*78 
View o/ Mi' Barlow's Magnetical 
Tabulated Residts of Experiments made with Mr Barlow's Cor - 
recting-plate in H. M. S. Conway , by Captain Basil Hall 
and Mr Foster , in a Voyage to the Western Coast of America. 
Lati- 
tude. 
Longi- 
tude. 
Diff. by 
Han- 
steen’s 
Chart. 
Observed 
variation. 
Corrected 
variation. 
Local 
Attrac- 
tion. 
Direction 
of Ship’s 
Head. 
End of 
Needle 
drawn 
forward. 
O 
/ 
O 
/ 
O 
/ 
C 
/ 
/ 
/ 
1 
49 
30 N 
5 
15 W 
72 
0 N 
30 
6 W 
27 
46 W 
2 
20 W 
WSW 
North 
2 
47 
0 N 
8 
20 W 
71 
0 N 
29 
20 W 
25 
46 W 
3 
34 W 
WSW 
North 
3 
45 
0 N 
11 
0 w 
70 
0 N 
29 
13 W 
25 
10 W 
4 
3 W 
SW by W 
North 
4 
43 
30 N 
12 
0 w 
69 
0 N 
28 
11 W 
25 
40 W 
2 
35 W 
SW by W 
North 
5 
40 
4 N 
14 
30 W 
69 
0 N 
28 
13 W 
26 
31 W 
1 
42 W 
SW 
North 
6 
36 
11 N 
14 
53 W 
65 
0 N 
23 
56 W 
23 
58 W 
0 
2 E 
South 
• • • 
7 
35 
11 N 
14 
0 W 
65 
0 N 
21 
20 W 
21 
28 W 
0 
8 E 
SSE 
North 
8 
30 
7 N 
15 
47 W 
63 
0 N 
23 
7 W 
21 
6 W 
2 
1 W 
SW 
North 
9 
27 
20 N 
17 
0 W 
60 
0 N 
22 
1 W 
19 
43 W 
2 
18 W 
SW by W 
North 
10 
26 
20 N 
18 
0 W 
60 
0 N 
21 
52 W 
19 
52 W 
2 
0 w 
SW by W 
North 
11 
24 
0 N 
19 
45 W 
60 
0 N 
21 
5 W 
19 
44 W 
1 
21 W 
SW by W 
North 
12 
21 
40 N 
21* 
40 W 
55 
0 N 
19 
43 W 
18 
44 W 
0 
59 W 
SW by W 
North 
13 
20 
0 N 
23 
12 W 
55 
0 N 
In three 
observa 
tions ... 
North 
14 
18 
30 N 
24 
45 W 
53 
0 N 
17 
10 W 
16 
12 W 
0 
58 W 
SW by W 
North 
15 
15 
45 N 
25 
40 W 
50 
0 N 
14 
2 W 
14 
8 W 
0 
6 E 
South 
16 
8 
51 N 
19 
30 W 
40 
0 N 
14 
37 W 
14 
48 W 
0 
11 £ 
SE by S 
North 
17 
0 
30 S 
24 
0 W 
25 
0 N 
12 
31 W 
12 
31 W 
0 
0 
SW 
• • • 
18 
1 
24 S 
25 
0 W 
22 
0 N 
11 
25 W 
11 
27 W 
0 
2 E 
SW 
South 
19 
9 
50 S 
31 
45 W 
9 
0 N 
6 
13 W 
6 
29 W 
0 
16 E 
S by W i W 
South 
20 
14 
0 S 
33 
15 W 
0 
0 S 
4 
28 W 
4 
50 W 
0 
22 E 
SbyW|W 
South 
21 
15 
52 S 
34 
0 W 
3 
0 S 
3 
47 W 
4 
17 W 
0 
30 E 
S by W A W 
South 
22 
18 
40 S 
36 
40 W 
3 
0 S 
0 
46 W 
1 
6 W 
0 
20 E 
sw 4 S 
South 
23 
22 
55 S 
43 
15 W 
20 
0 s 
4 
2 E 
4 
4 E 
0 
2 W 
WSW 
North 
24 
23 
18 S 
43 
12 W 
21 
0 s 
4 
0 E 
4 
0 E 
0 
0 
SSE 
• • • 
25 
25 
35 S 
44 
0 W 
25 
0 s 
4 
59 E 
5 
6 E 
0 
7 W 
SSW i w 
North 
26 
27 
0 s 
46 
10 W 
30 
0 s 
5 
40 E 
5 
49 E 
0 
9 W 
SSW i w 
North 
27 
28 
41 S 
46 
40 W 
30 
0 s 
7 
24 E 
7 
28 E 
0 
4 W 
SSW 
North 
28 
52 
30 S 
64 
40 W 
62 
0 s 
21 
17 E 
21 
18 E 
0 
1 W 
S by E 
South 
29 
55 
40 S 
• 
• • • 
• 
• • • 
23 
49 E 
23 
0 E 
0 
49 E 
SW r W 
South 
30 
• 
• • 
• 
• • • 
• 
• • • 
26 
28 E 
24 
32 E 
1 
56 E 
SW 
South 
31 
60 
46 S 
72 
0 w 
70 
0 s 
27 
37 E 
27 
53 E 
0 
16 W 
N by E 
South 
32 
60 
56 S 
72 
30 W 
70 
0 s 
30 
3 E 
27 
39 E 
2 
24 E 
SW by S 
South 
33 
60 
36 S 
77 
45 W 
70 
0 s 
30 
31 E 
27 
47 E 
2 
44 E 
W by N|N 
South 
34 
57 
38 S 
84 
10 W 
70 
0 s 
28 
18 E 
26 
1 E 
2 
17 E 
WNW 
South 
35 
43 
20 S 
79 
30 W 
65 
0 s 
18 
50 E 
18 
26 E 
0 
24 E 
N|W 
South 
36 
39 
7 S 
78 
0 W 
57 
0 s 
17 
16 E 
17 
12 E 
0 
4 E 
N by E 
North 
37 
36 
30 S 
75 
40 W 
50 
0 s 
15 
57 E 
16 
11 E 
0 
14 W 
NNE 
South 
38 
12 
3 S 
77 
5 W 
9 
37 E 
9 
50 E 
0 
13 W 
S by E i E 
South 
39 
12 
27 S 
78 
0 w 
9 
26 E 
9 
14 E 
0 
12 E 
SW 
South 
40 
14 
18 S 
80 
20 W 
10 
16 E 
9 
54 E 
0 
22 E 
SW 
South 
41 
18 
57 S 
85 
0 W 
• • • 
10 
10 E 
9 
50 E 
0 
20 E 
SSW 
South 
42 
23 
30 S 
87 
52 W 
10 
26 E 
10 
26 E 
0 
0 
S by W 
« « » 
43 
18 
28 S 
70 
15 W 
10 
25 E 
9 
47 E 
9 
38 E 
SW 
South 
On examining the numbers contained in the above tabulated 
results, their general agreement with the deductions of Captain 
Flinders will be immediately obvious. That distinguished offi- 
