IN WOOD-BUILT AND IRON-BUILT SHIPS 
99 
for Azimuths referred to the Disturbed Compass. 
Modulus. 
Apparent Azimuth from Neutral 
Position 
in points and decimals. 
+ 
+ 
— 
- 
p 
P 
P 
P 
4-0 
12-0 
20-0 
28-0 
4-1 
11-9 
20-1 
27-9 
4-2 
11-8 
20-2 
27-8 
4-3 
11-7 
20-3 
27-7 
4-4 
11*6 
20-4 
27-6 
4-5 
11-5 
20-5 
27*5 
4-6 
11-4 
20-6 
27*4 
4-7 
11-3 
20-7 
27*3 
4-8 
11-2 
20-8 
27*2 
4-9 
IM 
20-9 
27*1 
5-0 
11-0 
21-0 
27*0 
5-1 
10-9 
2 M 
26-9 
5-2 
10-8 
21-2 
26-8 
5-3 
10-7 
21-3 
26-7 
5'4 
10-6 
21-4 
26*6 
5-5 
10-5 
21-5 
26’5 
5-6 
10-4 
21-6 
26-4 
5*7 
10-3 
21-7 
26-3 
5-8 
10-2 
21-8 
26*2 
5-9 
10-1 
21-9 
26-1 
6-0 
10-0 
22-0 
26-0 
6-1 
9-9 
22-1 
25-9 
6*2 
9-8 
22-2 
25-8 
6-3 
9-7 
22-3 
25-7 
6*4 
9-6 
22-4 
25-6 
6*5 
9-5 
22-5 
25*5 
6-6 
9-4 
22-6 
25-4 
6-7 
9-3 
22-7 
25-3 
6-8 
9-2 
22-8 
25-2 
6-9 
9-1 
22*9 
25*1 
7-0 
9-0 
23-0 
25*0 
7-1 
8*9 
23-1 
24-9 
7*2 
8*8 
23-2 
24-8 
7-3 
8-7 
23-3 
24-7 
7-4 
8-6 
23-4 
24-6 
7-5 
8-5 
23-5 
24-5 
7-6 
8-4 
23-6 
24-4 
7-7 
8-3 
23-7 
24-3 
7-8 
8-2 
23-8 
24-2 
7-9 
8-1 
23-9 
24-1 
8-0 
8-0 
24-0 
24-0 
+ 
+ 
- 
- 
•70 
•71 
•72 
CO 
•74 
•75 
•76 
■77 
00 
•79 
•80 
Corresponding Po 
ar-Magnet-Deviati 
on, in degrees and minutes. 
o 
o 
O 
O 
O 
f 
O 
O 
O 
o 
/ 
O 
29 
40 
30 
8 
30 
37 
31 
5 
31 
34 
32 
2 
32 
31 
33 
0 
33 
29 
33 
58 
34 
27 
30 
18 
30 
47 
31 
17 
31 
46 
32 
15 
32 
44 
33 
14 
33 
43 
34 
13 
34 
43 
35 
13 
30 
56 
31 
26 
31 
56 
32 
26 
32 
56 
33 
25 
33 
56 
34 
26 
34 
57 
35 
28 
35 
59 
31 
33 
32 
3 
32 
34 
33 
5 
33 
36 
34 
6 
34 
37 
35 
8 
35 
40 
36 
12 
36 
44 
32 
10 
32 
41 
33 
12 
33 
43 
34 
15 
34 
46 
35 
18 
35 
50 
36 
23 
36 
55 
37 28 
32 
46 
33 
17 
33 
49 
34 
21 
34 
54 
35 
26 
35 
59 
36 
32 
37 
5 
37 
38 
38 
12 
33 
21 
33 
53 
34 
26 
34 
59 
35 
32 
36 
5 
36 
39 
37 
13 
37 
47 
38 
21 
38 
55 
33 
56 
34 
29 
35 
2 
35 
36 
36 
10 
36 
43 
37 
18 
37 
53 
38 
28 
39 
3 
39 
38 
34 
30 
35 
4 
35 
38 
36 
12 
36 
47 
37 
21 
37 
57 
38 
32 
39 
8 
39 
44 
40 
20 
35 
3 
35 
38 
36 
13 
36 
48 
37 
23 
37 
58 
38 
35 
39 
11 
39 
47 
40 
24 
41 
1 
35 
36 
36 
11 
36 
47 
37 
23 
37 
59 
38 
35 
39 
12 
39 
49 
40 
26 
41 
4 
41 
42 
36 
8 
36 
44 
37 
20 
37 
57 
38 
34 
39 
10 
39 
48 
40 
26 
41 
4 
41 
43 
42 
22 
36 
39 
37 
16 
37 
53 
38 
30 
39 
8 
39 
45 
40 
24 
41 
3 
41 
42 
42 
21 
43 
1 
37 
9 
37 
47 
38 
25 
39 
3 
39 
41 
40 
19 
