Bell (of a capital).—The body between the necking and the abacus (which see).
Billet Moulding.—A moulding consisting of a group of small blocks separated by spaces about equal to their own length.
Blind Story.—Triforium (which see).
Boss.—A projecting mass of carving placed to conceal the intersection of the ribs of a vault, or at the end of a string course which it is desired to stop, or in an analogous situation.
Bow Window.—Similar to a Bay-window (which see), but circular or segmental.
Broach-spire.—A spire springing from a tower without a parapet and with pyramidal features at the feet of its four oblique sides (see Fig. [22]) to connect them to the four angles of the tower.
Broachead (Spire).—Formed as above described.
Buttress.—A projection built up against a wall to create additional strength or furnish support (see Flying Buttress).
Byzantine.—The round-arched Christian architecture of the Eastern Church, which had its origin in Byzantium (Constantinople).
Canopy.—(1) An ornamented projection over doors, windows, &c.; (2) a covering over niches, tombs, &c.