=The South Side of the Choir.=--Here the three westernmost bays are Perpendicular and the others Decorated. The westernmost window is smaller than the rest, and is of three lights, with the mullions carried up through the head. The next two windows imitate in curvature their Decorated neighbours, and are of four lights, with the central mullion branching out to form two sub-arches, between which a foliated circle, a feature not common in Perpendicular windows, is introduced into the head. In the fourth bay the Decorated arch has been filled with Perpendicular tracery, but the fifth and sixth windows remain in their original beauty as on the north side, save that in the easternmost the small circles have been mutilated and have lost their foliation. The two flying buttresses resemble those on the north side, but from the points where they meet the wall two pilasters run up into the parapet, which is flush with them and is crowned by a plain coping, while beneath it is a string, with gargoyles. Except at this end the wall, as in the clearstorey of the nave, is not buttressed, notwithstanding the size of the windows and their nearness together. [Illustration: FLYING BUTTRESSES, SOUTH SIDE OF CHOIR.] =The East End.=--The rebuilding of the east end of Archbishop Roger's choir was probably the object of an indulgence of 1284 by Archbishop Wickwaine, a brief of 1285 by Pope Celestine V., two indulgences issued in 1288 and 1300 respectively by Archbishops Romanus and Corbridge, and some credentials issued by the latter in 1302 for a collector of funds. And yet it is hard to fix the date of the work with any exactness. It had apparently not begun in 1286, for a mandate of Archbishop Romanus in that year begins _Cancellus Rypon' ruinosus reparetur_; but it may have been completed before the irruption of the Scots in 1318. Two indulgences of Archbishop Melton, one of which is dated 1328, do indeed allude to some "new work" as still unfinished, but this "new work" may have been the repairs necessitated by the violence of the Scots.[51] The east end of the Cathedral, then, recalls that period in our history when Edward I. was wrestling with the Scottish problem, and was also carrying into effect those lessons in representative government which he had learnt from Simon de Montfort. [Illustration: THE EAST END.]