Observations of Magnetic Dip, April 21 — August 7. 1843. 
GSttingen 
Mean Time, 
Middle of 
Observation. 
d. 
Apr. 21 
Apr. 24 
Apr. 25 
May 1 
May 5 
May 15 
May 20 
May 26 
May 30 
June 2 
June 5 
June 9 
June 9 
June 12 
h. in. 
3 10 
23 0) 
3 0/ 
3 25 
22 45 
3 0 
3 25 
23 15 
3 40 
22 35 
3 40 
23 30 
22 50 
June 16 3 50 
June 19 
June 20 
June 23 
June 26 
June 30 
July 3 
July 10 
July 14 
July 2 1 
July 25 
July 26 
July 28 
Aug. 1 
Aug. 4 
Aug. 7 
22 35 
0 20 
7 10 
22 55 
4 0 
23 30 
23 10 
3 45 
8 0 
0 35 
2 10 
3 50 
4 0 
3 40 
23 0 
Dura- 
tion 
of 
Obser- 
vation. 
48 
45 
53 
40 
60 
55 
40 
52 
60 
52 
18 
20 
40 
50 
70 
60 
52 
45 
50 
60 
180 
55 
60 
Needle. 
Num- 
ber. 
Tem- 
pera- 
ture. 
57 
47 
53 
48 
51 
58 
48 
56 
48 
56 
76 
63 
70 
74 
58 
64? 
67 
70 
74 
67 
70? 
66 
62 
74 
65 
End 
dip- 
ping. 
B 
A 
A 
B 
B 
A 
A 
B 
B 
A 
A 
B 
B 
A 
A 
B 
B 
A 
A 
B 
B 
A 
A 
B 
B 
A 
A 
B 
B 
A 
A 
B 
B 
A 
A 
B 
B 
A 
A 
B 
B 
A 
A 
B 
B 
A 
A 
B 
fB 
»A 
A 
B 
B 
A 
A 
B 
Face of Circle E. 
Pace of Circle W 
Mark on Needle 
Mark on Needle 
E. 
w. 
E. 
W. 
73 
5 
- 
69 
46 
0 
72 
37 
5 
69 
14- 
5 
70 
4. 
o 
73 
27 
0 
69 
44 
o 
73 
3- 
5 
70 
I 
o 
73 
30 
o 
69 
41- 
o 
73 
12- 
5 
20 
o 
69 
16 
o 
72 
51 
o 
68 
59- 
o 
73 
35 
5 
69 
19 
0 
72 
52 
o 
68 
40- 
5 
70 
o 
73 
38 
0 
69 
29 
o 
73 
14- 
0 
70 
9 
o 
73 
41 
0 
69 
28- 
o 
73 
12- 
5 
73 
22 
5 
69 
31 
5 
72 
35 
o 
69 
11 
o 
73 
28 
5 
69 
33 
5 
72 
36 
5 
68 
54 
0 
70 
g 
5 
73 
36 
5 
69 
34 
o 
73 
13 
5 
70 
8 
o 
73 
33 
5 
69 
33 
o 
73 
7 
5 
73 
16 
5 
69 
32 
0 
72 
36 
5 
69 
15 
0 
73 
17 
5 
69 
37-0 
72 
40 
o 
69 
5 
5 
70 
13 
5 
73 
28 
0 
69 
39 
o 
73 
0 
5 
70 
9 
5 
73 
27 
5 
69 
38 
o 
73 
6 
5 
73 
21 
o 
69 
20 
0 
72 
50 
o 
69 
1 
0 
73 
30 
5 
69 
13 
0 
72 
57 
o 
68 
56 
5 
70 
1 1 
o 
73 
26 
5 
69 
41 
5 
73 
9 
0 
70 
13 
o 
73 
30 
0 
69 
46 
o 
73 
7 
5 
73 
22 
o 
69 
34 
0 
72 
47 
5 
69 
8 
o 
73 
29 
5 
69 
26 
0 
72 
56 
o 
69 
9 
5 
70 
4 
o 
73 
30 
0 
69 
44 
o 
73 
18 
5 
70 
13 
5 
73 
29 
0 
69 
41 
5 
73 
6 
5 
73 
46 
o 
69 
25 
0 
72 
36 
68 
34 
0 
73 
46 
5 
69 
24 
5 
72 
44 
68 
33 
5 
70 
6 
o 
73 
43 
5 
69 
32 
5 
73 
12 
5 
70 
5 
5 
73 
39 
5 
69 
31 
5 
73 
16 
0 
73 
46 
o 
69 
21 
5 
72 
37 
5 
68 
38 
0 
73 
51 
o 
69 
24 
5 
72 
48 
5 
68 
34 
•5 
70 
8 
5 
73 
18 
0 
69 
44 
5 
73 
21 
0 
70 
4 
5 
73 
34 
0 
69 
39 
73 
13 
■5 
73 
55 
o 
69 
20 
0 
72 
39 
5 
68 
39 
■5 
73 
