MAGNETIC OBSERVATIONS. 
OBSERV ATIONS— Continued. 
Station, Camp 64, Covera ; latitude 35° 05' 22". 10 ; longitude Th. 09m. 45s. 
Needle, B. Date, November 14, 1853. Hour of beginning, 2h. 30m. p. m. ; hour of ending, 3h. 15m. p.m. 
Observer, Lieut. J. C. Ives, Topographical Engineers. 
0 , " 
56 36 
Needle vertical, face of circle north, reading of azimuth circle j 56 52 
56 35 
51 10 
Needle vertical, face of circle south, reading of azimuth circle | 51 12 
57 05 
Reading of azimuth circle when plane of instrument is in the magnetic meridian.................- 56 55 00 
Reading of azimuth circle when plane of instrument is in the true meridian 70 44 18 
Approximate magnetic declinati 13 49 IBE 
OBSERVATIONS FOR MAGNETIC INCLINATION AND INTENSITY —No. 4. 
Def. with wt. 2 gr. Def. with wt 2} gr. 
Face of circle. Direct. e 
Def. towards| Def. from Ther Def. towards | Def. fro Ther. 
the vertical. | the vertical. | Fah. | the vertical. | the vertical. | Fah. ` 
(1) (2) (1) (2) 
E BO oe ci Gus 2 ° ° , e SE, ° 
62 ` 20 87 45 36 25 76 94 45 29 23 76 
East 62 15 87. 50 WS. J. 1. 2. 94 40 29 20 lod 
062 23 87 55 UE UU O E TA 94 25 Achs ` 1. 55228 
a و‎ 88 03 d > 920 94 45 اکا‎ Las. E 
West 62 18 88 05 28 340 1 .مہ 20 29 35 94 سے ہر‎ su 
62 10 788 00 . کے‎ 81 94 38 29 17 81 
oj H Ou ° ° , ” O 
1 87 56 20 78.5 1) 94 ۰ 38 00 - 
M 62 1 ( l . (1) 
p ۳ | (2) 86 2۵۵0 | | 67 d (2) 29 17 10 ech: 
[i “ 
Cor. for index error of needle---| + 8 48 1 
o , "m 
Deduced inclination...........- 62 26 28 
o , ” ° > " 
Differences 上 30 50 Paria 65 20 50 ANA 
[9] , "n o 7 " 
Half diff. or angles of deflection 25 45 45. "kamen 32 40 as ALAS 
[o] , " o , " 
Sum of means Së, E Sy C NE 199 667-10 | oi 
° s ° ' " 
Half sum — dip Si, Ë “fo SB diese ot و کر کت ری‎ 
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