96 | MAGNETIC OBSERVATIONS. 
OBSERVATIONS— Continued, 
Station, Camp 67, Agua Fria. Date, November 17, 1853. 
še 
OBSERVATIONS ON POLARIS. 
| 
Face of circle. | Whether observations are | Time of observa- | Reading of | Computed azi- | “Reading of azimuth 
direct or by reflection. St des chrono- | azimuth cir- Po- | circle when plane 
r No. 10. cle. Mte: of instrument is in 
the true meridian. 
| Wa ی‎ cuo ab وف بس‎ 
| ا ئل‎ 3 28 67,8 20 39 
SE | | 8 29 56.1 | 20 4l Ke E 
ےت‎ ES | 
Reflection | 
| 
[x | Es 7 ۱ 
East 1 
bi BBE 52.5 20 56 
L| Direct | 8 24 22.9 | 20 9 S PT 
| 
Reading of azimuth circle when plane of instrument is in the true meridian, by mean of four observations 20 57 42 
Error of chronometer 2h. 38m. 14. 9s. 
Station, Camp 68, Inscription Rock. Date, November 18, 1853. 
OBSERVATIONS ON POLARIS. 
Face of circle. Whether observations are | Time of observa- | Reading of dieu go azi- | Reading of azimuth 
direct or by reflection tion by chrono- | azimuth cir- f Po-| circle when plane 
meter No. 10. cle. جا‎ of instrument is in 
the true meridian. 
À m. E 0 , 7 " [e] 7 m 
Direct L 09 47.5 38 47 
West 
repr sal 
Reflectio 8 
『 Reflection ža 
Red ee o l Z oe E ak Le 
East 
Direct TO 13 39 00 
l Direct 1 05 36.1 39 00 2119 29 : 40 10 29 
"D KO g f D 41. D 1 LN pl ge L fe FE 11 A. . 3° 1 by mean ën observations | 40 02 24 
Error of chronometer 2h. 39m. 24.943. 