48 
o 
69 
o+ 
72 
43 
5 
68 
39 
• 5 
70 
12 
5 
73 
32 
0 
69 
37 
o 
73 
14 
•5 
70 
8 
5 
73 
32 
■0 
69 
40 
o 
73 
18 
5 
74 
38 
o 
68 
29 
5 
73 
20 
o 
67 
56 
ot 
71 
50 
o 
68 
31 
0 
73 
43 
5 
67 
32 
■0 
70 
4 
5 
73 
36 
0 
69 
31 
o 
73 
19 
■0 
70 
2 
5 
73 
42 
0 
69 
35 
o 
73 
23 
5 
74 
6 
o 
69 
8 
5 
72 
54 
5 
68 
36 
5 
74 
6 
o 
69 
5 
0 
72 
57 
o 
68 
28 
• 5 
69 
48 
o 
73 
58 
•0 
69 
22 
5 
73 
44 
0 
69 
46 
o 
74 
7 
5 
69 
1 9 
o 
74 
27 
5 
73 
43 
5 
69 
23 
0 
72 
59 
o 
68 
41 
0 
73 
56 
5 
69 
21 
5 
72 
47 
o 
68 
51 
0 
69 
58 
o 
73 
36 
5 
69 
18 
o 
73 
51 
5 
69 
54 
5 
7Q 
51 
0 
69 
1 1 
5 
7Q 
DO 
0 
74 
0 
0 
69 
32 
0 
72 
46 
0 
68 
51 
0 
73 
49 
5 
69 
32 
5 
72 
46 
5 
68 
51 
0 
69 
40 
0 
74 
6 
0 
68 
59 
5 
74 
4 
5? 
69 
18 
5 
74 
10 
0 
69 
9 
0 
74 
10 
5 
73 
5 
5 
69 
37 
0 
73 
4 
0 
69 
25 
0 
73 
11 
5 
69 
27 
0 
72 
34 
0 
69 
22 
5 
68 
58 
5 
74 
12 
0 
68 
55 
■0 
74 
13 
0 
68 
48 
0 
74 
17 
0 
68 
53 
5 
74 
14 
5 
73 
39 
0 
69 
5 
5 
73 
4 
5 
69 
3 
5 
Mean. 
71 11-12 
71 34-62 
71 36-12) 
6-50/ 
6- 75 
35-50 
37- 62) 
10-00 J 
8-12\ 
38- 12) 
35-50) 
10-00/ 
10- 00{ 
35-25) 
35-37 
8- 00 
9- 25 
37-00 
71 39-121 
71 12-87) 
15-25 
39- 12 
37- 62 
5-37 
7- 25 
38- 62 
38-12) 
5*75 j 
9-62 
38- 00 
37-87 
8- 50 
9- 25) 
39- 00) 
39- 75) 
5-87) 
9-12 
37-62 
40- 75 
11- 37 
9-12 
43-12 
55-00 
11-62 
14-00 [ 
71 41-00) 
71 42-50 
17-25 
14-87 
42-50 
42-001 
17-87) 
8-75 
34-62 
33-25 
13-12 
A. dipping 
Minus 
B. dipping. 
+ 23-50 
+ 29-62 
+ 28-75 
+ 27-62 
+ 30-00 
+ 25-50 
+ 25-25 
+ 27-37 
+ 27-75 
+ 26-25 
+ 23-87 
+ 32-25 
+ 31-37 
+ 32-37 
+ 28-38 
+ 29-37 
+ 29-75 
+ 33-88 
+ 28-50 
+ 29-38 
+ 34-00 
+ 43-38 
+ 27-00 
+ 25-25 
+ 27-63 
+ 24-13 
+ 25-87 
+ 20-13 
Observed 
Dip. 
71 22-87 
71 21-31 
71 21-12* 
71 23-81 
71 23-12 
71 22-75 
71 22-62* 
71 21-69* 
71 23-12 
71 26-OOf 
71 27-19t 
71 21-50f 
71 22-94* 
71 21-94 
71 23-81* 
71 23-19* 
71 24-12 
71 22-81 
71 23-37t 
71 26-06 
71 26-12 
71 33-3 It 
71 27-50 
71 29-87t 
71 28-69 
71 29-94t 
71 21-69* 
71 23-19 
Observations considered good. 
t Observations considered bad or doubtful. 
May 30<i. The Dip instrument was removed from the Magnetic Observatory to the wooden house erected for it and the extra declinometer. 
See Introduction. 
June 5 d — Sept. 12. The Dip instrument during this period worked imperfectly, chiefly in lifting the needle. See Introduction for details. 
MAG. AND MET. OBS. 1843. 
