Page:The castellated and domestic architecture of Scotland from the twelfth to the eighteenth century (1887) - Volume 1.djvu/450

 THIRD PERIOD 430 TANTALLON CASTLE at the northern and southern extremities,, where the building touches the perpendicular rocks. The curtains were perforated with staircases PIG. 375. Tantallon Castle. Plan of Site. and passages communicating between the keep and the north and south towers, but, as afterwards to be explained, these are now built up.