34 TERM-DAY OBSERVATIONS OF MAGNETOMETERS, 1843. 
Gottingen Marcu 22, 23. ApnriL, 19, 20. 
Mean Time 
Declination DECLINA- Brrirar | BALANCE DECLINA- Brritarn | BALANCE DECLINA- BIFILAR | BALANCE DECLINA- Biriian | Bawa 
Observation. | TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corree! 
Min. se) v Se. Div. | Mic. Div. 3 ‘ Se. Div. Mic. Diy. ic “ Se. Div. | Mic. Div. 2 i Se. Diy. Mie. Div! 
Qh, 6b. 10%, 14h, { 
0 25 31-83 | 533-2 695-9 | 25 24-87)| 535-6 724-6 | 25 23-09| 543-8 683-9 | 25 20-57| 539-7 
5 31-99 | 535-6 695-3 24-11 | 530-8 728-0 23-24| 543-9 684-2 20-52) 539-9 
10 31-71 | 533-8 696-5 22-15| 528-5 730-9 23-10} 543-6 691-1 20-57 | 539-8 
15 31-86 | 535-0 694-9 21-28] 536-9 732°8 23-03 | 543-8 690-8 20-45 | 539-7 
20 32-05 | 537-6 693-4 22-79| 533-1 735-9 23-10} 543-9 690-1 20-57 | 539-9 
25 31-93 | 535-4 | 694-8 22.49| 531-9 | 739-3 23-03| 543-0 | 691-0 20-70| 539-7 
30 32-10} 538-7 694-8 18-75 | 536-8 738-0 22-92} 543-6 691-0 20-54) 539-0 
35 31-79 | 535-7 695-7 13-44 | 542-5 737-2 23-06 | 544-1 691-7 20-57 | 538-9 
40 31-77 | 537-0 696-1 13-17 | 547-0 739-5 23-06 | 544-6 692-2 20-57 | 538-8 
45 31:48 | 540-9 694-2 15-36 | 544-7 739-9 22-85 | 544-7 f) 20-43 | 538-7 
50 32-20 | 541-6 695-8 16-84 | 537-3 740-8 22-80) 544-7 692-2 20-27 | 538-7 
55 31-61) 540-2 697-9 16-80 | 538-8 737-5 22-72 | 544.3 BS 20-45 | 538-6 
Bhs aa tiie 1p 
0 25 31-:56| 539-8 698-1 | 25 16-87] 530-6 735-4 | 25 22-62| 543-7 692-3 | 25 20-30) 535-4 
5 31-16 | 539-9 697-7 13-82 | 547-3 726-0 22-83 | 544-1 Ay 20-57 | 538-1 
10 30-96 | 538-1 6968 13-77 | 552-0 723-3 22-80 | 543-9 A 20-57 | 538-1 
15 30-56] 538-1 697-0 15-76 | 552-4 723-6 22-62) 543-1 oe 20-57 | 539-0 
20 30-36 | 540-0 697-2 17-67 | 546-3 724-4 22-58 | 543-0 7 20-63 | 539-1 
25 30-39 | 540-7 697-7 18-86 | 544-0 724-6 22-67 | 543-0 on 20-43 | 538-0 
30 29-91) 538-4 698-9 20-23 | 539-3 725-2 22-60} 542-8 688-0 20-35 | 537-5 
35 29-91] 540-2 698-4 20:57} 540-9 721-2 22-58 | 542-8 5° 20-43 | 537-9 
40 30-12) 540-9 698-6 20-54) 539-2 722-3 22-58 | 542-7 9 20-10} 537-4 
45 29-88} 541-4 698-8 21-28) 538-1 725-3 22-58 | 542-7 “r 20-03 | 536-9 
50 29-55 | 541-8 699-0 22-02| 538-9 718-7 J eee eee 542-8 687-2 20-10} 535-5 
55 29-31] 542-1 699-7 22-63 | 539-3 719-0 22-62 | 542-5 ry 20-43 | 533-0 
4h, gh, 12h, 16%, 
0 25 29-01| 540-5 701-0 | 25 23-43| 539-3 717-9 | 25 22-58| 542-3 686-9 | 25 20-30) 533-8 
5 29-19} 544-8 700-7 24-13) 538-5 717-5 22:52) 541-8 S 19-96 | 534-9 
