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Show [ 17 i J 61 -l E~CAMPl\lENT 0~ THE NOR ~'II FORK OF PLATTE IUVEU DeLerminatim~ of latitude, Jui!J 23, 1812--{t//itude of Polaris. OJJSJo: It V ATIONS. Douhle altitudu of PolariR. Time of chronometer. Dcg. 'ml/1 . :Jrr. ''· 111111 Rl't:. l:ll oo 10 I 1 !W I 8 81 ()l 20 ll 31 34. 81 02 ~0 J l :)2 4.) 84 0:3 15 1 I 3 I 67 81 04 15 I I :J;) ~0 8"1 (lfi 2.} 11 3G (10 81 07 20 l I 3~ fl7 8 I (17 9fi 1 I 40 o·t 8 t 10 00 J\ ·1=1 (14 84 1 l 51) )l 45 11 - --- . 1 In; • U I. T 0 F' C A l. C U L .\ T 10 :\' • True altitude. Mean time. Lalitutlo. h. m ·n . .'ler. De g. fill fl. s•r.. Detr, mtn. II'CI', ..... 4:l 39 %a 42 01 5~ 9 2J :J~ - - Deterntinalion of longilude, July 23, lR 12 - allitude of Jlrcturus. OllSE l~ V ATION. • Doublo altitude of A rcturUt;. Time of chronometer. -~- J,, mm. 1U. 1 ~ u l 08.0 12 02 23.0 12. 01 ~9.6 Drg. mm. 3er. 75 18 40 74 51 10 74 04 20 UE~UL1' OF C--\LCULATJON. M(an tin c. •• 9 . mrn. u:r. tl 01 "2 AJvance. m n • ll J.ongitude. 615 [ 174 ] E~GAMPMENT ON TIU~ N. FOHK OI;- PL \TT8 n.IVEH-DRIF.D MEA'!' CAMP. JJetumin alion, oj' lon,!.j·itude. ,J"I!J 25, l ·t:.-u/liludc oj' llle sun \ ~ I <~uhfo oltitud£• of the Timo of chro:lOrnC'tor Double nltilwlt of th:: Time of l'hronom<:tcr. ,....., llun'11 lower limb. Ott:. 11/1.11 . I'll'(. lt. 48 24 ('0 7 48 10 f) I) .,. 17 .J!) 50 7 H 24 10 7 47 02 00 7 - M(•nn time. - -- ;,, 'Ill in. :Jec. 5 07 41 lilll1 1 li lower limu. "' l•l. srr. /Je~ nu·, Sl'r Jli 2fi 0 tl(i 11t '10 17 0 I . II 4G 27 IJ() li' !)R ;) 4fi J l nt ) C) () 7 () 1!) !)!) 10 20 O!l o 1;) :31 4 !) -- Thcrmom<'l<'r 8 i 0 • HJ~SUL'J' OF C \LCULATJ0N. lt. m iu. ,<>rc. ~ 12 3.> -- ''· fill/ I ,\f'C. 7 21 01.1 7 21 45. !5 7 2-l 27.0 7 2:J l I G 7 21 02 0 I.ong1tuclc. ------ D'g. min. . .. rc. 1 Od 2 1 O!J Determination of latitude, July 25, 18 12-alliludc nf Polaris. OB-;EH VAT ION·. -- - - Double altitude of Polaris. Timo of chronomdcr. Drg . m'n. uc. h. miu. ,<~rr. 84· lS 211 ll 12 3~ H1 19 25 1 1 )!) 16 Sl 20 40 II 16 3l 84 21 25 84 J I 17 fl!) 23 20 11 20 [J;j RE UI.T OF C.\LCULATION. Tr e a'titu('e, fj(('" 35 "'· Mean time. 02 Latitude. Drg. min. 42 51 I • sec. 35 |