26 DAILY OBSERVATIONS OF MAGNETOMETERS, DECEMBER 3—15. 1843. 
Gottingen BIFivar. | BaLaNncer. Gottingen BIFILAR. Bauancr. | 
Mean Time of DECLINA- Mean Time of DECLINA- | 
Declination TION. Cor- |Thermo-|) Cor- |Thermo Declination TION. Cor- |Thermo-| Cor- |Thermo4 
Observation. rected. | meter. || rected. | meter. Observation. rected. | meter. || rected. meter, | 
ie id, ei x ° ‘ Se. Diy a Mice. Div. ° @ oh. -m 2 { Se. Div. £ Mic. Div. ° 
Dec. 318 0] 25 18-68 | 517-8 | 45-9 | 817-3 | 46-5 }|Dec. 9 2 O|| 25 24-38 | 516-3 | 46-0 | 834.2 46-5 | 
20 0 20-14 515-1 | 46-0 || 820-1 | 47-0 4 0 21-98 || 520-0 | 46-3 || 843-4 | 47.0 | 
22°10 19-80 || 513-3 | 46-6 || 820-6 | 47-2 6 0 22-36 || 512-2 | 46-7 | 853-7 | 47.0 
23 0 19-29 ||513-7 | 46-7 || 817-7 | 47-5 8 0 9-84 | 527-3 | 46-7 || 852-5 | 47.0 
Dec. 4 0 O 20-47 |/511-9 | 46-8 ||818-0 | 47-5 10 0 18-15 || 510-4 | 46-9 || 849-0 | 47.7 | 
2 0 21-44 |/513-7 | 47-3 || 825-4 | 48-3 : fi 5 dl 99 
4 0 19-53 513-2 | 47-8 ||s30.8 | 48.5 | Dee: 10 a a a Tee Ae tea ae tna 
6 0 18-03 5I4eL 48-0 || 829-3 | 48-7 22 0 20:99 | 501-9 | 46-2 || 821.8 
8 0 17-61 | 513-9 | 48-0 || 829.6 | 48.5 23 (0 21-86 | 514-0 | 46.2 || 821-5 
10 0 17-38 511-5 48-0, 837-8 48-5 Dec. yal 0 0 23-19 511-2 46.2 832-] 
18 0] 25 18-92 | 517-5 | 47-8 || 823.3 | 48.2 200 23-44 ||515-3 | 46-7 || 841-8 
20 0 18-05 || 517-8 | 47-9 || 824-8 | 48.2 4 0 23-16 | 517-7 | 47-1 || 852-5 
22 0 18-41 || 514-8 | 47-9 || 822.5 | 48-2 640 22-72 || 513-1 | 47-6 || 869-3 
23 0] 19-31 | 508-9 | 47.9 || 823-3 | 48-5 8 0 6:05 || 530-6 | 47-9 || 867-9 
Dec. 5 0 0 20-50 ||510-7 | 48-0 || 824-5 | 48-5 10 O 19-34 | 510-6 | 48-0 || 852.5 
2 0 22-63 || 514-0 | 48-2 |) 841-1 | 48-9 18 0|| 25 21-29 || 505-7 | 47-7 || 826-1 
4 0 22-89 ||512-6 | 48-3 || 843-5 | 49-0 i 
6 0] 17-94 512-5 | 48.2 || 850.2 | 48-5 Fae) eel en tae 
8 0 17-64 507-4 | 47-9 | 854-3 | 47-7 22 Ol, BROE We eee] gee ee 
io | opull eda tae 23 0 20-97 || 512-9 | 47.1 | 830-3 
] 17-95 || 509-5 | 47-1 853-9 | 46-7 Dec. 12 0 0 23-93 511-9 | 47-0 || 835-0 
18 0} 25 19-86 | 514-9 | 44-1 || 839.3 | 43-7 2m 10 27-87 | 510-7 | 47-0 | 851-8 
20 0 20-45 1515-0 | 43-9 || 839-8 | 43-5 4 0 21-98 || 515-7 | 47-0 || 887-4 
22 0 21-32 512-4 | 43.6 1841-5 | 43-4 6 0 14-78 | 517-4 | 47-1 || 869-9 
23 0 24-74 ||508-5 | 43-5 || 846-0 | 43.4 8 0 16:55 || 506-2 | 47-3 || 871-1 
Dec. 6 0 O 24-57 ||511-0 | 43-4 || 847.2 | 43.5 10 0 19-39 | 513-9 | 47-3 || 826-1 
2 0 25-58 513-0 | 43-6 853-0 | 44-0 18 0 25 20-60 515-0 | 47-0 832-0 
cu!) 22-62 | 516-2 | 44-0 || 857-8 | 44.7 20 0 21-10 || 514-3 | 47-0 || 839.3 
6 0 20-23 || 516-7 | 44-2 | 850-0 | 44-8 se” '9 20-60 |512-9 | 47.0 | 838.8 
