THIRD PERIOD 406 THE DEAN CASTLE like the similar apartments at Borthwick, Doune, etc. The oratory is situated in the eastern wall, and is covered with a circular vault. It has a window to the east (now built up), a piscina, much broken, on the south side, and an ambry in the north wall. There are now two fireplaces in the upper hall, that in the west wall being apparently a late insertion. The hall is lighted by one window in the south wall, which has been enlarged, and is provided with garde-robes and closets in the walls. A large continuous corbel forms a cornice on each side of this hall to pro- vide a rest for the timbers of the upper floor. FIG. 351. The Dean Castle. View from the South- West. The upper part of the keep is now greatly ruined, but it is still possible to form a fair idea of the position of the battlements and the upper rooms. The parapet walk ran all round the keep (Fig. 350), the east and west gables being built on the inner edge of the thick walls.
