TERM-DAY OBSERVATIONS OF MAGNETOMETERS, 1843. 31 
JANUARY 18, 19. Fepruary 24, 25. 
DECcLINA- Brrizan | BALANCE DECLINA- Briritar | BALANCE DECLINA- BIFILAR | BALANCE DeEcLINa- Brrizar | BALANCE 
_TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected.| Corrected, 
9 Se. Diy. | Mie. Div. “ Se. Diy. | Mic. Diy. P 4 Se. Div. | Mie. Diy. Pb ’ Se. Div. | Mic. Div. | 
Qh, 6h, 104, 14h, 
25 31-99| 533-3 775-1 | 25 29-04| 540-7 767-9 | 25 20-16| 527-0 783-2 | 25 20-55| 527-1 | 693-2 
32-05 | 532-2 775-1 28-67 | 541-7 765-4 20-48 | 526-4 782-9 21-37) 528-4 699-4 
31-86 | 532-0 775-0 28-62] 541-1 766-5 21-07 | 526-9 782-1 21-98} 529-0 705-6 
31-73 | 533-7 773-6 29-41} 538-9 765-6 21-53 | 525-2 784-5 22-42] 531-5 708-4 
31-64 | 534-3 773-4 29-29) 540-1 766-0 21-82 | 523-5 784-5 23-06 | 532-4 709-8 
31-35 | 534-9 773-5 29-02} 540-6 764-9 21-91 | 523-5 785-2 23-70| 531-6 712-5 
31-32} 535-4 773-5 29-29| 541-0 764-8 22-42 | 523-1 785-9 23-86] 532-6 715-8 
31-19) 536-4 773-5 28-97 | 540-2 764-8 23-19} 522-0 785-6 24-69 | 533-8 716-1 
31-19 | 537-2 773-5 29-24] 539-0 765°8 24-08 | 521-2 785-4 25-14} 532-1 718-2 
30-90 | 537-6 773-5 29-31] 538-2 767-6 20-77 | 527-1 776-9 25-18) 533-7 717-9 
30-85 | 539-0 773-5 29-48 | 537-9 766-9 16-94 | 527-1 769-9 25-14) 534-0 | 717:3 
30-85 | 539-8 773-8 28-08 | 536-1 767-2 15-12} 526-7 764-0 24-25 | 532-9 721-2 
3h, 7h, 114, 154, 
25 30-90| 540-5 774-5 27-83 | 536-3 767-6 | 25 15-19] 527-6 760-4 | 25 23-90| 533-4 723-4 
30-83 | 540-0 774-6 27-17} 535-7 767-4 17-05 | 525-0 759-6 24-10} 535-5 724-4 
30-65 | 540-6 775°8 27-00} 535-5 766-0 19-42 | 524-8 759-0 25-09 | 536-3 724-1 
] 30-58 | 541-0 776-3 27-46 | 536-0 765-8 26-93 | 534-7 748-9 25-66 | 536-7 723-4 
20 30-18} 540-0 777-1 27-33 | 537-2 765-9 32-10) 543-2 737-7 25-14) 538-9 720-5 
| 2 30-02 | 540-4 778-0 27-44) 536.9 763-0 36-56 | 544-3 718-9 24-22) 535-1 719-4 
| 30 29-85 | 540-9 T77-1 27-74| 536-9 764-9 35-53 | 534-7 691-1 22.03 | 536-7 716-9 
howe 29-91} 541-7 778-0 27-83 | 536-7 762-0 31-07 | 526-2 670-6 21-91} 538-8 718-0 
| 40 29-85 | 541-9 779-0 27-27 | 537-0 761-9 25-45 | 524.3 667-3 21-91) 538-7 719-6 
45 29-89 | 542-7 779-4 27-70| 537-7 761-3 21-81 | 525-9 674-0 22-56 | 535-6 721-5 
| 50 29-85] 542-5 | 780-2 27-88 | 537-9 | 760-5 18-86 | 526-5 | 679-8 22.85| 534-6 | 723-7 
| 3b] 29-88| 542-3 | 781-1 27-88 | 538-0 | 758-7 16-43 | 527-6 | 684-5 24.01 | 535-0 | 723-5 
| 4h, gh 12h. 162, 
| it 25 30-00| 542-1 780-8 27-85 | 538-0 758-1 | 25 15-03] 526-9 692-5 | 25 24-50| 534-0 724-6 
