DOUNE CASTLE 421 THIRD PERIOD by several ditches, which can yet be traced. There has also been an outer wall at the top of the sloping bank, the foundations of which still exist. This castle is almost all built in one style, and is all of about the same date. Fig. 362 shows the whole in a bird's-eye view, with a few suggested restorations. The portion containing the entrance passage (Fig. 364) has probably been first built, along with the walls of enceinte. It has evidently been intended to complete the buildings all round the quadrangle. This is apparent from the tusks left in the south-west gable for the continuance of that side, and also from the large windows formed in the south wall of enceinte (Fig. 362), in preparation for large apart- ments intended to be erected on that side of the quadrangle. Pia. 364. Donne Castle. Plan o f Ground Floor. The walls of enceinte are 40 feet high (section, Fig. 367), besides the parapet of about 6 feet, which has a projecting string-course, but 110 machicolations occur except over the postern door in the west wall (Fig. 363). The walls are however defended with open bartizans at the angles and in the centre of the curtains. The whole building (Fig. 364) measures 155 feet by 143 feet. The block over the entrance at the north- east angle is complete in itself, and would form a large castle inde-
