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n. A type of fortification consisting of a pair of demi-bastions with a curtain wall connecting them and with two long sides directed upon the faces of the bastions, or ravelins of the inner fortifications, so as to be defended by them.

n. An outwork composed of two demibastions joined by a curtain. It is connected with the works in rear by long wings.

n. In fortification, a work with one front only, thrown out beyond the glacis, for the purpose of occupying rising ground, barring a defile, covering a bridge-head, strengthening any weak salient, or protecting buildings, the including of which in the original enceinte would have extended it to an inconvenient degree.

"It could house only 200 men, so a stockaded hornwork with barracks was added later."

rail fence    barrack-yard    oyster-shell    well-digger    oilcan