ON AN IRON STEAM-VESSEL 
283 
Tables VIII. and IX. 
Showing the Deflection both of the Horizontal and Dipping Needle when the Garry- 
owen was warped towards them, first with her Head nearest to the Instruments, 
and then with her Stern. 
III. Nov. 17, 1835.— Barom. 30-1, Therm. 51°. 
eagnetic 
Distance of nearest 
part of vessel from 
dipping-needle on 
quay. 
Vessel’s HEAD nearest to the instruments. 
Vessel’s STERN nearest to the instruments. 
tion in 
vessel 
lached. 
Reading of 
dipping- 
needle. 
Distance 
from D. 
Reading of 
needle D. 
Distance 
from O. 
Reading of 
needle O. 
Distance of nearest 
parts of vessel from 
dipping-needle. 
Reading of 
dipping- 
needle. 
Distance 
from D. 
Reading of 
needle D. 
Distance 
from O. 
Reading of 
needle O. 
o 
r 
feet. 
214 from stem 
70 30 
feet. 
208 
South. 
feet. 
223 
South. 
feet. 
214 from tafrail. 
70 30 
feet. 
208 
South. 
feet. 
223 
South. 
182 
70 30 
169 
0° 15' E. 
189 
0° 15' E. 
182 
70 30 
169 
0° 10' W. 
189 
0° 5'W. 
5 E. • 
81 
70 20 
76 
0 45 E. 
90 
0 50 E. 
81 
70 50 
76 
0 30 W. 
90 
0 45 W. 
42 
69 45 
29 
3 30 E. 
51 
2 10 E. 
42 
71 15 
29 
2 40 W. 
51 
2 30 W. 
. 
22 
68 45 
9 
7 5 E. 
31 
5 56 E. 
22 
72 0 
a 
16 30 W. 
31 
7 5 W. 
Wind < rom the west, Tainy weather. 
3 Tide carried stern nearer to compass, but distance was not measured. 
Nov. 18, 1835.— Barom. 29-9, Therm. 52°. 
Dipping-needle. 
Needle D. 
O. 
fit 
V. 
tic 
-f 
ch. 
Distance 
of nearest 
part from 
instru. 
ment. 
Reading of 
needle. 
HEAD 
nearest. 
Reading of 
needle, 
STERN 
nearest. 
Distance 
from D. 
Reading of 
needle, 
HEAD 
nearest. 
Reading of 
needle, 
STERN 
nearest. 
Dist. 
from O. 
Reading of 
needle, 
HEAD 
nearest. 
Reading of 
needle, 
STERN 
nearest. 
Dist. 
from E. 
Reading of 
needle, 
HEAD 
nearest. 
Reading of 
needle, 
STERN 
nearest. 
Dist. 
from V. 
Reading of 
needle, 
HEAD 
nearest. 
Reading of 
needle, 
STERN 
nearest. 
- 
feet. 
276 
o * 
70 25 
o / 
70 25 
feet. 
256 
South. 
South. 
feet. 
265 
South. 
South. 
feet. 
262 
South. 
South. 
feet. 
273 
South. 
South. 
185 
70 25 
70 25 
166 
0° 5'E. 
0° 10' W. 
175 
South. 
South. 
172 
0° 25' E. 
0° 15' W. 
184 
South. 
0° 15' W. 
E.< 
78 
70 10 
70 35 
59 
1 30 E. 
0 50 W. 
68 
0o 50' E. 
0° 45' W. 
65 
1 30 E. 
1 0 W. 
76 
1° 15' E. 
0 50 W. 
47 
69 50 
70 40 
26 
2 30 E. 
4 10 W. 
37 
2 10 E. 
2 50 W. 
34 
4 0 E. 
4 55 W. 
45 
3 30 E. 
3 0 W. 
36 
69 30 
70 50 
16 
5 30 E. 
15 0 W. a 
26 
3 50 E. 
6 30 W. 
23 
9 0 E. 
13 0 W. 
35 
5 45 E. 
5 25 W. 
L 
29 
68 50 
70 50 
6 0 E. 
31 50 W. a 
19 
4 5 E. 
9 50 W. 
26 
7 35 E. 
6 15 W. 
Moderate breeze, with showers of rain. 
3 Tide forced vessel near to instrument. 
In these observations the instruments were placed on a small quay on the west side of Tarbert Bay. Breadth 
of the S.E. end of quay 33| feet. Height of quay above high water 3 feet. Iron tafrail above water line 
11 feet. Vessel’s draught of water 5 feet 3 inches. Stern of vessel above water line 8| feet. 
2 o 2 
