THE DEVELOPMENT OF ARMOUR. 
593 
upper edge. By this means, any protectile getting through the belt 
would still have between it and the vital parts of the ship a 
PLANS SHOWING DISPOSITION OF ARMOUR IN MAGNIFICENT 
AND MAJESTIC. 
Side £ leu eti on S heming Disposition of A 
sloping 4-in. steel deck 
in Fig. 30. 
Fig, SO . 
The general arrangement of armour is shown 
Fig. 31 shows an application of corn pith cellulose 
which has been found very 
effectual in the United States 
the shot holes closing up re¬ 
markably well. 
Attack of Ships Armour. 
In considering the question 
of the attack of ships armour, 
it must be remembered that a 
ships armour may be any¬ 
thing from wrought iron and 
the best hard faced steel, the 
newest ships having the best. 
For practical purposes if a 
table of perforations for the 
ships of any nation be requir¬ 
ed, it is best to base it on a 
table of wrought iron per¬ 
foration and assign to each 
ship its equivalent in wrought 
iron. Obviously these 
equivalents will run from once 
to twice the thickness of the 
ship's plates, generally an 
extra inch added to the result 
will allow for backing 1 and 
skin. 
