The Rectangular Keep of a Norman Castle, 133 The next drawing shows a plan of the third or uppermost floor, at the level of the clerestory of the chapel. Here the outer wall is shown perforated all round by a mural gallery, which communicates with the three well staircases and with the chapel. Finally follows a vertical section of the whole keep from east to west, in which is shown the chapel with its clere- story above and its two tiers of crypts below. These draw- ings, which more especially belong to the detailed description of the Tower of London which follows in its place, are here inserted as illustrating what is written of Norman rectangular keeps in general. The kitchen, though a necessary appendage to a keep, is not often to be discovered. Probably the cooking was of a simple character, mostly carried on before an open fire, or by boiling, or broiling over a brazier. There is a kitchen in the forebuilding at Rochester, high up ; and one
