The _Choir_ and _Lady Chapel_ are Perpendicular work. The four eastern bays, constituting the Lady Chapel, are earlier than the later ones of the choir, and vary in detail. The triforium passage in the former is outside the building, and the windows are recessed. Strange gargoyles, with figures of apes and demons, adorn the buttresses. The east end is mainly filled with the huge window, the largest in England, which does not leave much space for architectural detail. Above it is the figure of Archbishop Thoresby, the builder of this part of the Cathedral. Panelling covers the surface of the stone, and below the window is a row of seventeen busts, representing our Lord and His Apostles, Edward III. and Archbishop Thoresby. There are two aisle windows; buttresses adorned with niches separate the aisles from the central portion, and others, capped with spires, stand on the north and south of this front. The _Chapter-House_ (Early Decorated) is octagonal, and connected with the north transept by a vestibule, which shows by its architectural details that it was built after the completion of the chapter-house. These constitute the finest examples of Decorated Gothic in England. Buttresses project at each angle, crowned with pinnacles. Curious grotesque gargoyles are seen, and amongst them some strange-looking bears. The roof is in the form of a pyramid, and there is a battlement surrounding it. The _North Transept_ (1241-1260) is a beautiful specimen of Early English work. The five long lancet windows, called the "Five Sisters," surmounted by the seven lancets in the gable, are most effective. The _Central Tower_ is the largest in England, and is in the Perpendicular style (1410-1433). It is 200 feet high. It has windows ornamented with ogee gables, and its surface is covered with niches and panelling. A pair of narrow buttresses support each angle of the tower, decorated with panelling. This tower is one of the greatest achievements of the fifteenth-century builders, and is one of the finest in the world. THE INTERIOR