463 [ 174 49 
ENCAMPMENT ON CHRISTMAS LAKE. 
Determination of longitude, December 24, Se Ti eid of « Lyre, 
OBSERVATIONS. 
| 
| 
FIRST SERIES. SECOND SERIES. 
Double altitudes of Time of chronometer. | Double altitudes of Time of chronometer, 
a Lyre. a Lyre. 
| 
Deg. min. sec. h. min. sec. || Deg. min. sec. h. min. see. 
56 30 6 50.5 | 3 630 6 40 54.0 
56.218. 36 03.3 54 24 00 41 54.4 
55 56 20 37 — (08.3 | 54 05-15 42 52.4 
55 37 800 E 38 09.5 53 43 (25 44 00.0 
55 17 00 3910.0 =| 53. 25 30 54.0 
bd 
Index error = +- 1 min. 37 sec. 
te RESULT OF CALCULATION. 
Mean time. Advance. Longitude. 
Rees. 
h min. see h. min. sec 
6 0 36 15.7 
ENCAMPMENT IN DESERT VALLEY, AMONG BLACK ROCKY < 
° 
Determination of longitude, December 26, 1843—altitude fe a Lyre. . 
- OBSE RVATION. 
Double altitude of a Lyre. Time of chronometer. 
Deg. min. sec. o. ho mim. . 
46 49 00 6 55 
Index error = + 1 min. 40 see. 
* one : 
RESULT OF CALCULATION. 
h. min. sec. he. min. — see. 
@ “SI 13 0 34 §=—-05.5 
oi See 
” “ + 
