Mr : Gilpin’s Observations on the Variation 
Table I. 
Observations on the Variation of the magnetic Needle. 
00 
7A.M 
3 A.M. 
10 A.M. 
12 M. 
1 P.M. 
2 P.M. 
4 P. m.L P. M. 
8 P. M. 
I 
10P.M. 
11 P.M. 
O / 
0 / 
O / 
O / 
O / 
0 / 
O / 
O / 
O / 
O # 
O / 
Oct. i 
2 3 17 
2 3 17 
23 23 
2 3 3 2 
23 32 
23 32 
2 3 2 9 
23 21 
23 21 
2 3 21 
2 3 - 
2 
J 9 
19 
19 
3 ° 
3 ° 
3 ° 
26 
21 
20 
20 
... 
3 
1 3 
18 
24 
3 ° 
33 
33 
23 
21 
21 
21 
21 
4 
H 
14 
21 
3 ° 
33 
33 
26 
21 
21 
12 
... 
5 
18 
17 
2 5 
3 i 
35 
34 
3 i 
17 
13 
H 
13 
6 
IS 
IS 
19 
29 
3 i 
3 i 
2 7 
21 
19 
19 
20 
7 
!5 
15 
3 ° 
3 i 
3 i 
2 7 
22 
21 
21 
... 
8 
15 
15 
22 
3 ° 
3 ° 
3 ° 
26 
20 
20 
20 
... 
9 
H 
H 
19 
29 
3 i 
32 
2 7 
21 
20 
21 
... 
IO 
15 
16 
21 
33 
34 
34 
3 ° 
21 
21 
21 
... 
1 1 
19 
17 
26 
33 
34 
33 
... 
2 5 
21 
19 
... 
12 
16 
i? 
2 3 
3 ° 
3 i 
3 ° 
26 
2 3 
22 
2 3 
• •• 
13 
iS 
16 
18 
z 9 
29 
29 
.... 
... 
... 
... 
H 
21 
21 
2 7 
3 i 
3 2 
32 
22 
20 
20 
••• 
16 
IS 
19 
28 
3 i 
3 i 
28 
21 
22 
20 
... 
16 
16 
16 
18 
27 
28 
28 
27 
24 
24 
22 
... 
17 
15 
18 
16 
26 
26 
26 
26 
2 3 
2 4 
21 
... 
18 
17 
37 
17 
28 
26 
3 i 
27 
21 
20 
20 
... 
19 
17 
16 
21 
26 
28 
28 
27 
2 4 
22 
22 
... 
20 
17 
17 
18 
2 9 
29 
29 
26 
19 
20 
19 
... 
21 
16 
16 
iS 
29 
3 ° 
3 ° 
... 
22 
19 
21 
... 
22 
18 
17 
18 
31 
33 
3 2 
... 
20 
20 
... 
2 3 
17 
16 
19 
3 ° 
3 ° 
29 
23 
21 
19 
20 
... 
24 
18 
19 
20 
33 
33 
3 i 
33 
2 3 
21 
1 7 
2 5 
2 3 
18 
23 
37 
3 ^ 
37 
34 
2 3 
2 3 
22 
... 
26 
21 
22 
26 
35 
37 
35 
28 
22 
2 4 
2 5 
... 
2 7 
26 
28 
2 7 
35 
35 
33 
28 
22 
21 
22 
... 
28 
19 
18 
2 4 
34 
35 
33 
... 
... 
21 
20 
21 
29 
18 
18 
21 
34 
35 
35 
24 
21 
22 
21 
... 
3 ° 
18 
18 
2 3 
35 
35 
35 
28 
22 
22 
21 
22 
3 1 
! I( ^ 
15 
19 
3 2 
34 
34 
29 
2 9 
... 
... 
... 
