In situ
Of concrete, cast in position on the building.
Interval between columns.
Decoration in relief simulating woven or entwined stems or bands.
Intersecting tracery
A type of bar tracery used c. 1300, formed by interlocking mullions each branching out in two curved bars of the same radius but different centres.
Inner curve or underside of an arch.
One of the orders of classical architecture, distinguished in particular by downward- and inward-curling spirals (called volutes) on the capital of the column.
Iron Age
In Britain, the period from c. 800-600 B.C. to the coming of the Romans. Also used for those un-Romanized native communities which survived until the Saxon incursions, especially beyond the Roman frontiers.
A style of classical secular architecture at its peak in the early to mid-19th century, derived from the palaces of Renaissance Italy, but often varied by asymmetrical elements.