507 
174 J 
ENCAMPMENT ON THE MOHAHVE RIVER, ON THE SPANISH TRAIL FROM 
FE. 
PUEBLO DE LOS ANGELES TO SANTA 
Determination of latitude, April 21, 1844—altitudes of Polaris. 
OBSERVATIONS. 
: Double altitudes of Polaris. Time of chronometer. 
Deg. min. see. h. min. sec. 
66 59 00 7 Il 13 
66 58 50 12 46 
66 57 50 14 43 
57 0S .20 16 2 
66 56 00 17 16 
66 55 10 19 02 
66 54 30 20 32 
66 54 00 22 ol 
66 52 45 23 35 
66 52 30 25 06 
Index error = — 10 sec. 
RESULT OF CALCULATION. 
True altitude. Mean time. Latitude 
Deg. min. sec. he. min. sec. Deg. min. sec. 
33 26 21 8 11 59 34 34° COL 
Determination of longitude, April 21, 1844—distance from moon’s first 
: limb to Regulus. 3 
vege. 
OBSERVATIONS WITH THE CIRCLE. 
* 
Time of chronometér. ‘. Circle reading. roe 
h. min. — see. Deg. min. sec. 
q 57 15 . 
01 22 135 34 50 
RESULT OF CALCULATION. 
True distance. Moan time:st- Gremwick: Longitude. 
Deg. ‘min. sec. h. min. sec. 
66 48 651 16 2b 35.5 a 
- = 
, : 
