82 r MAGNETIC OBSERVATIONS. 
OBSERVATIONS-— Continued. 
Station, Albuquerque, Camp 59 ; latitude 35° 5’ 50"; longitude Th. 6m. 31. 47s. 
Needle, C. Date, October 17, 1853. Hour of beginning, 1h. 30m. p. m. ; hour of ending, 2h. 30m. p. m. 
Observers, Lieut. A. W. Whipple and Lieut. J. C. Ives, Topographical Engineers. 
[9] , " [e] , 7 
38 25 98 49 
Needle vertical, face of circle north, reading of azimuth circle 38-. 5 38 40 
88 14 38 20 
38 23 38 25 
Needle vertical, face of circle south, reading of azimuth circle 38 51 38 50 
38 45 88: 13 
Mean 38 27 10 38 32 50 
38 32 50 
Reading of azimuth circle when plane of instrument is in the magnetic meridian........ 38 30 00 
Reading of azimuth circle when plane of instrument is in the true meridian... --------- 51 53 14 
OBSERVATIONS FOR MAGNETIC INCLINATION—No. 1. 
With marked end of needle, N. E With marked end of needle, $. 7 
pole. S3 pole. zs 
Face of circle. B SE 
38 38 
North end of | South end of 85 North end of | South end of Bs 
š needle reads— | needle reads— š A needle reads— | needle reads— i E 
0 , " 0 , " [9] [0] 4 " 0 , " 
í 62 15 62 18 76 62 38 ۳3 98 hee 27 
East 62 28 68 30 se use . 222 62 33 $9..38— و فص‎ ae 89 
l| 62 25 eb. وو‎ - os Lag. ہے ہے‎ 62 5 62 22 72 
í 62 30 (0 5 سس اک‎ 7 62 35 EBER 35 dj cese 
“We. ced 62 28 6E ا‎ Pe tee oua 62 45 55 EE Loe eee 
l| 62 37 62 30 161 62 37 Os EE 
Means @ st" | e Y ed 62 S OIG 3 Q _...-..-- 
Mean of 4 results 620 30' 50" 
Station, Camp No. 59, Albuquerque. Date, October 17, 1853. 
OBSERVATIONS ON POLARIS. 
Face of circle. Whether observations | Time of observa- |Read'g of azi-| Computed azi- ing of azimuth 
are direct or by re- tion by chrono- | muth circle, | muth of Po- | circle when plan of 
flection. meter, No. 2475.| laris. instrument is in the 
irue vna و‎ 
A m. $. o , 0 š و‎ o EA 
West ا‎ pesa 3 21 30.5 52 40 1 00 13 51 39 g 
Direct 3 29 22.6 53 10 1 03 19 Se 
mun 1| Diet 8 52 6 42 
^D. g CONT و و ور‎ 1. pl $t E MR ھت‎ d x ER , by mean of two observat'ns.. 51 53 14 
Error of chronometer + 1m. 17s. 
