f 174] 643 
ENCAMPMENT ON THE LEFT BANK OF! PLATTE RIVER: 
Determination of ae September 16, 1842—distance from the sirst 
limb of the moon to "Jupiler. 
OBSERVATIONS. 
" (With the circle. ) 
Time of chronometer. ; Apparent distance. 
h.. =. Deg. min.  3€t. 
— 
9 42% 
9 46 
9 52 19 
9 68 61 
10 03 40 
10 , 44 
10 10 2t 
10 14 28 
10 56 ‘i 
, 10 45 : 
10 37 54 
oe 10 25 
19 42 
10 45 1 ' 837 45 50 
Thermometer 55°. 5. 
Ps 
RESULT OF CALCULATION. 
/ i it. 
True distance. | Mean time at Greenwich. Longitude. 
Deg. min, see. he. min, sec. min. 
42 07 42 ‘ 14 56 30 100 45 
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