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623 [174] 
ENCAMPMENT ON GOAT ISLAND, N. FORK OF THE PLATTE RIVER. 
iy 
iar, +3 
Determination of Iititude, July 30, 1842—altitude of the sun in the 
. meridia a 
; ‘ pS 
Double altitude of the sun’s | * True central altitude. Latitude. 
- lower limb. 
min. See. Deg. min, sec. Deg. min. sec. 
22 «30 65 «662 | as 28337 
. Index error = + 12sec. © é ot 
_ Determination of longitude, July 31, 1842—altitude of « quile. 
. 
e .OBSERVATIONS. 
— 
= did 7a 
Double altitude of a Aquila. Time of chronometer. — 
yi 
Deg. min. sec. h. min. see. 
=98 51 50 3 ol . 
99 09 30 3 04 02 
= 98 45 50 3 06 42 
LT poo 
RESULT OF CALCULATION. 
Je en eee ee ae ae a a li 
Advance. 
git, Tuly Sts} 
. OBSERVATIONS. ee 
Double altitude of « Aurige. Time of chronometer. 
Deg. min. see. 98 h. min. _ sec. 
48 «38 ——_ * 118 2 40 
% ‘ oes 
* RESULT OF CALCULATION. 
; ae = x . ¢ i at = 
a : : sae ‘ 
Moon, imme, ee Longitude. 
= h. sec. h. min. 
= or 09 > fe at . 
reper nearer semen a a eaten eran = sarin aie ‘ 
