§ 62. The Cistercian dorter and rere-dorter shew no important variation from the habitual plan. The position of the rere-dorter, at the end of the dorter or at right angles to it, or, as at Furness, in a separate building, was dictated by convenience for drainage. The room above the chapter-house was sometimes separate, as at Kirkstall and Valle Crucis, but was open to the rest of the dorter at Buildwas and Fountains. It may possibly have been appropriated to the abbot in the first instance, and afterwards, like the second dorter at Canterbury, may have been used by the obedientiaries or by the prior. At Valle Crucis the room contains a fireplace and is entered by a passage on the north side, which also leads to a small room next the church. Originally the day-stair to the dorter was placed in the eastern range of buildings, between the parlour and the dorter sub-vault: clear indications of this remain at Fountains and Kirkstall, and the day-stair is still in this position at Cleeve. But in most cases the stair was afterwards removed and placed against the west side of the sub-vault, between the eastern range and the range opposite the church, in the position which in Benedictine houses is generally occupied by a passage to the outer buildings. By a most unusual arrangement, the dorter at Waverley was on the ground-floor of the range, raised only by a few steps above the cloister. There was no upper floor, although a room between the dorter and parlour was divided into two stages[11]. The chapter-house was an undivided oblong building, vaulted in three bays; and there was, of course, no special night-entry to the church. [Illustration: Fig. 11. Fountains abbey: plan.]