p i747 Ae 
ENCAMPMENT ON BIG WOOD RIVER, OR RIVIERE BOISEE. _ 
Determination of latitude, October 7, 1843—altitudes of Polaris, (with 
the cire 
7 OBSERVATIONS. 
Circle readings. Time of chronometer. 
Deg. min. sec. min. sec 
664 38 20 8 57 19 
ae -h-_e 02 33 
104 03 30 07 35 
a ee eae 10 58 
“981° «48~—Cf«40 13 «51 
wae 33 00 19 26 
mT * a 
* 22 4 = 
RESULT OF CALCULATION. 
True altitude. ~~ "Mean time. Latitude. 
Deg. min. — sec. h. min. see. Deg. min. sec. 
44 21. 45 — 43. 35. 08 
x Mean latitude 43 deg. 56 min. 21 sec. 
oe > SECOND ENCAMPMENT oN BIG WOOD RIVER. 
Determination of latitude, October 8, 1843—altitudes of Polaris, (with 
‘ _ the sextant.) : 
Saeve! = OBSERVATIONS. - 
Double altitudes of Polaris. Time of chronometer. 
? 
setsaresse 
38 
h. 
8 
eegsessster 
ms 
SeESzg 22825 
Sss8cceuegs 
. 
Seidiie'vctior on 1k St oe: 
RESULT OF CALCULATION. — 
