MAGNETICAL OBSERVATIONS, 
737 
VARIATION of the MAGNETIC NEEDLE at Sea, with BARLOW’S PLATE attached to the COMPASS. 
Date. 
Latitude. 
South. 
Longitude. 
West. 
Variation. 
East. 
182.5. 
0 
■ 
0 
' 
0 
" 
Dec. 
23 
25 
134 
34 
5 
56 
50 
1826. 
Jan. 
23 
22 
135 
01 
5 
23 
30 
— 
22 
00 
135 
13 
7 
19 
07 

19 
56 
136 
04 
5 
24 
15 
— 
18 
19 
137 
09 
7 
32 
10 
— 
13 
33 
137 
16 
5 
34 
08 
— 
19- 
20 
137 
11 
6 
05 
09 
— 
18 
59 
139 
06 
7 
03 
30 
— 
20 
41 
139 
1 1 
7 
20 
00 
— 
20 
46' 
139 
04 
9 
33 
10 
Feb. 
20 
49 
138 
14 
5 
48 
30 
— 
21 
39 
138 
37 
6 
27 
00 
— 
21 
47 
109 
00 
8 
01 
15 
— 
18 
49 
142 
01 
6 
00 
00 

18 
24 
141 
34 
5 
58 
30 
— 
18 
25 
141 
40 
6 
00 
00 
March. 
17 
23 
142 
12 
6 
00 
08 
— 
18 
22 
147 
46 
9 
09 
45 
— 
18 
25 
Off Mai- 
8 
03 
30 
— 
17 
39 
tea Island. 
8 
19 
00 
April. 
16 
04 
149 
26 
6 
00 
10 
14 
54 
150 
II 
7 
11 
00 
— 
13 
24 
151 
05 
6 
00 
00 
— 
12 
25 
150 
58 
7 
33 
00 
10 
59 
151 
02 
8 
00 
00 
— 
7 
20 
150 
30 
7 
00 
00 
— 
5 
49 
150 
04 
7 
40 
00 
I 
4 
12 
150 
14 
6 
00 
00 
— 
0 
20 
150 
02 
7 
15 
00 
May. 
4 
58 
102 
16 
7 
19 
30 
7 
16 
104 
12 
7 
51 
00 
— 
8 
51 
106 
00 
7 
22 
45 
■ 
12 
02 
107 
27 
7 
02 
25 

14 
54 
108 
03 
5 
49 
30 
■ 
17 
17 
108 
23 
6 
29 
00 

19 
14 
108 
07 
6 
31 
55 

21 
02 
107 
30 
6 
30 
45 
— 
23 
33 
105 
34 
7 
38 
50 

26 
08 
96 
54 
9 
48 
5 
— 
27 
28 
96 
12 
9 
55 
35 
— 
28 
41 
95 
48 
12 
17 
10 
— 
29 
43 
94 
42 
12 
29 
30 
_ 
31 
15 
92 
12 
14 
1 1 
55 
— 
32 
03 
89 
40 
15 
38 
00 

31 
59 
75 
53 
17 
47 
14 

32 
05 
77 
20 
17 
14 
10 
Off Cc 
quimbo. 
16 
20 
30 
— 
32 
25 
79 
49 
18 
45 
00 
— 
33 
10 
82 
20 
18 
42 
40 
— 
33 
40 
82 
05 
15 
37 
15 
48 
05 
83 
06 
20 
34 
00 
NORTH PACIFIC. 
Date. 
Latitude. 
Longitude. 
Variation. 
North. 
West. 
East, 
Date. 
Latitude. 
Lona 
itude. 
Variation. 
1826. 
0 
0 
25 
0 
V 
North. 
West. 
East. 
August. 
67 
55 
165 
31 
57 
00 
31 
22 
15 
1826. 
May. 
0 
2 
/ 
01 
0 
149 
t 
48 
0 
7 
/ 
58 
00 
- 
UDserv 
with the 
head in dif 
at ions 
ship’s 
feient 
29 
31 
16 
26 
20 
25 
— 
3 
7 
55 
32 
149 
150 
49 
12 
7 
7 
58 
20 
00 
00 
z 
posit 
ions. 
U 1 
29 
10 
22 
00 
00 
— 
13 
32 
152 
27 
8 
47 
00 
— 
.. 
29 
13 
10 
■ 
16 
1 1 
153 
25 
8 
44 
00 
— 
.. 
30 
50 
34 
18 
50 
153 
45 
9 
39 
00 
— 
68 
22 
167 
22 
29 
35 
10 
June. 
23 
35 
161 
30 
11 
31 
00 
— 
68 
19 
167 
08 
30 
17 
00 
24 
44 
162 
40 
12 
32 
00 
— 
70 
04 
164 
57 
33 
43 
45 
27 
00 
165 
55 
13 
16 
45 
— 
70 
05 
164 
54 
33 
23 
45 
26 
14 
168 
51 
13 
25 
45 
— 
71 
00 
164 
00 
35 
45 
50 

