ARMOUR AND ITS ATTACK BY ORDNANCE. 
89 
Fig. 18 . 
On September 14th, 1888, at 4000 yards range, elevation 69°, charge 
30 lbs., a similar projectile struck and broke up into small pieces, 
making a disfigurement 11 inches x 6 inches, part of the shot being- 
embedded. The plate was bulged to a height of one inch. The pro¬ 
jectile was not thought to have struck truly point first. 
Two questions are here involved : (1) the chance of striking; (2) 
of perforating. It appears that scarcely 10 per cent, of hits were 
