According to the itinerary of William of Worcester, the chapter-house, which was built by Bishop Walpole (1289-99), projected eastward about 80 feet, terminating with a polygonal apse, as shown by the dotted lines to our plan. The prolongation of this east walk southwards beyond the south walk of the cloisters, led formerly to the infirmary; of which now only remain the three piers in the lower close; the greater part having been pulled down in 1804. During some time in the eighteenth century the infirmary was used as a workhouse. The dormitories in all monasteries were connected with one of the transepts, usually the south, so that the monks could at all hours easily gain access to the cathedral for the performance of the offices of their order; it is probable, therefore, that the rooms over this east walk of the cloisters here at Norwich may have been used as dormitories, with a staircase on the western side of the south transept leading to them. The dormitories are supposed by some antiquarians to have been placed south of the destroyed chapter-house; the door in the twelfth bay of the east wall of the cloisters (marked 5 on plan) probably giving rise to the supposition. The sculptured vault-bosses in this walk are illustrative of incidents in Gospel story and of the legends of the four evangelists. #The South Walk#, the south wall of which was also the wall of the refectory. A door (marked 6 on plan) at the western end of this walk led to the refectory. To the west were probably the kitchen and offices. The sculptured bosses of the vault over this walk are illustrations of scenes from the Book of Revelation. [Illustration: The Prior's Door.] #The West Walk.#--In the first two bays (marked 7 on plan) are the lavatories of the monks; and in the fourth bay, a door (marked 8 on plan) that formerly led to the guest hall, pulled down by Dean Gardiner, 1573-89. The cellarer whose duty it was to look after the guests probably had apartments above. A door in the last bay leads to the #Choir School#; this was formerly the #Locutory#, where the monks indulged in their daily gossip. The western wall is in the Early Decorated style; the body of the room dating from Norman times. The door into the south aisle of the cathedral from this walk, known as the #Monks' Door#, is of an elaborate example of the Perpendicular style. Returning along the #North Walk#, the latest part of the cloisters, we come again to the prior's door, by entering which the rest of the interior may be inspected.