8 0 19-37 511-8 | 44-3 |/ 852.0 | 44.7 ran 21-41 1512-9 | 47.0 || 835-9 
10 0 19-15 || 502-2 | 44.5 850-2 | 45-0 Dec. 13 0 0 22.22 |1513.5 | 46-9 || 839.5 
18 0} 25 17-88 || 520-5 | 44.2 || 816-1 | 44-7 2-0 22:99 || 514-9 | 46-9 || 838-0 
20 0 19-87 |516-0 | 44.3 || 827-8 | 44.9 4 0 21-84 || 518-8 | 46-9 || 846-6 
22) 30 20-70 ||514-2 | 44.5 || 839.8 | 45-0 6 0 20-61 | 517-3 | 46-9 || 846-5 
23 0 21-68 511-4 | 44-6 || 830-2 | 45-3 Seo 13-62 | 504-8 | 468 || 881-4 
Dec. 7 0 O 23-26 |1512-1 | 44.7 |1831-2 | 45-5 10 0 21-28 | 512-6 | 46-9 || 849.7 
2 0} 22-50 517-8 |.45-0 || 837-2 | 46-0 18 0] 25 21-17 |514-8 | 46-9 || 839.4 
4 0 20-60 518-0 | 45-8 843-6 | 46-5 20 25 91-55 511-8 | 47-0 835-8 
6 0 20-75 518-4 | 47-3 || 838.9 | 47-3 2 0 21-35 1512.5 | 47-1. 1835.9 
8 0 20-34 || 515-6 | 47-0 || 832.4 | 48-0 23 0 22-13 |1511-4 | 47.0 |1834.6 
19 0}! 25 19-89 | 518-8 | 47-0 819-4 | 47-0 a) 21-95 || 513-5 | 48-2 || 844-1 
20 40 20-50 517-5 | 46-8 |1829.6 | 46-8 4 0 20-74 || 517-5 | 48-2 || 845.7 
22 0 20-61 1514-6 | 46-6 || 821-3 | 46.5 Gino 18-82 || 517-0 | 47-9 || 843-3 
23 0 22-11 1515-7 | 46-4 |1817-1 | 46-5 8 0 20-13 || 517-5 | 47-8 || 842-8 
Dec. 8 0 O 22.80 1515-7 | 46-4 || 823-7 | 46-5 10 0 17-24 | 513-6 | 47-9 | 839.3 
2 CO} 22-35 [507-5 | 46-5 829.1 | 46-8 18 0] 25 19-60 | 517-3 | 48-9 | 826-5 
4 0| 23-86 511-2 | 46-6 850-1 | 47-0 20 0 19-81 517-9 | 49-4 || 829.3 
6 0 25-14 ||510-6 | 46-6 ||874-8 | 47-0 ap 20.48 | 514.6 | 49.8 || 833-3 
8 0 17-88 | 502-8 | 46-7 || 947-9 | 47-2 Beatin 21.05 |513-7 | 49.9 | s342 
10 0 8-23 4044 | 46-9 851-2 | 47-4 |. as oo 22.08 |1513.8 | 49-9 || 833-9 
18 0] 25 29.55 |1530-7 | 46.3 816-0 | 46-5 250 22-40 | 516-6 | 49-9 | 834-3 
20 0 24-24 |1533-2 | 46-1 ||792.0 | 46-5 4 0 21-81 || 516-6 | 49-6 || 846-9 
22 0 20-20 | 513-6 | 46-0 ||818-2 | 46-1 (on) 21-01 || 514-8 | 49-0 | 841-0 
23 0 21-28 | 513-1 | 45-9 ||813-0 | 46-1 8 0 20-03 || 515-4 | 48-6 || 839.0 | 4 
Dee. 9 0 O 22-58 || 512-5 | 45-9 ||826.9 | 46.3 10 0 19-31 | 514-8 | 48-0 | 839-3 
DECLINATION. Torsion removed, circle reading,—Dec, 54 34, 113}°, 108°*; 144 3h, 115°, 
BiFiwar. k=0-0001300. BALANcE. k=0-000014 approximately. 
*Dec, 54 3h, After removing the torsion from the suspension thread of the Declinometer, the magnet, being too near the copper ring, 
was wound up a little, and the torsion again removed as above. ti 
uses 7419", A mistake in the time of an hour was made this morning, which was not discovered till 8 40™, when an obseryati 
was made. 
Dec. 14414, Removed the inner box from the Bifilar Magnetometer for comparisons of thermometers. See Introduction. 
