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SECOND PERIOD 204 CASTLE CAMPBELL the ground level,, and a straight stair in the thickness of the wall leads to the first floor, from which another stair in the opposite corner of the hall (Fig. 172) leads to the upper floors and the roof. The keep is four stories in height, and three of these are vaulted (Fig. 173) with barrel vaults, viz., the ground floor, the first floor, and the top story the two upper stories being divided with a wooden floor resting on coi'bels, which still remain. There do not appear to have been any lofts or upper floors in the vaults of the two lower floors, which are not high enough to admit of
