lnnt\ Uritlil li.'si.in:.! J.tL'l.Hll :!71 J17 :;()4 (I7> llt.J .'. ijo '.p.'is 7i;n ■J,t.'l.-".tl :i4N imi ii7(i 1(K) 7.''l lljli 7.'i(l Js7 .VI'J I i)7:i I -.'I ill i:i7:i {) (HI7 II i:.o II JU II 4_''.l II .'iM II ^.'li f :is.:i IIMi ."i 117 I MO - .Vi S • .">7 r M.")0 t- 1114 II 1 II •J II - 1-' 4 - SJ + ■2 1 t- 7-7 • 4 .■! IIS -t IJ 7 - (I ■-• - li-2 B>' wsitiK tlif Miiunt Wilsdii iil)s(M-\:iti iiiftlind. They wcri': K = 11.') km. . = •().■) a> = 1 !».")- 7'J= .1. I). l.'.42(l.',ll7lKil 7 = — 1 4.") km. Okc h'ast-siiiiarcs snkition wii.-< carried thrminh. the vahic of the iicriod being taken as fixed and omitted from the sohition. The lesuhinn eorreetions are smalh hut the vahie of L'/icr wa.< reihiced about 'M\ per cent. The correeted \alue> of the elements are ni\en tielow with the jirobable errors a|)])endeil. a: = lis- 111 km. + SO km. r = OTS ± OOS-J w = IS.j'-OS i (I ■.■)4 7' = .1. 1). •_',4_'O.U17:.7;i t (i;}^ day 7 - + 1 Tit km. ± -T'J km. /' - i:)();<()7 days (I sli, I = •J,4:{:),0(H» km. t)i, siir / (I ••_>.-) O I'lolialih' I'lror of ^innie piati i:'« km. Dominion ()b>er\ator\' Otlaua June. i'.ilT. iHnri (IF I'lii. si'i.crnoscoi'ic niwRV noss iii.is 133 3 TaSM OODblSll >fr 403 P04-03 1 5 Mh ;399A#>