Ambulant Battery, heavy guns mounted on traveling carriages, and moved as occasion may require, either to positions on the coast or in besieged places.

Barbette Batteries are those without embrasures, in which the guns are raised to fire over the parapet.

Battery d’Enfilade is one that sweeps the whole length of a line, or the face or flank of any work.

Battery de Reverse is one which plays upon the rear of the troops appointed to defend a place.

Battery en Echarpe is that which plays obliquely.

Breaching Battery. See [Breach].

Covered, or Masked Battery is when the cannon and gunners are covered by a bank or breastwork, commonly made of brushwood, fagots, and earth.

Cross-batteries are two batteries which play athwart each other upon the same object, forming there an angle, and battering with more effect, because what one battery shakes the other beats down.

Facine and Gabion Batteries are batteries constructed of those machines where sods are scarce, and the earth very loose and sandy.

Floating Batteries are such as are erected either on rafts or on the hulls of ships.