Page:The castellated and domestic architecture of Scotland from the twelfth to the eighteenth century (1887) - Volume 1.djvu/380

 THIRD PERIOD 360 EDZELL CASTLE the result being that the upper corbels (which project only the same distance as the lower ones) are alone useful in carrying the parapet. The i. ? 8 . I B lower tier of corbels carries nothing, and simply forms an ornament or enrichment. This is a form of corbelling which was introduced about the end of