110 
MAGNETIC OBSERVATIONS, 
OBSERV ATIONS-— Continued. 
Station, Camp ۰ 
Date, December 2, 1853. 
OBSERVATIONS ON POLARIS. 
Face of circle. Whether ere پا‎ are | n d TT enger of x Computed azi- | Reading of azimuth 
direct or by reflec imuth cir-| muth of Po- ircle when plane 
Ce cle. laris. instrumení is in 
| the true meridian. 
| 
Direct 2 43 55. 9 69 .29 8 
West | Direct E E 00 09. 88 UN ud LE, 
T ! | Reflection | Y d 
(| Reflection | | 
Reflection | | 
Bact Reffection | | 
1 Direct 2 6 69 52 | 
Direct | 9 49 a. is 2 69 52 | 30 09 TO 22 09 
| ۱ 
۱۰1 18 
Reading of azimuth circle when plane of instrument is in the true meridian, by mean of four observations 
Error of chronometer + 2%. 46m. 12. 3s. 
Station, Camp ۰ 
Date, December 3, 1853. 
OBSERVATIONS ON POLARIS. 
Face of circle. 
Whether observations are 
Time of observa- 
Reading of 
Computed azi- 
Reading of azimuth 
direct or by reflection. tion by chrono- | azimuth cir- muth of Fo- | circle when plane 
meter No. 10. cle. laris. f instrument is in 
the true meridian 
h. m. 8. o , , H 0 D " 
Direct 2- 24° 53.5 69 05 41 08 69 46 08 
West Direct ik 
| | Reflection - | > 
| | Reflection - ' 
! 
Reflection - | - 
Fast . Reflection - | 
Direct | + کات‎ 
Direct ۶ جو‎ 4 | 69 31 40 02 70 11 02 
Reading of azimuth circle when plane of instrument is in the true meridian, by mean of twoobservations . 69 58 35 
Error of chronometer 十 2h. 47m. 023,2. 
D 
