Dec. 28 3 
ExTrRA OBSERVATIONS OF MAGNETOMETERS, DECEMBER 28—30. 1843. 
DECLINATION, 
BIFILAR. BALANCE. 
Min : Min.}| Reading || Min.|} Readin: 
of z a ae of Cor- i: of Cor- 5 
Obs. Obs.| rected. ||Obs.| rected. 
m. 2 4 m. Se. Div. | m. Mic. Diy. 
37 | 25 28-03) 37 510-9 38 851-7 
40 28-72 
42 27-96 || 42 510-8 43 853-7 
45 28-37 
47 27-90 || 47 509-9 48 855-1 
50 27-83 || 52 502-1 53 859-2 
55 23-97 || 57 500-5 58 864-4 
0 23-32 2 506-0 3 866-3 
5 22-35 7 511-8 8 865-4 
10 23-23 || 12 511-6 13 866-6 
15 23-93 || 17 513-1 18 866-8 
20 25-39 || 22 510-5 23 869-3 
25 26-08 || 27 509-8 28 869-4 
30 26-77 || 32 514-7 33 868-9 
35 28-52 
37 29-31 || 37 516-3 38 870-0 
40 30-51 
42 30-65 || 42 516-0 43 871-9 
45 30-62 || 47 513-9 48 873-1 
50 30-76 
52 30-85 || 52 512-3 | 
55 30-74 | 57 505-9 58 876-3 
0 28-80 2 507-6 
BIFILAR. k=0-0001300. 
DECLINATION. BIFILAR. 
Gottingen E 5 = 
Mean Be e, || Min. Reading Min.| Reading 
of | Reduced. || of Cor- 
Obs. Obs.| rected. 
aah hig m. S f m. Se. Div. 
Dec. 28 2 5 | 25 27-40) 7 511-3 
10 27-22) 12 511-8 
15 26-67 || 17 512-0 
20 26-59 | 22 510-7 
25 25-95 | 27 509-9 
30 25-38 || 32 509-3 
35 24-69 || 37 509-1 
40 23-81) 42 508-5 
45 22.47 || 47 509-6 
50 21-31) 52 511-8 
55 21-26 || 57 514-4 
Dec. 28 4 0 21-41 2 515-3 
Dec. 29 10 0 | 25 12-50] 2 508.6 
10 13-84 | 12 511-7 
15 14:75 || 17 511-2 
20 15-19 | 22 511-8 
35 16-47 || 37 514-4 
40 17:07 
Dec. 30 10 0 | 25 15-22] 2 514-2 
10 16-38 || 12 514-6 
25 16-60 || 27 515-4 
BALANCE. k=0:000014 approximately. 
BIFILAR THERMOMETER. 
BALANCE THERMOMETER. 
\ Dec. 294 104}, { ween 
47-2" 
73 
BALANCE. 
Reading 
Cor- 
rected. 
Mic. Div. 
876-6 
879-5 
880-4 
881-3 
880-9 
880-4 
878-0 
837-9 
838-5 
838-2 
836-8 
849-8 
849-4 
MAG, AND MET. ogs. 1843, 
