Canterbury was a Benedictine monastery. We enter the _Cloisters_ from the north transept, which are mainly Perpendicular in style, though occupying the site of the old Norman buildings, and containing remains of earlier work. Chillenden, the builder of the nave, is responsible for all the Perpendicular work. The _Chapter-House_ was rebuilt on Norman lines late in the thirteenth century, and re-ceiled and re-windowed in the fourteenth by Chillenden. The ceiling is composed of panels of Irish oak. Unfortunately a severe restoration in 1897 has somewhat vulgarised its former beautiful features. At the east end there is the beautiful priors' sedilia, with glass mosaics on the spandrels of the throne. After the Reformation the chapter-house was used for preachings, and acquired the name of the sermon-house. On the north of the garth was the refectory, the entrance to which may be seen, and also the remains of the monks' lavatory. Passing along we see the Priors', now known as the Green Court, a large open space surrounded with the remains of the domestic buildings of the monastery. The Deanery, previously part of the priors' lodgings, is on the east, and the south was also occupied by the dormitory and refectory, with kitchens. On the west is the Porter's Gate, a Norman structure, with curious ornamentation. The very interesting late _Norman Staircase_ leading to the hall of the Grammar School should be examined. Returning, we traverse the passage north of the chapter-house, and come to the _Lavatory Tower_--erroneously called the baptistry--of Late Norman construction, built by Prior Wibert for supplying the various buildings with water, and adjoining this is the _Library_, which possesses a fine collection of books. A very interesting MS. is the charter of Eadred (949 A.D.), written by Dunstan; there is an ancient portrait of Queen Edgiva (late fourteenth century). The remains of the infirmary and the garden of the monastery may also be seen; and an arched doorway in Palace Street is all that remains of the once famous Archbishop's Palace, which was inhabited by so many distinguished prelates, and the scene of so many events in English history. It was destroyed during the Commonwealth period. DIMENSIONS Total length 522 ft. (inside, 514 ft.) Length of nave 178 ft. Width of nave 71 ft. Length of choir 180 ft. Height of nave 80 ft. Height of central tower 235 ft. Height of west tower 130 ft. PRINCIPAL BUILDING DATES Nave (1378-1411), Prior Chillenden. Choir (1174-1184), William of Sens and English William. Choir-screen (1304-1305), Prior d'Estria. Towers of St. Andrew and Anselm, Prior Ernulf. Retro-choir and corona (1178-1184), English William. Crypt, west part (1070-1109), Lanfranc and Ernulf. Crypt, east part (1178-1184), English William. Central tower (1495), Prior Goldstone.