IN THE lEON SHIPS OE THE EOTAL NAVY. 
347 
examples, all determined in English ports, and where it has been ascertained that, from 
the compass remaining in the same position, the results are comparative. 
The column “semicircular” deviation has been added to show the practical disturb- 
ance on the compass at its maximum. 
Himalaya. 
Ship’s 
force. 
Industry. 
Sliip’s 
force. 
Semicircular 
deviation. 
Semicircular 
deviation. 
Year. 
Direction. 
Amount. 
Year. Dii-ection. 
■ S 
Amount. 
1855 
. 182 
0-275 
16 b 
1854 
13 
0-247 
14 20 
1856 
. 182 
0-243 
14 5 
1856 
13 
0-256 
14 50 
1859 
. 169 
0-248 
14 25 
1858 
358 
0-230 
13 20 
1858 
354 
0-182 
10 30 
Urgent. 
1859 
360 
0-185 
10 40 
1855 
1856 
. 175 
. 170 
0-215 
0-183 
12 25 
10 35 
Sharpshooter. 
1857 
. 158 
0-163 
9 25 
1848 
177 
0-126 
7 15 
1859 
. 170 
0-151 
8 45 
1850 
180 
0-105 
6 5 
Simoom. 
1852 
180 
0-280 
16 151 
1852 
. 340 
0-367 
21 35 
1857 
189 
0-235 
13 35/ 
1852. .;... 
. 340 
0-367 
21 35 
Bloodhound. 
1857 
. 355 
0-326 
19 0 
351 
0-256 
1859 
4 
0-316 
18 30 
1845 
14 50 
1847 
351 
0-209 
12 5 
Megsera. 
1851 
1855 
347 
350 
0-219 
0-207 
12 40 
12 0 
1851 
. 190 
0-232 
13 25 
1852 
. 150 
0-238 
13 45 
Jackal. 
1857 
. 162 
0-219 
12 40 
1845 
353 
0-288 
16 45 
Birkenhead. 
1849 
344 
0-266 
15 25 
1847 
. 205 
0-264 
15 15 
1854 
329 
0-316 
18 25 1 
1847 
. 206 
0-265 
15 20 
1859 
339 
0-262 
15 10/ 
1848 
. 206 
0-260 
15 5 
1850 
. 207 
0-264 
15 15 
Lizard. 
1851 
. 206 
0-267 
15 30 
1845 
351 
0-236 
13 40 
Trident. 
1853 
3 
0-188 
10 50 
1858 
6 
0-172 
9 55 
1846 
3 
0-345 
20 10 
Firequeen. 
1848 
. 359 
0-359 
21 0 
1849 
. 360 
0-316 
18 36 
1847 
320 
0-210 
12 10 
1852 
352 
0-342 
20 0 
1852 
329 
0-197 
11 20 
1856 
. 351 
0-376 
22 5 
1859 
2 
0-320 
18 40 
Fairy. 
Caradoc. 
1850 
355 
0-233 
13 30 
1852 
357 
0-202 
11 40 
1848 
. 199 
0-230 
13 20 
1858 
10 
0-201 
11 35 
1855 
Triton. 
. 191 
0-193 
11 10 
Princess Alice. 
0-257 
. 178 
1844 
2 
14 55 
1848 
0-207 
11 55 
1850 
358 
0-225 
13 0 
1852 
. 198 
0-142 
8 10 
1855 
348 
0-213 
12 20 
Oberon. 
Torch. 
1847 
294 
0-266 
15 25 
1846 
340 
0-206 
11 50 
1851 
295 
0-230 
13 20 
1852 
356 
0-186 
10 45 
* Position of the compass changed since the earlier determinations. 
3 A 2 
