EXPLOSIVES—0O’HERN, 265 
nation. Plate 7 shows the balls and fragments from such a projectile 
of 3-inch caliber weighing 15 pounds. 
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Via, 6,—Combination fuze, 
COMBINATION FUZE 
EXTEFIOR 
AEROPLANE BOMBS. 
The usual type of bombs or grenades dropped from aeroplanes or 
dirigibles consist of stout envelopes containing a bursting charge of 
high explosive, and equipped with a fuse which operates upon impact. 
