This small contribution to Biblical Science has been made possible through the kind ness of the University Court of the University of Edinburgh, in making a grant from the Earl of Moray Endowment for Original Research, which has enabled the writer to concentrate his attention, for the short time at his disposal, on this important subject, and so focus the work of years. It is his pleasant duty to express his sense of indebtedness to the members of that Court. The conclusions reached are his own and must stand or fall according to their truth.