O ee میں‎ 
MAGNETIC OBSERVATIONS. 113 
OBSERV ATIONS— Continued. 
Station, Camp 78. Date, December 5, 1853. 
OBSERVATIONS ON POLARIS, 
Face of circle. Whether observations are | Time of observa- “Reading x Computed azi- | Reading of azimuth 
direct or by reflection. tion by chro- zimuth cir muth of Po- | circle when plane 
nometer No. 10. de laris. of instrument isin 
the true meridian, 
| 
| 
A m. 8. o ۳" , ” ° , ” 
Direct 2: IT DU 5 22 26 
Ca Hä 2 18 56.0 22 27 هد مه‎ n," A 
e Reflection - | 
Reflection - | 
| Reflection - | 
Reflection - | 
we “erasa و‎ Mc oa L Mi Be 23 41 16 
L| Direct 2 32 41.1 23 03 | 
Reading of azimuth circle when plane of instrumentis in the true meridian, by mean of four observations 23 26 02 
Error of chronometer 十 2h. 47m. 56.4s. 
Station, Camp 80. Date, December 7, 1853. 
OBSERVATIONS ON POLARIS. 
| 
Face of circle. Whether — sks are. Time of observa- | Reading of | Computed azi- | Reading of azimuth 
direct or by reflect by chro- muth cir-| muth of Po-| circle hee Soe 
beet No. 10. m laris of instrument is in 
the true meridian. 
| 
m. [e] 7 , r o , ” 
Diet تھا یی‎ boa ید‎ 2 44 5 37 HH 
ہے‎ DE کات سے‎ 2 46 10.6 | wow "m 
Gem Reflection 2 ders 
Reflection | 
Fast -........... Dir 2 48 03.1 37 40 | 36 11 88 16 11 
Direct 2 49 144 37 40 | 
i 
Reading of azimuth circle when plane of instrumentis in the t kian, 5 e s MI 
Error of chronometer + 2h. 49m. 36. 5s 
15 m 
