116 EXTRA OBSERVATIONS OF MAGNETOMETERS, DECEMBER 3—13, 1845. 
BIFILAR BALANCE Gott. BIFILAR BALANCE Gott. “2 
DECLINATION. Corrected. || Corrected. Mean DECLINATION, Corrected. Corrected. Mean DECLINATIO} 
| Time. Time. 
Min “J £ Min. | Se. Div. || Min. | Mic. Div. ad. h. Min. st ¢. Min. | Se. Div. || Min. | Mic. Div. Bae Min. 8 Lae 
50 | 25 02-62]| 52 | 507-7 || 53 | 567-3] 3 13 7 | 484-5 8 | 484-5 314 
55 06-59 || 57 | 521-6|| 58 | 580-2 9 | 492-1 
0 08-45 || 2 | 484-8 || 3 | 560-7 10 | 24 52-40} 11 | 491-9 55 | 24 578 
5) 12-95 7 | 467-6|| 8 | 554-8 12 | 490-1]} 13 | 487-6] 3 15 0 | 25 02:4 
10 09-12 || 12 | 476-9] 13 | 566-8 15 50-04|| 17 | 501-6]| 18 | 487-4 5 | 25 01-2 
| 15 | 25 04-14|| 17 | 481-8] 18 | 586-9 20 45-98 || 22 | 502-1]! 23 | 474-5 *| 10 | 24 59-8 
| 20.) 24 54-65 | 22 | 511-9}| 23 | 600-0 | 25 49-17 || 27 | 514-4 || 28 | 467-3 20 | 25 02.4 
| 25 52-20 | 27 | 502-0|| 28 | 600-0 30 52-70 || 32 | 500-0|} 33 | 448-0] © 25 03-3 
30 50-22 || 32 | 507-3]| 33 | 583-8 | 34 | 488-7 : 30 02.6 
35 49-74 | 37 | 527-0|| 38 | 572-5 35 53-27 || 37 | 477-8|| 39 | 421-5 35 05:2 
40 | 24 57-37] 42 | 533-7 || 43 | 568-5 | 40 54-45 || 42 | 481-9|) 43 | 414-8 40 08-6 
45 | 25 03-81 || 47 | 520-4]| 48 | 571-9 45 53-88 || 47 | 485-9|| 48 | 411-1 45 06-1 
50 | 25 01-34]} 52 | 489-8 || 53 | 561-3 50 54-18 || 52 | 485-3} 53 | 406-7 50 03:3 
55 | 24 57-78 || 57 | 485-7 || 58 | 539-6 55 55-80 || 57 | 474-8 || 58 | 402-7 55 03-2 
0 57-34] 2 | 493-7 3 | 529-5] 3 14 0 53-88 2 | 464-7 3 | 401-4] 3 16 0 00-2 
5 52-33 7 | 486-7 8 | 526-2 A 5 53-20 7 | 459-6 8 | 399-6 balan 01. 
10 53-38 || 12 | 500-6|| 13 | 530-9 | 10 50-92 || 12 | 472-0|| 13 | 399-8 10 03-4 
15 53-88 || 17 | 504-8 |) 18 | 536-1 15 49-51} 17 | 477-2] 18 | 397-5 15 02 
20 57-28 || 22 | 498-5 |) 23 | 540-9 20 49-37 || 22 | 473-4|| 23 | 384.9 20 03-6 
25 | 24 58-82|| 27 | 495-9 || 28 | 537-5 24 | 482-6 25 03 
30 | 25 00-40|| 32 | 506-7 || 33 =r 25 | 24 56-30] 27 | 471-2|| 28 | 375-2 30 07 
35 | 25°01-72|| 37 | 496-4|| 38 | 537-9 29 | 474-8 45 07-1 
40 | 25 57-51]! 42 | 468-1]| 43 | 486-6 30 | 25 03-20|| 32 | 483-3 || 33 | 379-5 3) 17 0 05° 
45 | 25 02-08 || 47 | 438-4 || 48 | 452-7 35 | 25 05-32) 37 | 470-0|| 38 | 380-4 -_—— —_ 
50 | 25 02-69|| 52 | 454-3 || 55 | 457-3 39 | 462-3 13 4 0 | 25 14-2 
55 | 25 04-95]! 57 | 460-9 || 58 | 520-4 40 | 25 01-41 |) 41 | 448-1 10 19: 
5 | 24 43-52 7 | 533-2 8 | 517-7 42 | 451-8]| 43 | 382-7 15 16: 
10 | 24 44-50|| 12 | 541-8) 13 | 505-5 44 | 456-9 21 09: 
25 | 24 57-07|| 27 | 516-2 45 | 24 58-251! 46 | 463-0 25 07 
40 | 25 03-97 || 42 | 461-9] 43 | 509-7 47 | 471-0}| 48 | 392.2 30 07: 
50 | 24 54-59 || 52 | 477-0]| 53 | 514-6 49 | 477-9 35 08 
0 50-93 2 | 457-7 3 | 489-4 50 | 25 00-00 |} 51 | 488-8 40 084 
5 50-95 6 | 476-4 
Birimar. k=0:000140. BALANCE. k=0:000010. 
* See notes on the Aurora Borealis, after the Extra Observations of Magnetometers. 
