BUILDINGS 21 the Chapter House, a magnificent octagonal parlia- ment house of one immense chamber : later the Chapter House was connected with the main building by the Vestibule. Then the Choir was replaced by a larger and finer building in the then latest archi- tectural fashion. The new choir contained the east window, wrhich in the eyes of contemporaries was wonderful and unrivalled for its size and painted glass. It occupies nearly all the central space of the east wall from a few feet above the ground to almost the apex of the gable. Gothic archi- tecture wras so marvellously adaptable that all these parts, built at widely different times, at various and strongly-contrasted stages of the development of this English mediaeval architecture, together make a single building that appears to possess the most felicitous unity of general design and a per- fectly wonderful diversity of sectional design, for every part is in complete sympath}^ with the scheme as a wrhole. To the east of the Central Tower is the Choir, which was kept exclusively for the services ; to the west, the Nave, the poptdar part. The entrance to the Choir from the west is made through the stone screen of Kings, which, \\ith the lofty organ wrhich rests on it, prevents people in the Nave from getting anything more than a glimpse of what is taking place in the Choir. Over the western ends of the Nave aisles are the twin west towers, which contain the bells. The high altar and reredos stood in the middle of the Choir between the two choir transepts, the huge windows of which present in picture the life stories of St. Cuthbert and St. William respectively. The I^ady Chapel, the part of the choir to the east of the reredos, was very important in pre-Reforma- tion days when the cult of the Virgin wras very c