» 
615 
(‘174 7 
ENCAMPMENT ON THE N. FORK OF PLATTE RIVER—DRIED MEAT CAMP. 
Determination of longitude, July 25, 1842—altitude of the sun. 
OBSERVATIONS. 
FIRST SERIES. 
| 
SECOND SERIES 
‘Pouble altitude of the | Time of chronometer | Double altitude of the | Time of chronometer. 
sun’s lower Jimb. | sun’s lower limb. 
Dez. min. sec. h. min. see. eg. min. see. h. min. see. 
48 «4 (0 7 16 260 46 42 40 7 a 01.4 
48 10 4) 7 17 ole 46 Zt. AD 7 | 45.5 
47 49 50 7 17 458 5 46 Ft 5) ¥ 2 21.0 
47 24 40 7 19 070 45 55 40 y 3 23 116 
47 62 00 7 20 09.0 45 37 45 7 &@ 2. 
e 
Thermometer 87°. 
RESULT OF C \LCULATION. 
Mean time. ~ Advance. Longitude. 
h. min. see. h. min. sée. Dg. min. se, 
5 07 44 z 12 35 106 "28-09 
A ; : * 
_ Determination of latitude, July 25, 1812—allitude of Polar. 
OBSERVATIONS. 
ae : ee ‘ ioe 
Double altitude of Po!aris. Pog of chronometer. __ ys 
-— t : 
: Deg. min, — see. h. min. see. 
oo 16°" fe Doe By lima 
R4 19 25 ips 15 16 
Bt 20 It’ ~» 16 3l 
os 1 hs se aan 
Se tw se (O53 
RESULT OF CALCULATION. 
tg 9° * 03 “i pe | = if wt 