40 
59 
41 
39 
42 
19 
42 
59 
43 
39 
37 
39 
38 
17 
38 
56 
39 
35 
40 
14 
40 
53 
41 
34 
42 
14 
42 
54 
43 
35 
44 
16 
38 
8 
38 
47 
39 
26 
40 
5 
40 
45 
41 
25 
42 
7 
42 
47 
43 
28 
44 
10 
44 
52 
38 
35 
39 
15 
39 
55 
40 
35 
41 
16 
41 
56 
42 
38 
43 
20 
44 
2 
44 
45 
45 
28 
39 
2 
39 
42 
40 
23 
41 
4 
41 
45 
42 
26 
43 
9 
43 
52 
44 
35 
45 
19 
46 
3 
39 
28 
40 
9 
40 
50 
41 
32 
42 
14 
42 
56 
43 
39 
44 
23 
45 
6 
45 
51 
46 
36 
39 
53 
40 
34 
41 
16 
41 
59 
42 
42 
43 
25 
44 
8 
44 
52 
45 
36 
46 
22 
47 
8 
40 
18 
41 
0 
41 
42 
42 
25 
43 
8 
43 
52 
44 
36 
45 
21 
46 
6 
46 
52 
47 39 
40 
41 
41 
24 
42 
7 
42 
50 
43 
34 
44 
18 
45 
3 
45 
49 
46 
35 
47 
22 
48 
9 
41 
3 
41 
46 
42 
29 
43 
13 
43 
58 
44 
43 
45 
28 
46 
15 
47 
2 
47 
50 
48 
38 
41 
24 
42 
4 
42 
51 
43 
36 
44 
21 
45 
7 
45 
53 
46 
40 
47 
28 
48 
17 
49 
6 
41 
44 
42 
28 
43 
12 
43 
57 
44 
43 
45 
30 
46 
17 
47 
5 
47 
53 
48 
42 
49 
32 
42 
3 
42 
47 
43 
32 
44 
18 
45 
4 
45 
51 
46 
39 
47 
28 
48 
17 
49 
7 
49 
57 
42 
21 
43 
6 
43 
51 
44 
37 
45 
24 
46 
12 
47 
0 
47 
49 
48 
39 
49 
30 
50 
21 
42 
38 
43 
23 
44 
9 
44 
56 
45 
43 
46 
31 
47 
20 
48 
10 
49 
0 
49 
51 
50 
43 
42 
54 
43 
40 
44 
26 
45 
13 
46 
1 
46 
49 
47 
39 
48 
29 
49 
20 
50 
12 
51 
4 
43 
8 
43 
54 
44 
41 
45 
29 
46 
17 
47 
6 
47 
56 
48 
47 
49 
38 
50 
30 
51 
23 
43 
21 
44 
8 
44 
55 
45 
43 
46 
32 
47 
21 
48 
12 
49 
3 
49 
55 
50 
48 
51 
41 
43 
33 
44 
20 
45 
8 
45 
56 
46 
45 
47 
35 
48 
26 
49 
18 
50 
10 
51 
3 
51 
57 
43 
44 
44 
31 
45 
19 
46 
8 
46 
57 
47 
48 
48 
39 
49 
31 
50 
24 
51 
18 
52 
12 
43 
54 
44 
41 
45 
29 
46 
18 
47 
8 
47 
59 
48 
51 
49 
43 
50 
36 
51 
30 
52 
25 
44 
2 
44 
50 
45 
38 
46 
27 
47 
17 
48 
8 
49 
0 
49 
53 
50 
46 
51 
41 
52 
36 
44 
9 
44 
57 
45 
46 
46 
35 
47 
25 
48 
16 
49 
8 
50 
1 
50 
55 
51 
50 
52 
46 
44 
15 
45 
3 
45 
52 
46 
42 
47 
32 
48 
23 
49 
15 
50 
8 
51 
2 
51 
58 
52 
54 
44 
20 
45 
8 
45 
57 
46 
47 
47 
37 
48 
28 
49 
21 
50 
14 
51 
8 
52 
4 
53 
0 
44 
23 
45 
11 
46 
0 
46 
50 
47 
40 
48 
32 
49 
25 
50 
19 
51 
13 
52 
8 
53 
4 
44 
25 
45 
13 
46 
2 
46 
52 
47 
42 
48 
34 
49 
27 
50 
21 
51 
15 
52 
10 
53 
7 
44 
26 
45 
14 
46 
3 
46 
53 
47 
44 
48 
35 
49 
28 
50 
21 
51 
16 
52 
11 
53 
3 
27 
17 
27 
44 
28 
11 
28 
39 
29 
/ 
29 
35 
30 
4 
30 
33 
31 
O 
31 
32 
32 
- 
Mean 
