738 
appendix. 
VARIATION of the MAGNETIC NEEDLE at Sea, with BARLOW’S PLATE attaclied to the COMPASS. 
Date. 
Latitude. 
North. 
Liongitude. 
West. 
Variation. 
East, 
Date. 
Latitude. 
North. 
jongitude. 
West. 
Variation. 
East. 
Date. 
Latitude. 
North. 
1827. 
0 
16 
12 
0 
134 
IS 
0 ' " 
8 .51 55 
1827. 
April. 
0 
/ 
0 
44 
56 
0 ' " 
East. 
1827. 
June. 
0 
34 
15 
16 
16 
18 
22 
135 
137 
26 
18 
8 28 20 
8 15 10 
May. 
21 
18 
36 
29 
238 
242 
1 07 15 
2 47 30 
— 
36 
38 
08 
00 
— 
16 
33 
143 
43 
6 21 20 
6 34 10 
• 
17' 
18 
240 
59 
1 19 20 
2 59 00 
z 
39 
40 
56 
52 
17 
50 
147 
02 
7 12 35 
— 
17 
24 
240 
21 
3 26 05 
— 
41 
48 
18 
56 
149 
25 
9 49 20 
17 
20 
.. 
2 19 45 
July. 
52 
00 
19 
14 
150 
17 
8 19 00 
17 
39 
1 38 00 
— 
61 
08 
19 
52 
152 
01 
10 01 50 
— 
18 
11 
240 
07 
2 07 17 
— 
61 
06 
18 
32 
160 
34 
12 16 20 
— 
20 
38 
238 
55 
0 42 35 
Aug. 
64 
42 
18 
38 
163 
44 
11 59 05 
— 
20 
20 
0 16 30 

•• 
19 
11 
169 
07 
12 31 10 
— 
20 
55 
238 
40 
1 50 40 
— 
66' 
66 
66 
66 
43 
35 
30 
13 
— 
19 
18 
18 
18 
02 
42 
41 
45 
172 
175 
177 
178 
52 
14 
02 
27 
14 29 50 
13 32 50 
13 08 20 
12 42 15 
— 
21 
22 
53 
03 
238 
238 
37 
20 
1 09 10 
West. 
0 59 05 
0 56 15 
— 
18 
55 
183 
57 
12 13 20 
— 
•• 
• 
1 58 40 
•• 
• 
18 
59 
186 
52 
12 02 00 
— 
.. 
. 
•• 
• 
1 01 35 
• * 
18 
55 
189 
55 
12 02 15 
236 
05 
East. 
•* 
• 
19 
04 
192 
45 
13 37 06 
— 
22 
56 
0 30 10 
— 
67’ 
18 
54 
195 
35 
10 21 00 
22 
49 
1 31 30 
— 
02 
10 34 30 

22 
56 
235 
08 
1 09 30 
69 
08 
18 
51 
198 
04 
9 20 45 
— 
25 
42 
231 
44 
1 01 30 
— 
68 
15 
— 
18 
53 
200 
10 
9 38 40 
8 34 15 
— 
25 58 
Off Loo 
231 17 
Choo. 
1 38 30 
1 17 55 
67 
69 
46 
49 
18 
55 
202 
51 
8 39 04 
— 
26 
12 
231 
53 
2 21 00 
— 
68 
15 
18 
58 
204 
45 
7 21 35 
26 
02 
. 
. 
1 33 20 
— 
67 
'26 
18 
50 
206 
36 
7 22 25 
— 
26 
02 
. 
1 21 20 
18 
51 
210 
48 
6 34 00 

