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Show ( 243] 156 .Encampment on tile rialzt bank of the LVortlt fork of Platte river-mouth of Aslt creek. DRTERl\liNATIO~ OF LATlTUDE. September , 1 42.-Altit ude of Polari ''. Observa timts. Double altitude of Po- Time of chronometer. 1ari . deg. min. sec. h. min. ~fC. ~ 42 00 11 16 29 83 41 10 11 18 59 ~3 44 50 11 21 07 83 45 30 11 23 20 83 46 [,() 11 24 57 83 48 10 11 2G 56 83 49 50 11 28 30 83 50 00 11 30 11 3 51 40 11 31 41 83 53 40 11 33 ~ -------- Thermometer, 70°.3. Index error ==- 1' 32". R esult of calculation. ~ True alti tude. .. Mean time. Latitude. de:;. min. sec. h. min. sec. cug. min. sec. 41 50 57 9 19 51 41 113 19 September 8, 1842.-Aititude of a Aquilre in the meridian. Observat·ions. Double altitude of a True central altitude. Aquil<e. deg. nun. sec. 114 25 10 deg. min. uc. 57 11 15 Latitude. deg. min. ~ec. 41 16 19 157 [ 243] .Bnca1npment on the 1\-orth fork of J>lattc 1·iver-Lou·er Caclze camp . DETERM II'." AT ION OF LATITGDE. cptcmbcr 9, 1842.-Aititude of Poln.ri~. Observations. Double al titude of Po- Time of chronomcle•·. lari". --- ,If ~ . min . sec. h. min. ser. ~l 3G 5.) ll 13 52 83 3d 10 ll 16 39 3 40 20 11 20 Ol 83 43 20 ll 23 1:3 '3 46 25 11 2i 33 ---- Index error == - 1' 32''. R esult of calculation. True a ltitude. Mean time. Latitude. d('~. min. 'k'C. h. tnl11. sec. deg. min. .~c. 41 48 40 9 li 42 4t 14 44 September 9, 1842.-Aititude of the Sun in .the meridian. O!Jser vat ions. Double all itudc of the True central allitudc . Latitude. • un'5 lower l imb. c'tg. ?li?L sec. 107 3~ 00 deg. mifl. sec. 54 02 3i deg. min. uc. 4l H li Thermometer, 94 °. |