TrERM-DAY OBSERVATIONS OF MAGNETOMETERS, 1845. 
Marcu 19, 20. 
73 
DECLINA- BirtLar | BALANCE DECLINA- Birmar | Bavance | DeEcLina- Brrizar | BALANCE DECLINA- BIFILAR | BALANCE 
TION. Corrected.| Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. 
a us Se. Div. | Mic. Div. ° 4 Se. Div. | Mic. Div. P i“ Se. Diy. | Mic. Diy. e f Se. Div. | Mic. Div. 
| 104, 142. 18. 22h, 
| 25 06-51 | 527-7 570-1 | 25 03-21) 535-5 467-5 | 25 06-91| 529-4 474-9 | 25 11-:84| 526-4 523-4 
| 08-56 | 521-5 573-1 01-93 | 532-8 ae 08-26} 528-0 476-6 13-52 | 523-4 524-8 
| 08-50) 522-0 573-0 00-85 | 529-9 464:8 07-60 | 530-2 477-0 13-29 | 522-1 525-2 
i 09-10} 530-7 570-6 00-77 | 524-9 465-6 07-85 | 530-1 480-5 12-43 | 517-3 525-3 
! 10-56 | 534-4 567-1 | 25 00-31) 522-4 464-1 08-92) 531-7+| 482-1 14-77 | 515-3 526-5 
| 11-05} 535-1 565-2 | 24 59-44) 519-9 . 08-32) 535-2 482-9 13-86 | 517-4 526-2 
H 3 11-71 | 535-1 563-9 | 25 00-20) 518-5 465-3 10-63 | 534-9 484-5 14.84 | 525-3 527-8 
SB} 12-78| 537-8 560-2 01-54| 517-6 467-0 10-36 | 536-8 482-6 15-51 | 515-2 527-9 
| 40 14-40} 541-4 553-1 04-39 | 516-2 470-3 09-93 | 538-3 482-6 16-15 | 513-5 aa 
| 45 15-59 | 538-6 546-8 07-34| 513-4 ES 10-67 | 538-3 484-6 14-80 | 511-2 529-9 
| 90 15-86 | 538-9 541-7 09-35 | 510-5 469-8 11-51] 537-4 485-5 15-47 | 511-9 532-5 
+ oy 17-71 | 540-8 537-9 11-99} 511-1 | x 11.62! 536-4 486-5 16-84} 512-5 534-2 
i a 114, 154, 198, 23h, 
0 25 21-46| 536-4 533-2 | 25 13-77| 515-0 468-7 | 25 12-26) 537-4 485-6 | 25 15-47| 514-9 534-4 
5 21-27 | 533-6 527-0 14-24| 515-0 465-3 11-42 | 540-1 7 13-79 | 516-8 532-5 
10 19-96| 528-6 520-1 14-51} 519-6 459-1 10:09 | 540-2 | 484-9 12-42) 518-3 532-0 
15 16-41) 529-6 515-8 14-30} 525-3 458-5 10-01 | 538-4 486-2 12-22) 521-1 532-5 
20 13-86 | 532-6 514-1 14-33 | 528-3 457-1 09-19 | 537-3 489-5 13-43 | 525-4 | 534-8 
2 13-32 | 534-2 513-3 13-91} 532-4 456-0 09-08 | 537-4 491-0 15-51) 520-8 538-3 
30 12-55 | 535-6 513-6 13-97 | 534-0 453-4 09-89 | 536-2 493-6 15-36 | 519-4 539-3 
35 11-17| 537-4 | 511-5 14-06 | 535-6 | 449-6 10-23 | 535-7 | 496-0 15-78 | 520-8 | 539-9 
40 10-72| 538-6 510-1 13-46 | 535-7 ef 10-18 | 535-7 496-7 16-38 | 522-5 539-2 
45 10-33 | 542-8 509-0 11-91 | 535-8 447-6 10-34 | 534-8 499.2 17-12 | 523-4 539-0 
50 11-37 | 538-2 508-9 10-23 | 537-5 446-1 10-74 | 533-0 502.3 17-33 | 524-2 538-5 
55 11-15] 533-0 506-9 08-73 | 536-7 Fe, 09-89 | 533-3 502-5 18-07 | 523-3 538-8 
' Tip. 16". 20%, ob, 
