455 
[174] 
: 
_ENCAMPMENT AT TLAMATH LAKE. | 
Determiziation of latitude, December 10, 1843—altitudes of Polaris. 
OBSERVATIONS. 
Double altitudes of Polaris. 
x » 
Time of chronometer. 
Deg. min. sec h. = min, see. 
88 56 10 8 25 07 én 
83 56 id 26 27 
55 27 17 
Index error = + | min. 30 sec. 
RESULT OF CALCULATION. 
True altitude. Mean time. - Latitude 
Deg. min. sec. h. min. sec. Deg. min. 
es 27 46 7 35 27 42 56 61 
é x 
Determination of longitude, December 10, 1843—altitudes of Capella. 
- e 
OBSERVATIONS. 2 
Double altitudes of Capella. Time of chronometer. 
Deg. min. see. h. sc OR 
92 56 30 8 30 05.5 ~ 
93 17 30 31 11.0 
93 38 40 32 16,0 
Index error = -+ | min. 30 sec. 
RESULT OF CALCULATION. 
h. min. sec. h. mt sec. 
22 362 S--51 4855 
¥. 3 
* 
