The two round windows are very widely splayed, and the uppermost part of their rim has a different curvature from the rest, as if they had once been straight-sided and round-headed. In their present form they are of uncertain date. The most conspicuous instance of the employment of this rare type of window--viz., the nave of Southwell Cathedral--is pure Norman, but the received opinion ascribes these Ripon examples to the time of Archbishop Roger, and it will be observed that their position harmonizes with the bays of the vaulting, which is presumably his, but has no relation externally to the spacing of the windows of the crypt, which, moreover, have an external splay. The third window was once circular like the rest, for a portion of the rim may still be traced; but as it would otherwise have been bisected by the cross-wall, the later builders have blocked half of it and squared the rest, splaying it at the same time like a squint. The date of the south wall itself is doubtful. It is thinner here than in either the vestry or the crypt. [Illustration: The Resurrection. St. Wilfrid. The Coronation of the Virgin. ANCIENT SCULPTURES PRESERVED IN THE CHAPTER-HOUSE.] Near the modern hearth is a case of curiosities found about the church, among them several fourteenth or fifteenth century reliefs in alabaster, representing the Resurrection, the Coronation of the Virgin, the story of Herodias, and the figure of a bishop, probably St. Wilfrid, with a curious P-shaped implement on his arm. At the north end of the cross-wall it will be observed that the blocked doorway noticed in the choir-aisle was not round-headed on this side, but segmental. The square-headed doorway in the cross-wall itself is modern, and opens into a lobby, the opposite side of which is formed by the Decorated buttress whose lower portion was noticed in the crypt, while on the left is the doorway into the choir, and on the right another square-headed doorway, opening into the vestry. =The Vestry.=--Before the erection of the cross-wall the vaulting evidently extended eastward continuously to the apse, which still contains a fragment of it with two corbels, while further traces, including another corbel, may be seen upon the south wall. Its removal may have taken place either when the two Decorated buttresses were introduced, or at the erection of the Lady-loft, or possibly much later; but was doubtless contemporaneous with the building of the cross-wall, which was evidently intended not only as a partition, but as a 'stop' for the portion of the vaulting that was retained. The present ceiling was put up by Sir Gilbert Scott, who, it is said, would have restored the vaulting had funds allowed. Of the buttresses, that adjoining the doorway has in its front, as well as in the side toward the lobby, a small trefoiled and moulded recess. These two buttresses are built against the piers of the arcading, part of the last arch of which is visible behind the cupboard.