no 
MAGNETIC OBSERVATIONS, 
OBSERVATIONS—Continued. 
Station, Camp 76. Date, Decomber 2, 1853. 
OBSERVATIONS ON POLARIS. 
Face of circle. 
Whether observations are 
direct or by reflection. 
Time of observa¬ 
tion by chrome- 
ter No. 10. 
Reading of 
azimuth cir¬ 
cle. 
Computed azi¬ 
muth of Po¬ 
laris. 
Reading of azimuth 
circle when plane 
of instrument is in 
the true meridian. 
r 
West.-j 
1 
l 
East. \ 
1 
L 
Direct_ 
h. m. s. 
2 43 55. 9 
2 45 22. 6 
c I 
69 29 
69 28 
- / // 
31 58 
o / // 
70 00 28 
Direct_ 
Direct_ 
2 48 08 
2 49 07.4 
69 52 UJ 
1 
70 22 09 
Direct_ 
Reading of azimuth circle when plane of instrument is in the true meridian, bjanean of four observations 
70 11 18 
Error of chronometer -f- 2 h. 46m. 12. 3s. 
Station, Camp 77. Date, December 3, 1853. 
OBSERVATIONS ON POLARIS. 
Face of circle. 
Whether observations are 
direct or by reflection. 
Time of observa¬ 
tion by chrono¬ 
meter No. 10. 
Reading of 
azimuth cir¬ 
cle. 
Computed azi¬ 
muth of Po¬ 
laris. 
Reading of azimuth 
circle when plane 
of instrument is in 
the true meridian. 
West..__ \ 
1 
l 
f 
East.. -j 
l 
Direct_ 
h. m. s. 
2 24 53.5 
O ' 
69 05 
/ n 
41 08 
o ' " 
69 46 08 
Direct.. 
Reflection. 
Reflection ... 
Reflection - ___ 
Reflection.. 
Direct__ 
Direct_ 
2 27 21 
69 31 
40 02 
70 11 02 
Reading of azimuth circle when plane of instrument is in the true meridian, by mean of two observations 
69 58 35 
Error of chronometer -j- 2 h. 47 m. 02s. 2. 