28 
14 
171 
51 
13 
01 
15 
— 
71 
00 
163 
33 
35 
24 
05 

28 
50 
173 
08 
13 
45 
30 
— 
70 
37 
162 
01 
38 
17 
05 
28 
50 
173 
10 
14 
5 
30 
— 
70 
37 
162 
00 
37 
43 
05 
28 
50 
174 
10 
14 
48 
00 
— 
70 
42 
160 
30 
38 
38 
20 
— 
28 
53 
174 
56 
13 
58 
00 
— 
70 
23 
162 
11 
36 
39 
40 
— 
29 
30 
179 
26 
10 
18 
00 
— 
70 
33 
163 
01 
37 
31 
50 
29 
32 
182 
55 
15 
10 
00 
— 
70 
25 
163' 
18 
36 
19 
15 
- ■ 
29 
40 
185 
23 
13 
12 
00 
. — 
70 
25 
162 
48 
36 
21 
15 
__ 
31 
34 
189 
25 
11 
34 
00 
— , 
70 
21 
163 
19 
33 
32 
10 
34 
41 
192 
00 
10 
20 
00 
— 
70 
09 
166 
00 
32 
55 
30 
— 
34 
42 
192 
00 
10 
00 
00 
— 
69 
45 
164 
38 
34 
17 
20 
— 
34 
34 
35 
19 
45 
11 
193 
194 
195 
59 
00 
00 
9 
9 
10 
14 
48 
00 
15 
30 
30 
— 
Ship’s 
different 
head in 
positions. 
34 
32 
32 
36 
08 
54 
30 
00 
00 
35 
12 
195 
00 
10 
00 
30 
— 
69 
37 
163 
37 
33 
30 
00 

35 
10 
195 
10 
10 
36 
00 
— 
69 
31 
163 
10 
34 
38 
30 

35 
50 
195 
13 
8 
37 
30 
— 
69 
14 
164 
12 
33 
21 
00 
38 
35 
196 
05 
8 
1 1 
00 
— 
. 
.« 
00 
33 
40 
00 

44 
19 
198 
00 
7 
46 
00 
— 
66 
40 
164 
31 
57 
40 
47 
28 
200 
00 
5 
18 
00 
— 
66 
13 
Ijhainisso I. 
32 
00 
30 

52 
59 
200 
04 
4 
57 
00 
Oct. 
59 
22 
169 
47 
23 
27 
25 
- ■ 
52 
39 
201 
10 
3 
20 
45 
— 
57 
38 
170' 
44 
21 
12 
00 

52 
41 
199 
49 
6 
41 
00 
— 
54 
46 
! 65 
45 
20 
50 
00 
- - 
5 
35 
00 
— 
54 
13 
164 
29 
20 
19 
50 
— 
53 
27 
198 
03 
5 
54 
00 
— 
48 
55 
155 
53 
21 
08 
00 
July. 
55 
57 
189 
42 
11 
56 
00 
— 
47 
12 
152 
18 
21 
07 
10 

55 
54 
188 
51 
12 
55 
30 
— 
42 
06 
139 
39 
18 
03 
00 

58 
20 
182 
37 
15 
35 
00 
Nov. 
41 
26 
136 
36 
19 
06 
00 

.. 
16 
37 
15 
— 
39 
38 
132 
23 
19 
43 
30 

63 
08 
171 
51 
22 
30 
30 
— 
39 
17 
129 
26 
19 
06 
45 
63 
58 
171 
30 
24 
45 
00 
— 
38 
47 
126 
|6 
18 
10 
20 

64 
14 
170 
20 
24 
16 
00 
— 
38 
38 
123 
07 
19 
55 
20 
— 
64 
28 
169 
57 
25 
24 
00 
— 
38 
06 
20 
28 
15 
• 
25 
07 
00 
Dec. 
37 
11 
122 
47 
15 
14 
30 

25 
35 
30 
— 
36 
36 
15 
53 
45 
— 
64 
57 
169 
34 
24 
42 
00 
— 
18 
14 
25 

64 
59 
23 
24 
00 
1827. 

66 
14 
166 
53 
29 
10 
30 
Jan. 
32 
11 
125 
41 
13 
50 
30 
■ 
66 
40 
31 
16 
OO 
— 
30 
11 
126 
15 
13 
30 
50 
— 
66 
24 
In Kot- 
30 
05 
00 

27 
42 
127 
18 
14 
9 
SO 
66 
23 
zebue 
29 
13 
00 

25 
26 
127 
38 
10 
45 
10 

Sound. 
29 
06 
00 

23 
58 
127 
54 
10 
15 
20 

65 
41 
30 
14 
30 
— 
19 
03 
133 
04 
8 
50 
00 
- ■ 
66 
23 
, ^ 
31 
26 
30 
— 
17 
38 
133 
13 
9 
57 
15 
— 
67 
55 
165 
25 
29 
37 
55 
— 
16 
10 
133 
17 
9 
16 
00 
