f ExTRA OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 23—25, 1845. 99 
BIF Gott. BIFILAR BALANCE Gott. BIFILaR BALANCE 
tory cited, aes Sai DECLINATION. Corrected. Corrected. pen DECLINATION. Corrected. Corrected. 
Sc. Diy. || Min. |Mic. Div.J d.  h. || Min. | ° , Min. | Se. Diy. || Min. |Mic. Div. d. h. || Min. | ° 4 Min, | Se. Dir. | Min. |Mic. Div. 
530-9 || 33 | 502-6] 24 10 || 45 | 25 05-36 || 47 | 522-8 || 48 | 487-2} 25 4 | 10 | 25 17-44|| 12 | 541-5|| 13 | 616-0 
| 527-7 || 38 | 504-3] 24 11 0 05-79) 2 | 516-8] 3 | 492-8 15 17-29 | 17 | 548-5 \ 18 | 616-5 
2 | 527-4) 53 | 504-8 *! 10 03-07 || 12 | 526-0) 13 | 494-2 20 17-36 || 22 | 551-0 I 23 | 616-6 
9 | 529-3 3 | 507-5 15 03-20 || 17 530-0 |) 18 | 492-1 25 17-70 || 27 | 546-3 | 28 | 616-2 
| 531-0 || 22 | 511-7 20 06-46 || 22 | 534-9) 23 | 490.4 30 18-10) 32 | 539-3|| 33 | 616-3 
| 532-6] 3 | 518-6 25 09-03 | 27 | 533-5 |) 28 | 490-3} 25 5 0 15-64 2 | 544-9 3 | 607-9 
iP 4] 30 09-35 || 32 | 532.3]| 33 | 487-9 17 16-43 || 18 | 542-1) 19 | 601-8 
| 547-1 3 | 617-0 35 08-23 || 37 | 532-2) 38 | 485-7 20 16-08 || 22 | 544-1), 23 | 600-0 
7| 551-0] 8 | 615-2] 24 12] 0 08-73|| 2] 524-5] 3 | 471-1 32 | 527-5 
544-5 || 13 | 614-0 *! 10 13-22 || 12 | 525.3]) 13 | 474-2 33 | 528-2) 34 | 601-7 
| 544-5|| 18 | 611-2 20 15-61 || 22 | 533-9|| 23 | 458-4 35 13-66 | 36 | 530-8 |) 37 | 601-7 
| 544-8 || 33 | 606-1 25 14.98 || 27 | 541-6] 28 | 447-6 47 | 546-2)) 48 | 605-5 
| 546-1 38 | 604-3 30 14-11] 32 | 545-0] 33 | 438-1 49 | 545-6 || 
| 545-4 || 49 | 600-3 35 14-57 || 37 | 541-5] 38 | 433-4 50 08-79 || 52 | 542-7|| 53 | 607-8 
2 | 542-1 3 | 595-3 40 14-37 || 42 537-4 | 43 | 433-2 55 06-12 |) 56 | 544-1] 57 | 607-4 
2 | 541-0} 33 | 589-5 45 13-76 || 47 | 533-9]) 48 | 433-6] 25 6 0 | 25 05-05 2 | 543-5 3 | 609-0 
538-1 3 | 581-6 50 13-63 | 52 | 530-1] 53 | 436-8 10 | 24 58-32}} 12 | 553-0]| 13 | 609-3 
554-1 24 13 0 11-66 2 | 520-9 3 | 444-6 15 | 24 58-82)/ 17 | 551-8]) 18 | 609-4 
| 558-2} 3 | 587-9 *! 10 14-50) 12 | 531-0} 13 | 451-4 20 | 25 02-82) 22 | 542-6]) 23 | 612-7 
| 559-1 8 | 586-0 20 03-99 || 22 | 537-0|| 23 | 454-2 25 03-84 || 27 | 537-6) 28 | 603-5 
2} 561-9|| 13 | 582-1 25 00-84 | 27 | 538-2 30 04-15 |) 32 | 538-7]| 33 | 614-0 
I | 559-1|| 18 | 576-6 30 02-75 || 32 | 539-9|| 33 | 454-1 40 05-58 || 42 | 533-1 |) 
| 561-4|| 23. | 571-5 40 04-08 || 42 | 536-8 || 43 | 457-6 50 04-61 |) 52 | 530-0) 53 | 614-7 
7 | 557-0|| 28 | 569-4 55 04-48 | 57 | 530-7|| 58 | 463-7] 25 7 0 06-97 2 | 528-3 3 | 613-8 
| 551-0) 33 | 569-1] 24 14 || 0 04-61]| 2 | 529-2] 3 | 465-8 22 02-50 || 23 | 528-1] 24 | 611-1 
| 548-3 || 38 | 567-8 10 04.84 || 12 | 526-4] 13 | 467-3 30 00-53 || 32 | 535-5 | 33 | 611-4 
| 526-5 || 53 | 578-0 * 20 04-31 || 22 | 522-3) 23 | 471-5 45 04-95 || 47 | 533-2), 48 | 609-4 
| 529-9 || 58 | 576-7 30 04-58 || 32 | 516-3]) 33 | 472-5] 25 8 0 06-63 2 | 538-1 3 | 603-8 
| 534-3 3 | 575-9 40 08-01 || 42 | 510-5 || 43 | 477-2 30 11-37 || 32 | 530-9 || 33 | 604-4 
| 537-8 8 | 574-8 45 08.34 || 47 | 513-9] 48 | 480-5] 25 9 0 13-02 2 | 540-4] 3 | 593-3 
