98 ExtTRA OBSERVATIONS OF MAGNETOMETERS, FrpruARy 20—24, 1845. 
Gott. BIFILAR BALANCE Gott: BIFILAR BALANCE Gott. ; 
Mean DECLINATION. Gomrectede Gommecteds Mean DECLINATION, Gonected: Gorrectan Mean DECLINATIO} 
Time. Time. | Time. 
dh. Min. 2 u | Min. | Se. Div. || Min. | Mic.Div.f d. h. Min. x c Min. | Se. Div. |) Min. | Mic. Div. ad. oh. Min. : 4 
20 16 || 55 | 25 20-11] 57 | 530-9] 58 | 515-1} 23 12 | 58 | 24 51-66 23.19 || 30 | 25 1655 
20 17 0 18-13 2 | 534-7 3 | 511-3] 23 13 | O 52-87 2 | 528-1 3 | 505-4 35 17 
10 15-11 | 12 | 533-5] 13 | 506-9 5 55-44 7 | 533-7 8 |} 511-3 50 14. 
20 12-04] 22 | 534-8 || 23 | 507-9 10 | 24 58-47]) 12 | 531-9]) 13 | 518-4] 23 20 0 144 
30 11-96 | 32 | 532-0|| 33 | 509-5 15 | 25 01-98] 17 | 533-0] 18 | 523-3] | 20 14 
20 18 0 08-34 |) 2 | 534-5 3 | 514-0 20 04-41 |) 22 | 529-4]| 23 | 527-1] 23 21 0 1 
10 07-38 | 12 | 539-0]| 13 | 517-8 25 05-53 || 27 | 525-2]) 28 | 525-7 ] 
| 20 08-08 || 22 | 539-6) 23 | 520-3 30 05-63 || 32 | 526-8]| 33 | 523-5] 24 4 0 | 25 06.06) 
20 19}; O 09-84) 2 | 533-4 3 | 524-8 35 05-60) 37 | 528-6 || 38 | 521-2 5 08:7 
| 36 15-27 | 37 | 527-1]| 38 | 529-9 41 07-17 || 43 | 527-8|| 44 | 521-3 10 09:35 
40 15-61 || 42 | 529-2] 43 | 529-5 45 08-50 || 47 | 526-0]| 48 | 521-4 15 10:27 
53 17-93 || 54 | 534-4]) 55 | 526-0 50 08-70}| 52 | 526-0}| 53 | 521-3 30 12 
20 20 0 18-75] 2 | 529-2 3 | 527-9 55 09:76 || 57 | 526-1|| 58 | 522-7 35 12. 
12 18-50 || 13 | 526-0] 14 | 529.6} 23 14 0 09-30 2 | 528-0 3 | 525-1 47 14. 
27 17-96 || 28 | 531-1 ]| 29 | 528-9 10 09-12}) 12 | 529-3 || 13 | 526-9] 24 5 0 1 
| 40 19-91] 41 | 535-3 || 42 | 527-2 35 10-80 | 37 | 518-0]) 38 | 528-1 31 13 
20 21 0 19-44 2 | 535-2 3 a27e7 40 09.46 | 42 | 516-9|| 43 | 527-6] 24 6 O | 25 14-15 
| 15 20-97 | 17 | 540-2) 18 | 526-6 45 09-10 |} 47 | 518-8 || 48 | 529-2 58 | 24 47 
20 19-58 || 22 | 538-6 || 23 | 526-2 50 10-18] 52 | 524-6|| 53 | 527-7] 24 7 0 48. 
20 22 0 16-72 2 | 534-6 3 | 532-9 55 13-69 || 57 | 521-4|| 58 | 524-6 5 53: 
| 38 13-25 || 39. | 529-2]| 40 | 541-0] 23 15 0 15-72 2 519-0 3 | 518-6 10 56: 
20 23 0 18-01) 2 | 528-1 3 | 542-4 5 17-83 7 | 519-5 8 | 510-7 15 59: 
| | 0 22-15 2 | 526-7 3 | 554.3 10 18-82|) 12 | 521-0] 13 | 499-5 20 59 
| 20 | 22-67 || 22 | 541-7 || 23 | 551-2 15 18-63 || 17 | 519-1] 18 | 489-6 25 | 24 59 
| 30 21-37 | 29 | 525-1 20 17-68 || 22 | 517-9 || 23 | 482-4 30 | 25 O14 
| 32 | 535-8 || 33 | 554-1 25 16-97 | 27 | 517-1 || 28 | 479.3 35 | 25 00: 
34 | 536-5 30 15-54 || 32 | 520-6) 33 | 482-6 50 | 24 54 
35 21-88 | 37 | 541-2]) 38 | 552-9 30 16-41) 37 | 523-8 || 38 | 485-8 55 52. 
