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Show [ !43 J 180 Encampment on tlw left bank of tiLe /11issouri, quartc1· of a mile btlDUt tlte ?Jzouth of lYislmabatona river. VETERMIXATION OF LATITL"DE. October G, 1 42.-Altitude of Polaris. Observations. Douhlf' :J ltituuc of Po- Tim' of chronometer. lnris. b~. mm. src. h. t11itt .~('( 82 !!2 00 10 12 50 b:2 23 20 10 J ,) 06 8'2 ~4 2;) 10 J7 O•t :2 26 2~ 10 1 55 8~ 27 ~l [) 10 20 3!.! 82 '27 40 10 C)·) -"- 0~ 8:2 2!} 55 10 ~4 09 8~ :ll :35 10 27 l.J 8:2 :i~ 30 JO 29 42 8~ :JJ 40 10 31 59 Thermomelcr, 4i0 • Index error =.: - 1' 35''. 1-lesult of calculation. True altitutlc. M0an time. Latitude. -- cit:; min. Stc. 41 1:? 03 "8· m31m . U33'r . c4lr'0:; . m1i6, . s4u0. . 181 [ 243 ] Encampme1tt on tlw left bank of tlte 1l!issouri rioer. October 8, 18,12.-Ailitude of P olari8. Observations. Double altitude of Po- Time of chronometer. lari~J. dtg. m·n. !CC. h. min. uc. tilO 4G 30 9 -46 24 80 49 00 9 49 09 80 50 45 9 51 17 80 52 2,-) · 9 53 31 80 51 !iO 9 55 31 80 fi6 35 9 58 30 80 57 30 10 00 36 80 57 40 10 02 34 81 00 25 10 05 32 81 03 10 10 0~ 31 Thermometer, 3()0 • Index error, == - 1' 2L''· Result of calculation. 'True altitude. Mean time. L:~titudc. -- . t1.l'g. min. ~f'C. h. m'n. Sf C. dfg. mill. st c. •o 25 29 8 07 10 3~ :J6 02 |