[.a73. — 
SECOND ENCAMPMENT ON SUMMER LAK 
Determination of latitude, December 18, a iene es of Polaris. 
OBSERVATIONS. 
Double altitudes of Polaris. Time of chronometer. 
Deg. min. — sec. h. min. sec 
88 27 00 8 02 20 
88 27 40 03 50 
27 35 05 
27 40 05 iS 
88 27 30 07 38 
Ps 68 27 10 08 55 
"ss. 27-50 28 eee 
88 27 45 | 17 
. 88 27 25 12 25 
88 40 13 43 
: Index error = ++ 1 min. 37 sec. 
RESULT OF CALCULATION. 
True altitude. Mean time. Latitude. 
Deg. . min. sec. h. min. sec. Deg. min. — sec. 
44 13 34 s 25 32 42 42 37 
ENCAMPMENT ON CHRISTMAS LAKE. 
| Determinition of latitude, December 24, 1843—altitudes of Pelarse 
OBSERVATIONS. 
Double altitudes of Polaris. Time of chronometer. 
= 
h. 
6 
$ 
S 
. 
Seeeegebes 
BLSAESSSESE 
Steeasetess 
Index error — + 1 min. 37 sec. 
af 
- RESULT OF CALCULATION. ~~ as 
