May 30, 31. 
TermM-Day OBSERVATIONS OF MAGNETOMETERS, 1845. 
June 18, 19. 
a 2m m. 
0 25 31-52) 534-6 520-8 | 25 11-96} 539-6 
6 31-75 | 538-3 523-7 12-08 | 540-4 
10 31-92} 540-1 525-5 11-91 | 542-8 
5 31-01) 536-9 526-9 11-71 | 544.2 
20 30-04] 534-8 536-9 11-46 | 545-2 
25 29-50 | 529-6 541-1 11-44, 546-9 
30 29-06} 531-7 543-0 11-21) 551-5 
30 29-14] 531-0 544-3 11-25! 552.9 
40 28-40 | 529-7 544.8 11-57 | 549-4 
45 26:35 | 529-9 545-7 12-11 546-7 
20 25-47 | 532-4 546-7 12-20, 547-6 
55 25-19| 537-0 546-6 11-89 | 547-1 
4h, 8h, 
0 25 24-73) 539-1 | 546-1 | 25 11-39) 544.4 
5 24-17] 542-6 | 544-5 11-37 | 544-3 
0 23-19] 540-4 | 545-4 10-77 | 544-4 
Ld 22-71) 545-8 | 543-0 10-14) 545-6 
20 22-65| 550-8 | 539-1 09-82} 548-3 
21-71| 550-6 | 544.4 08-79 | 549-5 
21-34] 551-1 | 543-8 07-99] 552-8 
20-89 | 546-6 | 546-1 07-98 | 553-3 
20-08} 530-6 | 551-4 08-56 | 551-9 
15 19-59| 531-7 | 552-5 09-26| 549-6 
50 18-16] 533-4 | 551-1 09-53 | 546-5 
5! 542-8 . 
5b, 9. 
0 25 17-06| 545-7 | 548-4 | 25 09-66| 546-3 
5 16-87] 546-9 | 545-8 09-86 | 545-6 
10 16:86] 540-7 | 545-8 10-00] 546-3 
15 17-24) 532-5 | 546-7 10-16 | 547-0 
20 16:70| 531-7 | 545.8 10-36} 545-7 
25 16:19} 534-5 | 543.9 10-48] 546-5 
0 16-08} 544-3 | 539.3 10-30 | 546-3 
35 16:39} 555-0 | 530-9 10-33| 546-0 
16-77] 561-0 | 529.4 10-77 | 546-2 
16-59| 560-6 | 528-7 11-07 | 546-2 
16-19] 556-0 | 532-9 11-30] 545-1 
15-14} 550-4 | 537.9 11-28] 544-6 
DEcLINA- BiriLak | BALANCE DECLINA- Birizar | BALANCE 
TION. Corrected. | Corrected. TION. Corrected. | Corrected. 
P, .f Se. Diy. | Mic. Div. ] ° s Se. Div. | Mic. Div. 
on 6. 
25 29-93) 531-5 500-6 | 25 14-40| 544-2 544-0 
31-34| 531-8 501-8 13-47 | 539-2 547-2 
33-43 | 537-2 498-4 12-75 | 536-5 550-9 
34-44 | 548-4 493-3 12-31 | 536-7 551-8 
| et 33-53 | 559-4 488-9 11-99 | 536-2 553-5 
f <3) 30-79 | 556-7 490-7 11-62} 558-4 551-7 
30 29-27| 547-0 | 496-7 11-51} 541-8 550-6 
i 29-16 | 543-5 502-1 11-51 | 543-0 549-3 
f 29-36| 537-8 | 506-9 11-44| 545-6 | 548-0 
f 30-10 | 536-0 511-5 11-52.) 545-3 546-5 
31-26 | 532-0 516-2 11-57 | 540-4 546-9 
j 31-86 | 533-7 518-5 11-82 | 539-8 544-8 
Ys 
543-2 
543-1 
540-2 
537-3 
534-6 
532-2 
529-8 
528-9 
529-2 
529-5 
527-0 
525-8 
524-7 
523-8 
523-4 
522-5 
521-5 
521-1 
521-4 
521-5 
521-7 
521-8 
522-9 
525-5 
526-9 
527-0 
525-3 
526-1 
525-2 
525-2 
526-5 
526-0 
525-9 
525-3 
DECLINA- 
TION. 
° 
25 
25 
25 
25 
, 
10-63 
DECLINA- 
TION. 
Brritak | BALANCE 
Corrected.| Corrected. 
| Se. Div. | Mle. Diy. 
10°. 
547-9 | 502-4 | 25 10-16 
| 547-9 | 501-0 10-27 
547-5 | 500-3 10-40 
547-2 | 500-6 10-34 
547-7 | 500-0 10-07 
547-8 | 499-7 09-93 
547-4 | 499.6 09-98 
546-8 | 499-5 09-56 
| 547-1 | 499-0 09-66 
| 546-0 | 499-6 09-74 
544.9 | 499.4 09:33 
546-3 | 499-2 09:56 
11%. 
546-9 499-1 | 25 09-87 
547-2 498-3 09-80 
546-9 498-3 10-03 
546-8 498-7 10-01 
545-9 498-7 09-80 
544-7 | 498-8 09-96 
546-1 498-5 10-09 
546-5 497-9 10-06 
546-1 497-9 10-00 
546-1 497-7 09-93 
545-9 497-5 09-79 
545-6 497-9 09-69 
19%: 
546-0 | 497-6 | 25 09-49 
546-1 497-0 09-39 
545-4 497-0 09-40 
543-9 497-1 09-15 
541-2 499.2 09-29 
540-8 499-8 09-20 
542-4 | 499.2 09-29 
542-9 498-4 09-05 
543-7 | 498-1 09-29 
544.5 497-6 08-97 
545:8 496-9 08-58 
545-3 496.2 08-55 
13°, 
545-3 495-2 | 25 08-14 
545-3 496-8 08-34 
545-3 494.4 07:94 
544-8 3 08-11 
544-4 494.3 07-81 
545-1 493-9 07-44 
545-1 490-8 07-99 
544-7 491-9 07-62 
544-8 -| 492-3 07-38 
545-1 492.2 06-36 
545-2 cf: 07-49 
545-3 | 489-3 06-77 
BiFILaR | BALANCE 
Corrected. | Corrected. 
Se. Diy. 
Mic. Diy. 
| 490-3 
488-9 
489-1 
488-3 
487-7 
487-0 
489-1 
489-3 
489-5 
” 
488-9 
487-9 
487-2 
487-6 
486-9 
487-5 
488-8 
489-0 
BiriLar. Observed 2™ after the Declination, k=0-000140. 
BALANCE. 
Observed 3™ after the Declination, s=0:000010. 
rvations of Magnetometers. 
| Position being appreciable, the micrometers were not altered. 
‘The temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the Hourly 
hen double commas (,,) occur in the column for the balance magnetometer, the needle was examined, and no change from the previous 