10 29-12) 543-0 701-7 24-48| 537-7 716-0 22-55 | 541-4 3 20-34] 536-3 
15 30-53 | 542-7 699-9 25-14) 536-0 716-0 22-47) 541-4 3 21-17) 534-1 
20 28-37 | 540-3 701-3 25:34| 536-4 714-6 22:40} 541-5 691-1 21-24] 534-8 
25 27-83 | 536-7 701-5 25-16| 536-8 713-2 22-32) 541-5 3 21-17) 534-8 
30 27-91) 537-2 703-3 25-39| 535.2 713-1 22-18) 541-0 " 20-97 | 535-7 
35 27-70| 538-3 703-3 25-68) 534-7 713-1 22-20] 540-5 “f) 20-90 | 535-7 
40 27-90} 540-8 705-4 25-68 | 534-9 712-9 22-23 | 540-6 689-1 20-57 | 537-4 
45 28-23) 539-4 704-9 25:81] 535-6 712-9 22-25 | 540-8 7 21-10} 536-7 
50 27-09) 539-4 705-1 25-90} 536-0 711-4 22-11} 540-8 ” 20-63 | 535-6 
55 26-97 | 537-2 704-8 25-86 | 536-8 710-1 22-23 | 540-8 21-17} 535-4 
pus gh, BL 172. 
0 25 27-33| 549-6 704-0 | 25 25-79| 537-1 710-3 | 25 22-11] 540-5 687-2 | 25 21-10] 535-6 
5 27-41 | 545-1 712-3 25-95 | 537-5 709-4 22-08} 540-3 686-9 21-17| 536-1 
10 26-72 | 538-0 712-6 25-88 | 537-9 707-9 22-05 | 540-2 686-5 21-17| 535-9 
15 26-48 | 537-0 710-5 25-75 | 537-8 708-4 22-29 | 539-7 686-2 20-87 | 536-9 
20 26-28 | 538-2 711-5 25-46 | 538-2 708-2 22-13] 540-0 op 20-81 | 537-0 
25 26-32) 536-5 714-2 25-18} 537-9 706-8 21-95} 540-0 re 20-63 | 536-9 
30 26-62 | 538-2 712-4 25-12} 538-2 705-1 22-02) 540-3 687-8 20-77 | 537-5 
35 26-55 | 540-5 711-9 25-18| 538-0 704-7 20-70) 540-3 ae 20-87 | 536-6 
40 26-72 | 545-2 713-3 25-05 | 538-0 704-2 20-61} 540-3 687-1 21-37) 534-9 
45 27-11) 544-9 714-4 24-77 | 536-9 704-0 20-57 | 540-2 686-8 21:51] 534-6 
50 26-15 540-5 714-2 25-02 |. 538-1 703°5 20:95 | 540-1 686-5 21-44} 533-6 
55 25-75 541-1 719-0 24-67 | 537-0 703-3 20-70) 539-5 685-6 20-79 | 534-3 
oe, 0). |. 4 ic a [xa eal ae is jor | 8 | 99 10 J 10 | 11 | 12 | 1s | a4 | 15 | 16 
Birizar THERMOMETER, . | 53-2 | 54:0 al 54-4 | 544 | 54-2 | 54-4 | 543 | 54-0 | 53°7 | 58-7 | 585 58-0 | 57-2 | 568 | 560 | 555 | 546 
BaLaNcE THERMOMETER, | 53-4 4°2 5 58-0 | 57-5 | 56°6 | 56:0 55rd 
OssERVER’s INITIAL, . | Wil wi geen eee |e ep i a | ol a jee | pele BE 
Biritar. Observed 2™ after the Declination. k=0-:0001248. 
BaLance, Observed 3™ after the Declination. &=0:000015 approximately. 
April 19413b, When double commas (,,) occur in the column for the Balance Magnetometer, the needle was examined, and no change from the previous obsel 
tion being appreciable, the Micrometers were not altered. It should be remarked that the permanent observers possess the power of detecting slight changes 
more facility than the occasional or Term assistants. 
