Local Attraction of the Sieam-vessel Comet, 
291 
Local Attraction of His Majesty's Steam-Vessel Comet, on two 
Compasses placed in the Fore and Aft Line of the Vessel, at 
the Stations stated above. 
Local Attraction at Fore-Compass. 
Local Attraction at After-Compass. 
Bearing 
of Ship’s 
Beai'ing of 
Bearing of 
Local At- 
traction, 
Fore- 
Bearing 
of Ship’s 
Bearing of 
Bearing of 
Local At- 
Shore-Sta- 
Fore-Com-. 
Shore-Sta- 
After-Com- 
traction 
Head by 
tion, from 
pass, from 
Head by 
tion from 
pass from 
from Af- 
Fore- 
Fore-Com- 
Shore-Sta- 
After- 
After-Com- 
Shore-Sta- 
ter-Com- 
Compass. 
pass. 
tion. 
Compass. 
Compass. 
pass. 
tion. 
pass. 
E NE 
S 27\d W 
N4oWe 
— 13“ 6 
N E 
S4f OW 
N 42° 20 
— 1 20 
N E 
31 0 
43 1 
— 12 1 
N E 
41 20 
42 10 
— 0 50 
do. 
30 40 
42 56 
— 12 16 
N E 
41 20 
42 21 
— 1 1 
do. 
32 0 
44 31 
— 12 31 
NE by N 
46 1 
47 17 
— 1 16 
NE by N 
38 10 
48 40 
— 10 30 
NN E 
49 50 
50 17 
— 0 27 
N NE 
42 0 
50 12 
— 8 12 
N by E 
50 40 
51 41 
— 1 1 
Nby E 
44 20 
51 20 
— 70 
N by E 
53 0 
53 25 
— 0 25 
do. 
47 20 
54 41 
— 7 21 
North 
54 40 
54 58 
— 0 18 
Nor. i E 
51 0 
53 59 
— 3 59 
do. 
55 40 
55 50 
— 0 10 
do. 1 E 
53 10 
54 33 
— 1 23 
do. 
57 0 
56 57 
-f 0 3 
N by tv- 
54 40 
55 1 
— 0 21 
do. 
56 40 
56 46 
— 0 6 
do. 
54 40 
55 12 
— 0 32 
do. 
56 20 
56 45 
— 0 25 
do. 
54 0 
55 19 
— 1 19 
do. 
57 40 
57 30 
+ 0 10 
do. 
56 20 
55 56 
-1- 0 24 
N by W 
58 20 
58 6 
+ 0 14 
do. 
56 20 
56 32 
— 0 12 
N by W 
58 30 
58 5 
-P 0 25 
do. 4 W 
59 0 
56 18 
-f 2 24 
E SE 
54 0 
53 58 
-PO 2 
SE by E 
45 20 
54 30 
— 9 10 
E SE 
52 0 
51 15 
-f 0 45 
E by S 
43 0 
52 58 
— 9 58 
SE by E 
54 0 
53 17 
-1-0 43 
E SE 
45 40 
54 34 
— 8 54 
E SE 
55 0 
54 48 
-P 0 12 
E by S 
46 20 
56 24 
— 10 4 
E SE 
55 0 
54 43 
+ 0 7 
E by S 
46 40 
56 17 
— 10 47 
As the state of the tide would not admit of the vessel being 
warped to the other points^ we again descended the Riverj and, 
the weather being very favourable, we were enabled to deter- 
mine the difference in the bearing of these two compasses by an 
observer at each, keeping the other compass in the line of his 
sights, while the vessel was put about with her head to different 
points. In this way the following observations were made ; and, 
as the after-compass^ from the preceding table, appears to have 
very little local attraction, the difference in the bearing of the 
two instruments may be principally attributed to the fore-com- 
pass. 
