A. The beautiful flowing contour of the lines of tracery characteristic of the Decorated style was superseded by mullions and transoms, and, in panel-work, lines of division disposed vertically and horizontally; and in lieu of the quarter-round, semi and tripartite roll and small hollow mouldings of the fourteenth century, angular-edged mouldings with bold cavettos became predominant. Q. Of what kind are the arches of this style? A. Although, in this style, pointed arches constructed from almost every radius are to be found, the complex four-centred arch, commonly called the Tudor arch, was almost peculiar to it; and the cavetto or wide and rather shallow hollow moulding, a characteristic feature of this style, often appears in the architrave mouldings of pier arches, doorways, and windows, and as a cornice moulding under parapets. [Illustration: Window, St. Mary’s Church, Oxford.] [Illustration: Mullion, Burford Church, Oxfordshire.] Q. How are the piers of this style, which support the clerestory arches, distinguished from those of an earlier period? [Illustration: Capital, Piddleton Church, Dorsetshire.] A. The section of a pier, which is common in this style, may be described as formed from a square or parallelogram, with the angles fluted or cut in a bold hollow, and on the flat face of each side of the pier a semicylindrical shaft is attached. The flat faces or sides of the pier and the hollow mouldings at the angles are carried up vertically from the base moulding to the spring of the arch, and thence, without the interposition of any capital, in a continuous sweep to the apex of the arch; but the slender shafts attached to the piers have capitals, the upper members of which are angular-shaped. The base mouldings are also polygonal. Piers and arches of this description are numerous, and occur, amongst other churches, in St. Thomas Church, Salisbury; Cerne Abbas Church, Bradford Abbas Church, and Piddleton Church, Dorsetshire; Yeovil Church, Somersetshire; and Burford Church, Oxfordshire. In some churches a very slender shaft with a capital is attached to each angle of the pier, which is disposed lozengewise, the main body of the pier presenting continuous lines of moulding with those of the arch, unbroken by any capital: as in the piers of Bath Abbey Church, rebuilt early in the sixteenth century. In small country churches we frequently find the architrave mouldings of the arch continued down the piers, which are altogether devoid of any horizontal stop by way of capital. The churches of Brinklow and Willoughby, in Warwickshire, afford instances of this kind. Piers somewhat different to those above described are also to be met with, but are not so common. Q. What else may be noted respecting some of the piers and arches in this style?