and on the Dip of the magnetic Needle , 
4 1 3 
Table I. 
Observations on the Variation of the magnetic Needle . 
oo 
-vl 
7 A.M. 
8 A.M. 
10 A. M. 
12 M. 
1 P.M. 
2 P.M. 
4 P.M. 
6 P.M. 
8 P.M. 
10 P.M. 
11 P.M. 
O / 
0 / 
0 / 
0 / 
O / 
0 / 
O / 
O y 
O / 
O , 
O / 
Nov. i 
23 21 
23 20 
23 21 
2 3 3 ° 
2 3 3 ° 
23 28 
23 27 
23 22 
23 18 
23 20 
23 ... 
2 
17 
20 
20 
28 
3 1 
28 
26 
22 
20 
22 
2 3 
3 
20 
20 
21 
27 
37 
35 
3 1 
22 
2 3 
22 
... 
4 
18 
18 
... 
35 
5 6 
35 
28 
21 
22 
22 
21 
5 
J 7 
18 
21 
35 
35 
35 
3 2 
2 4 
21 
18 
... 
6 
18 
18 
J 9 
35 
35 
33 
3 ° 
22 
21 
20 
20 
7 
17 
J 7 
! 9 
3 ° 
33 
33 
26 
20 
22 
20 
21 
8 
17 
17 
19 
3 ° 
33 
33 
26 
20 
22 
20 
21 
9 
17 
18 
20 
3 ° 
33 
33 
3 i 
3 i 
... 
22 
... 
IO 
18 
J 7 
J 9 
3 1 
33 
33 
3 1 
28 
22 
22 
2 3 
1 1 
20 
20 
21 
3 i 
34 
35 
3 2 
... 
20 
22 
22 
12 
18 
20 
J 9 
28 
3 i 
3 2 
28 
21 
22 
21 
... 
13 
18 
19 
J 9 
28 
2 9 
3 ° 
28 
22 
21 
2 1 
22 
H 
18 
18 
20 
28 
29 
2 9 
2 5 
22 
21 
22 
22 
20 
19 
20 
28 
28 
28 
27 
z 5 
... 
2 3 
2 3 
16 
19 
J 9 
20 
2 7 
26 
28 
26 
J 9 
17 
20 
20 
17 
20 
19 
20 
26 
28 
2 7 
2 5 
2 j 
20 
21 
20 
18 
*9 
J 9 
20 
2 9 
2 9 
29 
2 5 
2 4 
... 
J 9 
22 
2 3 
2 3 
3 i 
3 2 
3 1 
3 1 
26 
22 
22 
2 1 
20 
2 3 
22 
2 3 
3 i 
33 
3 2 
2 9 
22 
21 
21 
22 
21 
21 
2 3 
2 3 
28 
2 9 
29 
26 
22 
21 
22 
2 3 
22 
21 
20 
21 
3 1 
29 
30 
29 
2 3 
22 
22 
2 3 
21 
2 1 
21 
2 9 
28 
2 9 
26 
22 
2 3 
22 
... 
24 
22 
20 
21 
3 ° 
3 i 
30 
26 
22 
22 
20 
2 1 
2 5 
22 
22 
22 
3 ° 
30 
3 ° 
... 
22 
21 
... 
26 
20 
21 
21 
30 
2 9 
3 i 
26 
22 
2 3 
... 
... 
27 
21 
22 
2 1 
28 
3 ° 
z 9 
26 
2 3 
23 
22 
... 
28 
19 
21 
20 
26 
2 7 
27 
26 
2 3 
22 
2 3 
... 
29 
21 
20 
21 
3 i 
3 1 
29 
2 5 
2 3 
22 
22 
... 
30 
22 
21 
2 3 
3 i 
34 
33 
28 
22 
21 
22 
... 
