DUNDONALD CASTLE 171 SECOND PERIOD opposite each other (Fig. 137), terminating in flues carried up doubtless to the battlements, where, if the earth and rubbish were removed, their exits would be found. These are in all essential respects similar to the flue and recess referred to at Yester, and seem to have been fireplaces, the overhanging part of the vault taking the place of the usual projecting FIG. 137. Dundonald Castle. Lower Vault, looking North. hood (see section, Fig. 134.) The windows of this floor in the side walls are very curiously constructed at the inside jambs, as shown in the view looking south (Fig. 138). The great hall (Fig. 1 39A), the roof of which is nearly all gone, has been a very noble apartment, 60 feet 6 inches long by 25 feet 6 inches wide,
