22 TrERM-DAY OBSERVATIONS OF MAGNETOMETERS, 1841. 
Géttingen JULY 21, 22. 
Mean Time 
Deelintion DEcuLINA- Brrizrar | Bawtance | DEcwINA- Brrmar | BAvAnce | Dectina- | Biritar | Batance | DEcLINa- Brritar_| BALance 
Observation. TION. Corrected.| Corrected, TION. Corrected.) Corrected, TION. Corrected. | Corrected, TION. Corrected,| Corrected. 
Min. , Se. Div. Se. Diy. | Mie. Div. Se. Div. | Mie. Div. p Sc. Div. | Mic. Diy. 
104, 14h, 18h, Qoh, 
0 129-80 | 497-8 : 487-6 481-0 136-41 | 456-2 . 
Bi Wiille eter eek ar aay : 777-7 696-7 135-23 738-3 
10). Wises 492.9 : 489-4 475-0 134-33 | 460-8 
15 129-52 : : 777-2 . 133-72 735-7 
20 130-09 | 494-7 . 486-4 475-4 133-57 | 461-8 
25 130-35 132-84 736-1 
30 130-03 | 494-2 | = fJssreeee 481-0 474-0 131-95 | 462-4 
35 129-98 33+ 131-25 735:8 
40 129-35 | 491-2 * 482.7 469-6 130-36 | 466-1 
45 128-76 130-18 730-1 
50 128-65 | 490-1 42 | 481-3 466-5 130-18 | 466-6 
55 128-56 2 129-09 733-9 
114, 154, 19h, 23h, 
0 128-85 | 490-6 o 474-9 459-9 129-47 | 466-5 
5 129-09 5 127-95 734-1 
10 129-29 | 493-0 * 474-7 462-6 128-98 | 466-3 
15 130-43 128-27 733-8 
20 130-60 | 491-9 : 464-0 460-1 128-96 | 473-0 
25 131-18 129-15 735-7 
30 130-55 | 490-5 37- 448-2 462-1 129-23 | 471-7 
35 130-05 129-50 737-6 
40 129-76 | 490-9 +23 | 444-4 463-7 129-78 | 474-1 
45 129-20 130-35 739-0 
50 129-18 | 491-1 : 440:8 464-0 130-13 | 474-8 
55 129.29 130-76 740-1 
12h, 164, 204, oh, 
0 129-09 | 490-9 D 459-0 471-3 130-72 | 473-9 
5 129-12 . 130-83 747-5 
10 129-15 | 491-7 A 473-8 7 468-4 131-27 | 476-0 
15 129-50 131-42 742-3 
20 129-29 | 491-2 ‘ 475-8 468-6 131-80 | 477-9 
25 129-12 : 131-95 741-8 
30 129-25 | 490-9 c 474-0 467-8 132-57 | 479-9 
35 129-12 34- 133-22 742-1 
40 129-25 | 490-6 * 475-3 461-3 133-00 | 483-0 
45 129-35 133-95 741-9 
50 129-52 | 492-5 30- 457-3 134-15 | 483-9 
55 130-05 133-85 741-7 
13h 21h, ib 
0 130-35 | 491-6 H 447-3 134-10 | 484-9 
5 129-67 134-17 744-8 
10 129-78 | 490.4 27: 443-2 134-00 | 478-8 
15 129-58 : 134-03 745-3 
20 129-29 | 488-7 D° 444-0 133-93 | 475-6 
25 128-92 134-22 745-8 
30 128-52 | 488-5 : 453-2 134-02 | 478-0 
35 129.42 5 134-28 745-2 
40 129-38 | 488-6 : 448-2 134-20 | 478-3 
45 129.55 133-93 746-1 
50 129-67 | 488-2 : 451-3 134-23 | 476-7 
55 129-82 133-97 746-7 
~ + | 20] a | a 13 | 14 v7 | 18 | 19 20 | 21 | 22 | 1 
Brriuan THERMOMETER, 62:3 62-4 | 627 | 6255 | 62:3 | 618 | 611 | 60:6 | 59:9 | 59-4 | 59-3 59-1 | 589 | 58:6 | 58-6 | 58-7 
Batance THEnmomeren, . | 62-7 | 622 | 630 | 623 | 62-2 | 622 | 61-9 | 612 | 60-7 | 59°9 | 597 | 59-9 | 59-7 | 592 | 58-7 | 59-0 
During the Terms of 1841, the Bifilar and Balance Magnetometers were observed 2™ 30% after the corresponding minutes of 
Declination observation. 
July 21¢—224, 1841. The Bifilar and Balance magnets, during this term, had their N. poles E. and W. respectively ; the opposite 
direction to that which they afterwards occupied. Increasing readings, however, still indicate increasing force ; the Bifilar readings hay- 
ing been subtracted from a constant quantity. 