40 | 23-01 || 42 | 545-5 || 43 | 552-2 40 16-46 || 42 | 525-0 || 43 | 482-8] 24 8 0 50¢ 
45 | 24-08 || 47 | 542-9]) 48 | 553-5 45 17-13] 47 | 521-3 || 48 | 478-9 ial a 525} 
| 53 } 21-86 || 57 | 534-9|| 58 | 554-4 50 18-10 || 52 | 516-4 |) 53 | 477-9 10 53 
2) 2 0) 20-63 2 | 534-8 3 | 554.8 55 18-00 || 57 | 514-3|| 58 | 478-1 15 52. 
| 10 | 18-84 || 12 | 534-4]| 13 | 555-7] 23 16 0 17-36 2 | 513-4 3 | 476-7 20 49 
20 | 19-28 || 22 | 545-2|| 23 | 557-9 5 15.99 7 | 509-4 8 | 474-1 25 46: 
| 30 | 23-04) 32 | 544-1]| 33 | 564-8 10 14-44 | 12 | 508-3] 13 | 471-6 30 | 24 55 
41 | 22-71 || 42 | 538-3 || 43 | 569-4 15 12-63 | 17 | 513-9]) 18 | 471-8 35 | 25 O1: 
45 | 21-70 | 47 | 536-0]! 48 | 572-0 20 12-33 || 22 | 512-8} 23 | 472-5 40 08. 
21 3 0 17-70 2 | 530-2 3 | 578-2 25 13-19 || 27 | 513-4]) 28 | 474-7 45 10. 
30 15-27 || 31 | 542-3 ]| 32 | 583-1 30 15-14) 32 | 512-6|| 33 | 475-9 50 21 
21 4 0 17-00 2 | 541-6 3 | 576-5 35 15-88 || 87 | 516-3] 38 | 474-4 
ZL 56 0 | 11-37 2 | 529-7 3 | 596-6 40 16-23 | 42 | 522-3]| 43 | 473-1 55 12s 
10 | 25 07-98 || 12 | 528-7] 13 | 598.2 45 16-65 || 47 | 527-2] 48 | 472-8] 24 9 | O 09. 
30 | 24 59-50] 32 | 534-1 || 33 | 599.2 50 17-29 || 52 | 530-5 || 53 | 468-5 ll 16 
} 35 | 58-42 || 37 | 534-9 55 18-45 || 57 | 528-3 || 58 | 463-2 | 10 04 
45 57-24 || 47 | 527-7|| 48 | 606-3] 23 17 0 18-61 2 | 529.7 3 | 458-2 | 18 03: 
50 | 57-41 || 52 | 529-0 10 17-10 || 12 | 536-8 }) 13 | 458-8 | 20 02: 
DATE YA 0 | 24 59-41 2 | 526-5 3 | 610-0 15 16-12 || 17 | 538-8 || 18 | 458-5 | 25 02. 
10 | 25 02-45 || 12 | 529-8] 13 | 609-6 20 14-58 || 22 | 535-6]; 23 | 462-0 32 | 25 03: 
30 | 08-75 || 32 | 534-3|| 33 | 603-4 30 14:01 || 32 | 528-7 || 33 | 465-7 35 | 24 594 
21 8] 0| 14-68 2 | 539-1 3 | 588-5 46 08-08 || 47 | 534-9 || 48 | 476-2 | 403) 24 51 
Pie s9) 0 | 03-23) 2 | 546-3 3) 577-7 50 08-95 || 52 | 533-6] 53 | 481-2 | 45 | 24 584 
10 | 06-06 | 12 | 543-8] 13 | 575-2 55 09-69 || 57 | 533-6) 58 | 482-4 | 50 | 25 09-8 
| 35 | 06-29 | 37 | 544-6|| 38 | 564-9] 23 18 0 11-71 2 | 528-7 3 | 484-7 | 55 134 
2110} O 14-53 | 2 | 537-0 3 | 554-1 5 09.44 7 | 535-0 8 | 483-0] 24 10 | O 19. 
|e 10 10-56 || 12 | 531-8 || 13 | 482-7 ‘| 5 17: 
} 20 08-03 || 22 | 538-0 |) 23 | 487-0 | 10 13 
22 10 0 | 25 06-63 2 | 545-4 3 | 576-2 25 08-95 || 27 | 533-0]; 28 | 491-3 | 15 09. 
| 10 | 09-53 | 12 | 538-7 || 13 | 576-1 30 09-40 || 32 | 531-3]| 33 | 493-5 | 20 08. 
| 20 | 09-89 | 22 | 535-9|| 23 | 573-9} 23 19 0 14-57 2 | 533-8 3 | 498-0 | 25 10:28) 
40 | 10-75 | 42 | 535-8]| 43 | 570-8 10 14-53 || 12 | 532-1 || 13 | 498-5 | 30 10-70 
22 11 0) 10-36 || 2 | 533-0 3 | 571-5 26 15-32 || 27 | 531-4|| 28 502-0 i | 35 [ 09: 
BIFILAR. k=0-000140, BALANCE. k=0:000010. 
* See notes on the Aurora Borealis, after the Hatra Observations of Magnetometers. 
Feb. 234 185 20m, The declination and bifilar magnets have been moving backwards and forwards through a few divisions. 
Feb, 244 4h 5m, The instruments have evidently been slightly disturbed throughout the day. 
Feb. 244 8h 40™, Bifilar vibrating 13 se. div. 