| 531-7) 13 | 573-8 50 08-85 || 52 | 516-2] 53 | 478-4] 25 11 0 13-22 2 | 530-4 3 | 527-0 
| 526-5 18 | 576-1} 24 15 0 10-20] 2 | 520-3 3 | 478-8 10 12-38 || 12 | 534-5|| 13 | 522-0 
| 528-5 || 23 | 572-1 10 12.04|| 12 | 525-3]| 13 | 487-8 15 14-50 || 17 | 542-4]| 18 | 515-8 
| 548-7 || 28 | 564-5 22 14.80 || 23 | 530-3] 24 | 491-2 20 16-15 || 22 | 548-4 |) 23 | 506-7 
548-4 || 33 | 561-7 30 18.43 || 32 | 524-1] 33 | 493-2 25 16-57 || 27 | 553-7) 28 | 495-2 
| 546-3|| 38 | 559-0 35 18-82 || 37 | 521-0] 38 | 489-4 30 16-15 || 32 | 556-4 || 33 | 484-7 
546-2|| 43 | 552-8 40 17-53 || 42 | 520-9|| 43 | 485-0 35 15-83 || 37 | 559-0) 38 | 477-6 
-551-6|| 48 | 539-9} 24 16 0 12-35) 2 | 533-1 3 | 487-6 40 15-79 || 42 | 559-7) 43 | 470-2 
) 517-2) 53 | 551-1 30 11-03 || 32 | 530-1 |} 33 | 510-2 45 16-52 |) 47 | 559-2) 48 | 462-9 
| 509-6 24 17 0 09-03 2 | 518-4 3 | 513-7 50 16-15 || 52 | 554-3 || 53 | 457-2 
| 513-1 || 58 | 550-7 20 15-18 || 22 | 511-0|} 23 | 503-1 55 15-67 || 57 | 550-4|| 58 | 453-5 
| 515-5 3 | 553-6 35 16-38 || 37 | 517-2|| 38 | 485-7] 25 12 0 14-84 2 | 544-6|| 3 | 450-5 
1516.2) 8 | 556.4] 24 18 0 16-28) 2 | 527-9|| 3 | 471-3 5 15-04 7 | 537-6|| 8 | 449-4 
18-6 || 13 | 557-2] 24 19 24 10.31 4 | 532-3 5 | 474-8 10 15-58 | 12 | 527-4) 13 | 453.7 
518.9 15 10-09 | 16 | 528-8]! 17 | 482-8 22 10-50 || 23 | 502-2) 24 | 466-4 
523-3 || 23 | 556-9 36 12-15 || 37 | 528-8|| 38 | 494-8 25 05-87 | 27 | 509-1 || 28 | 468-8 
532-4|| 28 | 550-5] 24 20 0 14.18] 2 | 523-0 3] 511-1 || 30 | 25 00-84]) 32 | 519-0|| 33 | 468.3 
521.7 15 12-02] 16 | 529.2] 17 | 511-1 35 | 24 59-95 || 37 | 524-0) 38 | 466.4 
520-2 || 38 | 538-7] 24 21 0 17:89} 2 | 528-7] 3 | 518-3 || 40 | 25 01-66 || 42 | 525.4|/ 43 | 469-1 
54-4 || 43 | 518-0 10 18-03 | 12 | 522-6] 13 | 520-4 | 45 05-45 |) 47 | 524-3 |) 48 | 471.5 
-4|/ 48 | 499-5 20 16-95 || 21 | 523-5 |) 22 | 521-1 50 07-40 || 52 | 523-3 || 53 | 472.9 
“5 || 53 | 493-1] 24 22 0 15-05 2 | 521-0|| 3 | 531-1 55 08-21) 57 | 521-6] 58 | 471-9 
0-2 || 58 | 488-3 25 13 0 06-97 2 | 528-3|/ 3 | 467-9 
1-2) 3 | 480-9} 25 3 O | 25 15-72) 2 | 547-4 3 | 616-6 5 04-98 || 7 | 534-6] 8 | 464-9 
516-3|| 8 | 477-8 18 17-49 || 19 | 542-2|| 20 | 615-6 | 10 04-10 12 | 538-4|) 13 | 465.2 
515-6 || 13 | 468-9 21 17-19 | 22 | 536-4|| 23 | 614-4 | 15 05:32) 17 | 535-9]) 18 | 465-6 
| 520-5 || 18 | 477-9 25 19-48 | 27 | 536-3 || 28 | 614-0 | 20 06-71 | 22 | 529-5 || 23 | 466-5 
| 523.6 23 | 474-0 30 17-98 || 32 | 535-7 || 33 | 609-4 | 51 10-83 || 52 | 511-6] 53 | 480-9 
516-7 || 28 | 474-5 49 21-03 | 50 | 546-3} 51 | 607-7 55 10-41 | 57 | 513-0]| 58 | 478.4 
513-0 || 33 | 480-2 52 21-26 || 53 | 546-9) 54 | 608-7) 25 14 0 09-82 2 | 520-0|) 3 | 479-3 
7 | 511-4|| 38 | 483-2] 25 4 0 21-10] 2 | 532.3 3 | 616-0 10 11-42|| 12 | 521-5]) 13 | 482-1 
BiFinaR. k=0:000140. BaLance. k=0:000010. 
* See notes on the Aurora Borealis, after the Hatra Observations of Magnetometers. 
Feb. 252 115 12™, Bifilar vibrating 10 sc. div. 
Feb. 25411517. Bifilar vibrating 10 sc. div. 
= 
} < ee 
| . Feb. 254 3h 20™, Bifilar vibrating 15 sc. div. 
