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Tondino, an astragal.

Torus , or Tore, a large semicircular mould-ing, used in the base of columns. SeePlate 8.

Trabeation, the entablature.

Triclinium, a dining room.

Triglyph, an ornament peculiar to theDoric frize. See Plate 10.

Trochilus, the scotia.

Turris, a tower; in civil Architecture apavilion, or garden temple.

Tuscan Order , one of the five orders ofArchitecture.

Tympan, the flat surface or space withina pediment.

V.

Vase, the body of a Corinthian capital, alsoan ornament used in Architecture, &c.

Vault, an arched roof, the stones or ma-terials of which are so placed as to sup-port each other.

Vestibule, the entrance to large houses;the part under the portico.

' Volute , the scroll or spiral horn, usedin Ionic and Composite capitals.