Mr Winton, to whom throughout in this short notice of the windows we are much indebted, has pointed out that the earliest Perpendicular glass in the choir is contained in the third window from the east in the south aisle; in the third and fourth windows from the east in the north clerestory; and in the fourth clerestory window from the east on the opposite side. These windows date from the close of the fourteenth century. There is also an early Perpendicular Jesse in the third window from the west in the south aisle of the choir. The other windows of the choir aisles east of the small eastern transepts, as well as the glass in the lancet windows on the east side of the great western transepts appear, he says, to be of the time of Henry IV.; the rest of the glass in the choir is of the reigns of Henry V. and VI., chiefly of the latter. He notices, also, that the white glass in the windows is generally less green in tint than usual, and that he has learnt from Mr Browne that it is all of English manufacture. The great east window was glazed by John Thornton of Coventry. The terms of the contract for this work, dated 1405, are extant. They provide that Thornton shall "portray the said window with his own hand, and the histories, images, and other things to be painted on it." It was to be finished within three years. Glass, lead, and workmen were to be provided at the expense of the chapter, and Thornton was to receive 4s. a week, L5 a year, and L10 at completion, for his trouble. The window is 78 feet high and 32 feet wide, and contains nine lights. It is entirely filled with old glass, except for certain pitches of modern glass, rather crude in colour, and inserted, it is said, after the fire of 1829. It contains 200 panels of figures. The subjects in the upper part are from the Old Testament, reaching from the creation of the world to the death of Absalom. The lower part contains illustrations from the Book of Revelations. In the lowest row of all are representations of kings and archbishops. In the top lights are figures of prophets, saints and kings. At the apex of the window is a representation of the Saviour in Judgment. This window is probably the finest example of Perpendicular glass in England. The windows in the south aisle are rather fragmentary. In the first two from the west the top lights are empty. The second window is remarkable for the delicate modelling and drawing of the heads. The head of the Virgin reminds one of one of Lippo Lippi's Madonnas. That of an old man with a beard in the central light is German in character. If these are compared with the crude and simple design of the heads in the other windows, it will be obvious that they are of a different origin. Nothing, however, is known of their history. The third window has borders by Peckett. It contains the Jesse noted before.