Fletcher, Banister; Fletcher, Banister: A history of architecture for the student, craftsman, and amateur: being a comparative view of the historical styles from the earliest period (London, 1896)

302

COMPARATIVE ARCHITECTURE.

Tetrastyle.—A portico of four
columns (No. 18, iv., v., xii.).

Torus. —A large convex
moulding, used principally in the
bases of columns (Nos. 29, 30).

Trabeated(L. trabs = abeam).
—A style of architecture, such as
the Greek, in which the beam forms
the constructive type.

Tracery is the ornamental
pattern-work in stone, filling the
upper part of a Gothic window ;
it may be either “ plate ” or “ bar ”
tracery. The term is also applied
to work of the same character in
wood panelling, etc. (Nos. 81, 83,
89, 90, 93) 96, 101).

Transept-—The part of a
church, projecting at right angles
to the main building (see Nos. 69,
70, 74, 94, 95).

Transoms are the horizontal
divisions or cross-bars to the
windows (Nos. 83, 89, 90).

Trefoil (trois-feuilles = three
leaves).—A term applied to this
distribution in Gothic tracery
(No. 159).

T riforium.—The space formed

between the sloping roof over the
aisle and the aisle vaulting. It
occurs in large churches only, and,
from having no windows to the
open air, is often called a blind
storey (Nos. 72, 97, 98, 99, 100).

Triglyphs (Gk. = three chan-
nels) occur in the frieze of a
Doric entablature (Nos. 15, 20,
21).

Turrets are small towers, often
containing staircases (No. 89).

Tympanum.—The triangular
space within the raking cornices of
a pediment (see frontispiece, and
No. 15).

Vault.—An arched covering in
stone or brick over any space (Nos.

35 and 85).

Vestibule.—An ante-room to
a larger apartment, or to a house.

Volute (Lat. voluta = a scroll).
The scroll or spiral occurring in
the Ionic and Corinthian capitals
(Nos. 23, 24, 25, 26).

Wheel-window.—A circular
window, whose mullions converge
like the spokes of a wheel, hence
the name (Nos. 63, 65, 75, 93).