26 
12 
. 
. 
0 55 55 
— 
67 
28 
18 
59 
211 
36 
5 33 25 
— 
26 
12 
• 
• 
2 03 20 
67 
23 
19 
38 
214 
21 
5 42 35 
— 
26 
12 
• 
• 
0 56 .75 
_ 
67 
17 
19 
37 
214 
32 
2 44 50 
— 
25 
17 
231 
35 
1 00 50 
19 
35 
214 
43 
2 25 45 
25 
31 
231 
01 
1 28 30 
— 
66 
38 
]_9 
16 
216 
41 
3 20 55 
- - 
26 
07 
230 
40 
1 40 30 
Sept. 
— 
19 
19 
33 
27 
219 
221 
41 
45 
1 24 10 
2 48 55 
■ — 
26 
37 
229 
41 
1 23 40 
West. 
Oct. 
57 
57 
32 
36 
— 
19 
19 
26 
38 
223 
224 
24 
02 
0 46 20 
0 13 00 
— 
27 
01 
228 
26 
0 17 40 
East. 
— 
50 
40 
45 
55 
April. 
20 
10 
226 
30 
1 43 20 
June. 
26 
25 
224 
30 
0 22 20 
— 
39 
34 
West. 
26 
30 
224 
30 
1 54 25 
— 
36 
”03 
20 
30 
229 
54 
0 14 30 
27 
14 
222 
58 
1 34 00 
Dec. 
20 
42 
232 
00 
0 25 00 
26 
54 
221 
34 
0 15 00 
— 
33 
40 
East. 

26 
49 
221 
00 
0 45 30 
— 
31 
53 
20 
57 
234 
02 
0 27 00 
— 
26 
49 
221 
00 
1 42 00 
— 
29 
26 
20 
58 
0 20 20 

27 
48 
220 
57 
3 08 25 
— 
37 
12 
West. 

27 
30 
217 
59 
2 37 00 
— 
25 
47 
21 
23 
235 
57 
1 03 10 
— 
27 
21 
217 
59 
2 35 05 
— 
25 
15 
21 
23 
235 
57 
0 25 20 
— 
27 
09 
218 
03 
3 23 30 
* 
25 
54 
West. 

27 
01 
218 
03 
2 57 45 
- — 
23 
18 
21 
25 
237 
39 
0 23 30 
26 
56 
218 
03 
2 43 48 
— 
22 
11 
0 7 08 
__ 
27 
27 
218 
00 
4 09 30 
22 
01 
0 14 30 
— 
28 
22 
216 
40 
3 51 00 
— 
1 15 45 

28 
37 
218 
II 
3 34 45 
— 
21 
37 
East. 
28 
48 
224 
30 
3 51 00 
— 
21 
3f 
21 
25 
237 
18 
0 15 05 
— 
29 
25 
223 
20 
4 43 10 
— 
21 
33 
21 
29 
0 14 40 
29 
40 
222 
30 
4 21 20 
— 
21 
32 
West. 
- 
30 
00 
210 
48 
5 01 00 
1828. 
25 
— 
21 
36 
238 
44 
0 07 38 
— 
32 
17 
206 
30 
3 54 50 
Jan. 
21 
Longitude. 
West. 
206 30 
205 36 
204 29 
203 12 
202 18 
201 45 
201 21 
183 30 
183 27 
166 25 
163 37 
163 50 
161 44 
Variation. 
East. 
66 48 
66 2o 
167 58 
166 48 
165 33 
Off Cape 
Krusen- 
stern. 
164 10 
Off St. 
Paul’s Isl. 
159 35 
138 32 
132 00 
130 09 
123 10 
122 II 
120 51 
19 06 
117 55 
117 29 
115 40 
114 16 
110 28 
no 04 
107 10 
107 00 
106 39 
106 29 
5 28 45 
4 00 30 
5 35 10 
5 05 30 
6 00 00 
6 14 40 
5 06 20 
15 34 00 
15 38 04 
25 44 00 
23 01 00 
23 03 00 
33 51 30 
32 41 00 
29 08 00 
31 12 36 
29 44 31 
31 31 43 
31 10 09 
29 00 45 
30 29 25 
28 03 40 
31 38 30 
28 22 50 
31 37 14 
29 30 30 
28 34 20 
30 48 55 
29 45 40 
29 16 16 
29 48 50 
28 58 45 
28 34 45 
19 58 50 
19 15 20 
19 38 45 
18 43 00 
17 58 50 
16 51 30 
14 06 20 
12 00 10 
11 18 40 
10 25 5 
10 17 35 
9 45 45 
8 00 30 
10 47 20 
9 37 10 
10 24 15 
9 23 40 
9 24 55 
7 59 15 
10 28 00 
10 40 00 
10 01 00 
7 54 40 
