Swing bells.—The top part of the bells to be made meet together in front, the height of the breast; then forced backwards with an extended arm, and be made to touch behind: in doing this, the palm of the hands must be uppermost, and the elbows well down: this circle must be repeated 14 or 15 times: Time, the circle performed, in 2 seconds.

Ground bells.—The recruit will let fall the bells by his sides, and remain steady and firm.

DUNES, Fr. sand hills, commonly called downs. As les dunes sur la cote de Flandres; the downs, or sand hills along the coast of Flanders.

DUNGEON, -
DONJON, Fr.

in fortification, is commonly a large tower or redoubt of a fortress, whither the garrison may retreat, in case or necessity, and capitulate with greater advantage. Also a dark and secluded place in which prisoners were kept.

DUTY, in a military sense, is the exercise of those functions that belong to a soldier; yet with this nice distinction, that duty is counted the mounting guard, &c. where no enemy is directly to be engaged; for when any body of men marches to meet the enemy, this is strictly called going upon service.

On all duties, whether with or without arms, picquets, or courts martial, the tour of duty begins with the eldest downwards. An officer who is upon duty cannot be ordered for any other before that duty is finished, except he be on the inlying picquet, as then he shall be relieved, and go on the duty ordered.

Military Duties may be divided into two general classes, under the heads of Brigade and Regimental duties.

Brigade duties, are those which one regiment does in common with another, collectively or by detachments; and of which the brigade major keeps a regular roster.

Regimental Duties, are those which the several companies of a regiment perform among themselves, and of which the adjutant keeps a regular roster.