distribution , &c. of the 7 nagnetic intensity in ships of war. 327 
but if the means of the intensities of the former and latter 
sections be determined from the stations G, g, before the 
main-mast, to the stations O, 0, abreast of the fore-mast, this 
equality will be no longer preserved ; the mean being for the 
Starboard section 105.23, 
and for the Larboard section 95.6 7. 
Those parts of the sections therefore which are abaft the 
main-mast, have their intensities very nearly equal ; but in 
those before the main-mast, the intensity of the starboard sec- 
tion exceeded that of the larboard in nearly the ratio of 
11 to 10. 
It may also be remarked, that the intensity in the after 
part of the ship is much more considerable than in the fore- 
wart part. For if the mean results of the stations from A to 
G, and a to g be taken and contrasted with the means of an 
equal number of stations from H to O and h to 0, the former 
will be found to exceed the latter considerably. The follow- 
ing table contains the results. 
Station from 
Mean Intensity. 
A to G 
115-43 
a to g 
111.67 
H to O 
100.77 
h to 0 
92.87 
Hence it appears that if the vessel were divided into two 
parts, tranversely, between the stations GH,g h, the mean 
of the intensities of the seven stations in the after part will 
