619 > [ 174 ) 
ENCAMPMENT ON THE NORTH. Tome oe ‘PLATTE RIVER, UPPER CACHE 
Determination oe lonpiteah, July 28, 1842—altitude of the sun. 
OBSERVATIONS, 
FIRST SERIES. SECOND SERIES. 
Double altitude of the _ of chronometer. se altitude bet tng Time of chronometer 
lower limb of the sun. lower limb of th 
ge eae es eee 
min.  s€e. he =min sec. Deg. min. — see. hi . min. see, 
12 7 2 43 20 i 9 17.7 
44 56 10 7 26 05.0 43 35 26 ‘i 29 48.0 
44 45 vi 26 36.2 43 17 15 ba 30 37.0 
44 30 20 7 27 17.5 43 05 05 ij 31 11.0 
44 15 20 ‘3 27 58.6 42 51 40 7 31 41.7 
i, “o GS Ie Sears nearer cee 
¢ _ Thermometer 80°. 5. én 
Index error = + 12 sec. <i 
RESULT OF CAL€ULATION. 
; : 
Mean time. Advance. i Longitude. 
; 
kh. min. @ sec. hk. min. sec. Deg. min. sec. - 
* 5 19 4 2a 2 15 09 | 107 ee a eae Z 
of latitude, Tuly 2 26, 1842—allitudegf 
bi OBSERVATIONS. 
Peeereregey 
sessegeege? 
HREARSRSSHSE 
RESULT OF CALCULATION. 
True altitude. Mean time. Letitieds: 
vias 
_ min. sec. Deg. min. 
6 Mot 42 50 
ty 
¢ 
gs 
om 
