f 472). 608 
ENCAMPMENT ON A FORK OF LODGE POLE CREEK, 5,450 FEET ABOVE THE 
GULF OF MEXIC 
ee alien of latitude, July 13, 1842—altitude of Polaris. 
OBSERVATIONS. 
be Double altitude of Polaris. Time of chronometer. 
Deg. min. sec. - h. min 
80%.» 37 iP , 2 16 
S 39 50 Il 38 10 
43 1k 4L- 
Index error = + 15 sec. 
RESULT OF CALCULATION. 
True altitude. Mean time: Latitude. 
Deg. min. sec. h. min. sec, Deg. min. sec. 
40~- 190 12 9 28 50° 41 0s 34 
* Determination om longitude, July 13, 1842—altitude of a Penile. 
OBSERVATIONS. 
Time of chronometer. 
Deg. min. sec h. min. — sec. 
83>: - 36-15-90 ti 80-46 
— “ 20 1b. A. OB 
‘8 "06 40 i 7 Te 
8 41 «10 = ee Be a 18 
* ao eae Pe ey 
oz. 10 a te OS 
rere ante ut sips 
- Mean tithe: ~ a 
As wales ae, | Dew. tin. sec. 
>-4)--47- 160°" 13° 38 
