and on the Dip of the magnetic Needle 
4°9 
Table I. 
Observations on the Variation of the magnetic Needle. 
1787 
6 A.M 
7 A.M. 
8 A.M. 
10 A.M. 
12 M. 
1 P.M. 
2 P.M. 
+ P.M. 
6 P.M. 
8 P. M. 
10 P.M. 
f 
11 P.M. 
July 1 
O / 
O / 
O 
O r 
O / 
O / 
O / 
O / 
O / 
O / 
O / 
23 
23 9 
2 3 9 
23 11 
23 18 
23 26 
23 26 
2 3 2 5 
2 3 19 
23 16 
2 3 1 7 
23 16 
2 
9 
10 
9 
*5 
29 
29 
28 
22 
17 
16 
17 
J 7 
3 
5 
5 
7 
12 
27 
27 
2 7 
22 
17 
17 
16 
17 
4 
8 
7 
1 1 
1 7 
28 
3 ° 
29 
22 
19 
16 
16 
17 
5 
8 
7 
8 
1 1 
28 
3 ° 
3 ° 
21 
17 
J 7 
18 
1 7 
6 
7 
7 
8 
22 
25 
27 
27 
21 
J 9 
20 
18 
!9 
7 
8 
6 
7 
16 
27 
28 
28 
22 
18 
18 
18 
18 
8 
6 
7 
8 
>5 
25 
27 
27 
21 
18 
18 
18 
19 
9 
7 
8 
7 
!S 
25 
27 
2 7 
22 
20 
20 
20 
20 
10 
5 
5 
5 
J S 
24 
24 
24 
23 
20 
20 
20 
20 
11 
7 
7 
8 
17 
26 
27 
27 
26 
23 
19 
19 
19 . 
12 
5 
5 
7 
H 
3 ° 
33 
33 
23 
21 
20 
19 
19 
*3 
10 
10 
10 
17 
30 
30 
30 
24 
19 
!9 
19 
20 
10 
10 
1 1 
19 
28 
29 
3 ° 
23 
20 
17 
18 
18 
l 5 
1 1 
1 1 
13 
20 
28 
29 
29 
22 
20 
18 
21 
18 
16 
10 
11 
13 
18 
25 
29 
27 
24 
23 
23 
23 
23 
17 
8 
6 
8 
21 
3 ° 
35 
3 6 
26 
18 
19 
20 
19 
18 
9 
9 
1 1 
H 
25 
29 
29 
26 
19 
... 
18 
1 9 
>9 
9 
8 
ii 
19 
25 
29 
29 
25 
20 
19 
20 
20 
20 
9 
9 
10 
20 
28 
29 
29 
25 
20 
21 
20 
20 
21 
7 
8 
8 
20 
29 
30 
30 
25 
19 
18 
20 
19 
22 
8 
10 
8 
19 
29 
3 ° 
3 ° 
24 
20 
18 
22 
19 
23 1 
15 
1 7 
16 
16 
28 
30 
3 ° 
26 
23 
22 
23 
22 
24 
8 
8 
8 
16 
28 
3 i 
33 
27 
21 
21 
22 
21 
25 
13 
16 
H 
18 
28 
3 i 
33 
20 
20 
zo 
20 
20 
26 
14 
14 
14 
IS 
26 
3 ° 
3 i 
24 
21 
21 
22 
21 
2 7 
H 
H 
15 
22 
• •• 
... 
... 
... 
... 
20 
20 
28 
14 
15 
H 
26 
3 ° 
3 ° 
3 1 
23 
19 
19 
21 
20 
29 
16 
16 
16 
21 
3 i 
3 2 
3 i 
20 
18 
18 
19 
19 
30 
13 
1 2 
13 
23 
3 ° 
3 ° 
3 2 
26 
19 
l8 
19 
18 
3 i 
12 
1 1 
12 
22 
29 
3 ° 
3 ° 
**• 
... 
••• 
3 G 2 
