MAGNETIC OBSERVATIONS. 
OBSERVATIONS—Continued. 
Station, Camp 70, Zuni river. Date, November 21, 1853. 
Face of circle. Whether observations are | Time of observa- Reading of Computed azi- Reading of azimuth 
direct or by reflection. tion by chron- | azimuth cir- | f Po-| circle when plane 
ometer No. 10. pie n | of instrument is in 
۱ the true meridian. 
AC 28 Q aif | pk d CMM MT 
Direct 107 29 10 51 | 
0 Direk 1 10 28.5 | 10 52 d dee Hw A 
Reflection | | 
L| Reflection | | 
| | 
Reflection | | 
Fast Reflection | 
| Direc 1.198 45.3 11 16 ۱ € i 
L| Direct i24 عو‎ A | oe * | 12 25 33 
e | — و را ہے‎ AQUIS eo ONE Da CURIE SEAN LO 
Reading of azimuth circle when plane of instrument is in the true meridian, by mean of four observations 12 13 24 
Error of chronometer 十 24. 41m. 20s. 
Station, Camp 10, Zuni. Latitude 350 5' 41". 88 ; longitude Th. 14m. 35.565. 
Needle, B. Date, November 22, 1853. 
Observer, Lieut. J. C. Ives, Topographical Engineers. ` 
[e] , ” 
28 38 
Needle vertical, face of circle north, reading of azimuth circle j ei d 
j 28 30 
Needle vertical, face of cirele south, reading of azimuth circle | 2 = 
28 32 50 
Reading of azimuth circle when plane of instrument i is in the magnetic meridian 
Reading of azimuth circle when plane of eridian 
instrument 
is in the true mı 
OBSERVATIONS FOR VARIATIONS OF BAROMETER, THERMOMETER, AND MAGNETIC INCLINATION. 
Date. | Hoursand | Reading of |No. 790, cis- | Ther. | Ther Remarks. 
ute dip. needle. | tern barom- | Fah Att. 
eter. 
1858. A m. 0 0 o : ۱ d 
Nov. 22 | 2 15p.m 61 55 23. 8 ee Clear sky ; no wind. 
2 30 61 56 ` 23. "n CH eas 7 
' 98 FUERA . 
^ ` "i n s= 973 ۳ TL Do. 3-mile gen. Me breeze. 
& 15 61 58 23.9 70 8 کے کون اوت‎ Do. 5-mile 
3 30 62 00 23. 965 BEN LL. Do. 5-mi e eva 
3 45 61 58 23.9 ےت‎ së Do. 4-mile do. 
4 00 61 55 23.963 ری‎ e ue Do. 3-mile do. 
4 15 62 00 23. 958 55D Lo e Do. 2-mile do. 
4 30 62 00 23. 956 DEO |. Do. 2-mile de 
4 45 62 02 23. 948 BEN Le Do. 2-mile do. 
5 00 61 58 23. 940 59.0 |..--.--- Do. wind. 
5 15 62 05 23. 934 ETE ' l... Do. do. 