29-86| 541-4 779-0 28-07 | 537-9 759-1 18-95 | 514-5 699-8 25-14) 535-2 723-5 
0 29-85} 541-4 779-5 28-57 | 537-5 759-4 23-76 | 505-7 705-8 25-32) 536-5 721-7 
15 29-62) 541-4 781-5 28-48 | 537-2 758-6 27-29) 498-0 706-9 25-07} 535-4 719-7 
20 29-62) 542-4 779-2 28-59| 536-8 757-5 32-02 | 495-2 702-1 24-40) 535-6 720-9 
25 29-38] 542-0 778-8 28-52 | 535-8 757-1 33-17 | 502-2 690-6 24-31) 536-3 721-7 
30 29-58| 541-9 778-3 27-94) 534-5 756-5 33-13 | 512-0 673-9 24-80) 534-5 723-4 
3 29-49} 541-7 777-6 27 16) 534-9 756-0 30-77 | 519-5 662-8 24-67 | 533-2 724-4 
10 29-60} 542-1 775-7 26-70} 534-1 756-1 29-11) 528-2 660-4 24-99 | 532-4 726-4 
45 29-38| 541-7 776-3 26-33 | 534-1 756-4 25-90| 537-2 659-3 26-22) 5299 728-1 
: D0 29-46| 542.2 776-4 26-06 |} 535-2 756-8 24-00 | 536-7 656-4 27-47 | 526-8 728-4 
80 29-31| 541-8 777-5 26-06 | 534-9 757-6 22-09 | 540-0 657-3 28-17 | 525-5 728-4 
i 5h, gh, 134, 17%. 
0 25 29-31| 541-5 775-9 26-48 | 534-4 758-4 | 25 20-99| 537-6 654-0 | 25 29-31] 527-0 725-9 
5 29-22) 541-3 774-4 26-79 | 534-1 761-6 18-36 | 535:3 651-5 29-78| 530-1 724-0 
0 29-26) 540-9 776-2 26-96 | 533-6 761-4 16-80} 535-0 650-0 30-39 | 526-7 723-9 
3 29-17 | 541-2 773-9 26-99 | 533-8 761-3 14-20} 535-0 648-4 31-25 | 527-0 720-8 
29-26 | 539-8 772-4 27-56 | 534-0 760-9 12-65 | 537-1 652-8 31-79 | 528-6 717-1 
29-31] 541-1 769-8 27-38 | 532-7 760-5 12-70) 538-6 656-9 31:99 | 527-5 715-3 
28-70| 542-2 769-4 26-15 | 532-2 760-7 14-70] 534-1 659-4 31-32) 529-4 712-0 
28-59 | 542-0 769-1 24-72 | 533-9 760-5 16-33 | 532-6 663-6 31-12) 531-8 710-9 
29-04} 541-8 767-5 24-55 | 533-7 762-8 17-91 | 529-4 668-3 30-65 | 534-3 708-6 
28-95] 541-4 771-1 24-94! 535-0 763-8 19-36 | 526-5 675-2 30-58 | 536-9 706-0 
{ 29-01 | 540-1 768-5 24-80 | 533-8 765-5 19-98 | 524-2 680-8 29-38 | 538-7 703-5 
29-11} 540-7 767-4 24-87 | 533-6 766-1 19-86} 526-5 686-2 28-50} 539-5 701-1 
im ..-----| 2 3 | 4 a he 7 | 8 | 9 | a0 ]20 | a | 12 |.13 | 14 | 15 |-16 | 7 
TAR THERMOMETER, . | 58-3 | 58-3 | 59-0 | 59-8 | 60°3 | 60:6 | 60:3 | 59-7 | 69-2|52-7 | 52:3 | 52:0 | 53-1 | 53-1 | 58-0 | 53:0 | 53-0 
Axce Tuenwomnren, . | 60-0 | 598 | 603 61-0 | 61.5 620 | 61s | 60-9 | Go-s]5e2 | 541 | 549 | 55:3 | 55-0 | 55-2 | 55-4 | 55:5 
eRver’s INITIAL, . . | B|s]u]uai|w | w | p|op D | plolofiw | wilwiw 
Bririwar, k=0-0001205. Observed 2™ after the Declination. 
BALANCE. k=0-000015 approximately. Observed 3™ after the Declination. 
February Term. For observations before and after this Term, see Hxtra Observations. 
