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Show [ 174 ] 316 Sl~CO I) Jo:~C.\MPMB~T 0~ TilE TIUI3UTARY TO OT.0\10~'. FORK. D.!ler minal ion of lal ilude, Jane UJ, 1 S 13-u/l it wles of Polaris. OBSE ltV A'l'ION • Douhlt• all itudl·s of Pobri~. DP~. 76 76 76 7G 76 1nlll. 4:3 46 4 50 51 Sf'C'. :J5 40 40 00 20 Index error - 10 sec. Tillie of rhronouwtcr. 1''·0 'IlL' 11. 01 08 l1 l !) 2l sec. 50 18 :36 28 14 RESULT 0}' CALCULATION. True ultituJo. D"f.{· mm. sec. 38 22 42 Mean time. lt. min. .~ec. !) 11 13 Latitude. Drf{. min. sec. :39 4~ 35 E~ ·cAMPMEN'r ON A 'rlUDUTARY TO REPUDLICAN F RK. Determination of time, June 22, 1843-allitudcs of a jjquilre. Oll RRVATIONS. FlllST S};uu:s. SECONn SE111f.8. Double oltituucs of a Time of chronom tcr. Double altitudes of a Time of chronometer. A<Juilro. Aqllllm. - DP[!. m1n. SfC, "· nti,.,. .vc. DP~. rn m . Sf' C. "· min. RrC. -19 29 10 10 26 37.0 fi1 32 10 10 39 5A.II 60 18 60 2R 41-l . () 6.') l 20 42 u2.U 61 4 l 00 32 24.0 66 16 uO 14 34.5 I - Indr error -= + 1 rnin. 25 sec. RESULT OF CALCULATION. M nn time. Advance. ft. rn in. .'If' C. h. min. Sf' C. u :30 •l2 1 05 ,, 1.5 ---- ------------- - • • • [ 174 ] , y,~CA M PM E~T ON A TTIIBUTA R TO REP1jllf.TCA FOHK. Dflfrminal ion of La I iludt>, .June 22, 1 S 13 -ttltiludes of Polaris. OihERVATIOr\ • Douhln altitutlcs of Polaris. Timo of chronomct(•r. - Dr~. min. ,<if' C. 77 :w 00 17 30 !JO n 32 20 ·,·7 :u :w 77 33 20 True altitude. Deg. mtu. sPc. as 45 22 1"0· Iudrx error =- + 1 min. 25 sec. RESULT OF CALCULATION. Mean time. l1. mm. 9 4~ sec. 15 'TIIln . srr. 50 a 52 (J!l 5:l 2'(. 61 27 56 10 I~atitudc. Drg. min. sec. ~!9 5J 59 EXCAMPMENT ON PHAIRIE DOG TIIVEH, TlUDU'fARY TO REPUBLICAN FORK. Determination of tirne, June 23, 1StJ3-altitudes of a C!Jgni. OBSERVATIO ... Douhlr altitude~ of a Cygni. Time of ch ronomctcr. De~. rrnn. sec. lt. min. ,'lfC . fi4 :tO 00 lO 09 13 0 64 1A 50 Jl 12 5 65 20 no 12 49.7 65 5L 3() 14. 25.0 66 24 40 lG l o.o ----- Index error ..... - lt) AI'C'. rn; ULT OF CA LCULATlON. Mean timo. Advlli1CI'. ''· min. ,<!('(', lt. min. .~rr. 9 07 02 1 OG !10.5 |