90 
MAGNETIC OBSERVATIONS, 
OBSERVATIONS—Continued. 
Station, Camp No. Cl, Meta. Date, November 9, 1853. 
OBSERVATIONS ON POLARIS. 
Face of circle. 
Whether observations are 
direct or by reflection. 
Time of observa¬ 
tions by chro¬ 
nometer 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. 
f 
West.-j 
East. | 
| Direct_ 
h. m. s. 
0 29 09.5 
37 10.8 
O ' " 
58 44 00 
58 43 00 
o ' " 
1 19 03 
o ' " 
60 02 33 
| Direct_ 
Reflection_ 
Reflection .. 
. 
Reflection... 
Reflection_ 
Direct_ _ 
56 28.6 
1 06 48.5 
58 43 00 
58 45 00 
1 09 18 
59 53 18 
Direct_ 
Reading of azimuth circle when plane of instrument is in the true meridian, by mean of four observations. 59 
57 55 
Error of chronometer -j- 2 h. 33 m. 00s. 
Station, Camp 63, Rio Rita. Date, November 12, 1853. 
OBSERVATIONS ON POLARIS. 
Face of circle. 
Whether observations are 
direct or by reflection. 
Time of observa¬ 
tion by chro¬ 
nometer 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.| 
Direct_ 
h. m. s. 
4 44 56.1 
O ' 
6 02 
29 54 
o ' " 
95 32 06 
Direct_ 
Reflection __ 
Reflection___ 
Reflection___ 
Reflection___ 
Direct_ 
4 49 08. 1 
6 27 
31 49 
95 55 11 
Direct_ 
Reading of azimuth circle when plane of instrument is in the true meridian, by mean of two observations- 
95 43 38 
Error of chronometer -j- 2 h. 34 m. 53s, 
