Cannon. An arrangement of iron or brass, with a hollow tube, at the bottom of which gun-powder is lodged, and exploded by hot iron at a touch-hole; and the explosion being directed by the tube, balls and missiles are carried to great distances with destructive force. According to the sized ball which they will explode, they are called 6, 12, and 48 pounders. In a field of battle they are dragged by horses on light carriages, called field or living artillery; and, in other ways, called heavy ordnance.

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