Octagon) is lighted by windows assimilating with the large windows in the angles of the Octagon; the upper story is lighted by louvres as adapted to a belfry, for which purpose this chamber was originally designed; the lower windows have been reconstructed, a series of flying buttresses (which had been taken away) have been re-placed against the angle divisions, which are finished with embattled turrets instead of pinnacles, and between them runs an open-work parapet. The whole of the Lantern has been repaired, and the exterior wood work re-covered with lead. The portion of the north Transept which fell down in 1699, although soon afterwards carefully restored, and the mouldings and ornaments nicely replaced, may yet be distinguished from the old work: the Tuscan door-arch, however, in its northern face, is quite out of place here, not according with the style of the building in which it is placed. The restorations were executed under the directions of Sir Christopher Wren. The northern face of the Transept shows two pairs of Norman windows, the second pair being longer than those in the lower tier; above these is an arcade of small arches, and over these are two high Perpendicular windows, which reach partly into the gable. Over the doorway in the eastern aisle is an original Norman window, and in the western aisle is a replaced one. The west front of the Lady Chapel[53] is richly decorated with niches, and has a noble window, under which is an arcade of small arches formed entirely in the thickness of the wall, in the back of some of which may be seen traces of coloured decoration; the gable point is adorned with a niche rising above the pierced parapet running up the sides. On each side of the building are five large windows, the tracery of which is much decayed, having been executed in a softer kind of stone than the walls. Between each two windows is a deep projecting buttress surmounted by a crocketed pinnacle; at the angles are double buttresses, on which are two kinds of tabernacles, both are square and occupy the breadth of the buttress, the upper one is recessed in the body of the buttress, the lower one is open on three sides, and had small pillars at the front angles rising from the set-off and carrying the projecting canopy; the tops being finished with crocketed pinnacles. The east end is not so richly ornamented as the west; the window is a very fine one but not so large as the western one, and there are no niches on the sides nor beneath it. [Footnote 53: Now in course of restoration.] The north side of the Choir is somewhat hidden by the Lady Chapel, which stands parallel to it, although the latter is much shorter; but a better view may be had by going between them. An opportunity is also thus afforded of observing the original Norman windows of the triforium of the Transept.