0 25 09-69) 530-0 506-3 | 25 07-34| 535-5 447-4 | 25 09-46| 533-9 503-1 | 25 17-94] 524-6 538-1 
5 08-11} 531-3 505:7 06-76| 536-5 451-5 09-20 | 534-1 506-4 18-37 | 528-2 536-8 
10 07-32} 534-1 504-5 06-64 | 535-1 454-0 08-82| 533-5 507-6 18-70 | 527-7 536-8 
15 06-81} 538-9 504-1 05-76 | 536-2 458-1 08-43 | 533-4 | 508-2 19-37 | 528-4 536-6 
20 08-77 | 537-8 502-6 05-38 | 537-5 Fy 08-55 | 534-2 510-7 19-44 | 526-9 536-3 
25 09-96 | 535-5 498-5 05-25 | 538-8 458-9 08-85 | 532-5 512-8 19-78 | 529-2 536-1 
30 10-27 | 532-2 496-9 05-27 | 538-0 “Fy 08-92 | 531-4 513-8 20-02 | 531-7 534-5 
3: 10-06 | 529-1 491-4 04-84 | 537-1 461-0 08-68 | 531-8 516-7 21-23 | 531-5 534-3 
09-12) 527-5 489-3 04-61 | 537-0 463-0 08-82) 531-0 517-5 21-43 | 531-2 533-8 
09-73 | 524-5 487-4 04-15 | 537-0 “9 08-46 | 531-2 519-0 21-41 | 531-4 533-4 
10-06 | 523-1 484-7 04-24| 536-8 464-8 08-92] 533-6 ~ 22-10 | 531-1 532-1 
11-10} 524-9 484-1 04-19 | 536-8 466-6 09-49 | 531-6 520-2 21-66 | 528-1 532-4 
13, lee Bins et 
25 10-60 | 527-6 481-1 | 25 04-95| 534-4 469-1 | 25 09-39| 532-0 519-9 | 25 21-23| 525-9 532-6 
09-79 | 528-4 478-4 05-08 | 533-2 467-2 09-49 | 531-7 520-5 21-10) 527-1 531-8 
09-86 | 529-5 477-0 05-49 | 532-3 471-5 10-01 | 530-9 521-2 20-85 | 526-8 533-4 
09-54| 532-4 476-8 06-61} 531-6 472-6 10-09 | 531-1 521-4 21-17| 526-1 534-6 
09-29 | 538-3 > 07-78 | 530-9 475-8 10-27 | 527-7 521-7 20-72 | 527-2 533-9 
10-20) 537-1 476-0 08-72} 531-6 475-9 09-10) 529-0 521-7 20-60 | 533-4 532-1 
09-33 | 539-6 475-2 09-32| 532-4 | 476-4 08-88 | 528-4 521-7 22-91) 546-5 530-5 
08-26 | 542-0 475-2 09-54 | 533-6 475-9 08-85 | 530-6 A 22-64 | 539-5 531-4 
07-20 | 543-3 472-9 10-09} 530-8 - 09-79 | 530-8 522-5 22-92) 539-8 530-9 
05-63 | 540-4 7% 09-77 | 530-4 473-8 10-98} 531-1 523-1 22-67 | 534-9 531-8 
04-79} 540-1 470-7 08-92 | 526-6 472-9 12-46 | 528-1 524-1 22-27 | 532-9 531-6 
03-58 | 538-3 4 07-31 | 528-8 A 11-66 | 526-1 523-5 22.24) 534-1 531-8 
Birizar. Observed 2™ after the Declination, k=0-000140. BALANCE. Observed 3™ after the Declination, k=0-000010. 
x. 194 9h—1} 0+, 
Extra Observations made. 
MAG. AND MET, oss. 1845. 
he temperature of the bifilar and balance magnets, and the observers’ initials, will be fo 
rvations of Magnetometers. 
hen double commas (,,) occur in the column for the balance magnetometer, the needle was examined, an 
ion being appreciable, the micrometers were not altered. 
und at the corresponding hours in the Hourly 
d no change from the previous 
