Fig. r.—Perpendicular Crocket.

Crossing.—The intersection (which see) in a church or cathedral.

Cross Vault.—A vault of which the arched surfaces intersect one another, forming a groin (which see).

Crypt.—The basement under a church or other building (almost invariably vaulted).

Cusp.—The projecting point thrown out to form the leaf-shaped forms or foliations in the heads of Gothic windows, and in tracery and panels.

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Dec.The Gothic architecture of the fourteenth century in England. Abbreviated Dec.
Decorated.

Detail.—The minuter features of a design or building, especially its mouldings and carving.

Diaper (Gothic).—An uniform pattern of leaves or flowers carved or painted on the surface of a wall.