LLET 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.

CAMPANILE.--The Italian name for a bell-tower.

[Illustration: FIG. _J_.--BUTTRESS.]

CAPITAL.--The head of a column or pilaster (Figs. _L_ to
_P_).

CATHEDRAL.--A church which contains the seat of a bishop;
usually a building of the first class.

CERTOSA.--A monastery (or church) of Carthusian monks.

CHAMFER.--A slight strip pared off from a sharp angle.

CHANCEL.--The choir or eastern part of a church.

CHANTRY CHAPEL.--A chapel connected with a monument or tomb
in which masses were to be chanted. This was usually of
small size and very rich.

CHAPEL.--(1) A chamber attached to a church and opening out
of it, or formed within it, and in which an altar was
placed; (2) a small detached church.

CHAPTER HOUSE.--The hall of assembly of the chapter (dean
and canons) of a cathedral.

[Illustration: FIG. _L_.--EARLY NORMAN CAPITAL.]

[Illustration: FIG. _M_.--EARLY ENGLISH CAPITAL.]

[Illustration: FIG. _N_.--LATER NORMAN CAPITAL.]

[Illustration: FIG. _O_.--PERPENDICULAR CAPITAL.]

[Illustration: FIG. _P_.--EARLY FRENCH CAPITAL.]

CHATEAU.--The French name for a country mansion.

CHEVRON.--A zig-zag ornament.

CHEVET.--The French name for an apse when surrounded by
chapels; see the plan of W