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Show [ 174 J 370 NOON IIAL'I' ON A 'T'RillUTA RY TO THE NORTH FORK OF PLATTE RIVER. Delcrmu· w 1w- n 0',Jr lc.ztitude ' 1ubn -nsl 3, 1S4:3-sun's me'ridian altitude. Douhlo ultitlldr or the sun'~; lower li 111h. ])cg. 111111. 131 2 3 scr. 00 True central a llitudr. J)ef{. min. ()f) 57 ser. 40 ludc \ error + 1 mi 11. 30 HC<'. 1 All it UOl'. /)r !{. 111 in. .9er. 11 3G 4 BNGA~1PJ\H~N'l' 0 TilE NOH'J'H FOHK OF P\1\T'l'I~ HIVER. JJctcnnt·n tttw· no.,;/ ' 10 118.1 ' tude , ., 1utn:J ·usl 5 ' l 8'l ~-altiludcs of the Stt/1. 0 Jl ' F, ll v A'l'l 0! . s. I' IIISTSf i!Jt;!o., Double nltihllk!:i of the sun'H lower Ll!nh. TiltH' or cll i'Ol)<liiWkr. Uouhk altitud•·H oftlw :·am's !own litnh. Time of chronometer. JJtg. 50 ()() 50 51 ul --· Double min. • l't:. :.1~ I{!) 1 (i ()5 57 1\0 oa 10 19 GO M can t imr · h. min.. sec. 7 :.!4. 51 /J. 8 min. .'if(', /)1!.!,'· /IIIII, ser. :w :~~J.() !)1 ~!) 00 :n 1~.0 f> I :w 10 :n 10.!3 51 !it ~() :J2 12.!) 52 () l 20 :32 11.0 !):.! lO f>O fndC\ l'n'Ol' =+ 1 tllill. 47 HC('. RESUJ.'l' OF CALC IJLAT fO~. Ad\'I:Ul('('. h. rni11. scr. l 0 01.3 h. 111 in. src. 8 ::33 06.3 :33 33.& :J.i 05.0 :H :n.o :H 56.0 Longituut'. 1) et;. min. m. 107 22 27 /)dennination of latitude-nu'ridian altitude of the sun. - uitiludt• of thll sun's lowt·r litnb. ne~. 13u Min. 18 sec. 4.G 'l'ru central nlt i(uuc. De{{. min. 65 25 - ·- .. - Latitude. --~ JJcg. 4 l min. set. 35 69 --------- 371 [ 174 ] NOON HALT ON A HIGH PLATE A t1 BETWEEN 'l'llfi WA'J'EH · Of Till~ ATLANTIC AND THE GULP <H' CALifORNIA. Determination oj' latitude, .flugust 8, 1 43-merid£an altitude of the . un. Douhlo oltitudo of the sun'H lower limb. Deg. min. sec. 127 4 7 15 Trno <'Cntral altitncle. Dcg. min. G1 09 l'C. 3 Index error=+ 1 min. 42 s Latitwlc. Dc[j. rnin . sec. -1:l 02 07 • NOON HALT AT TIH; GAP IN THE .'WEE1' WATER MOUNTAI . . Determination oj' latil ude, .Ill{ gust D, L 43-rneridictn altitude oJ I he sun. Double oltitmlo of th lower lim b. Der;. min. Sf'C. 126 36 3f> !lUll'S True cc•Jttrul altitudt.•. })rg. mm. sec. 63 31 3 Index error .... + 1 min 40 soc. J,atitudc. De~. min. .'U'c. 42 20 OG •• |