Note 25 — Chapter III · THEORY OF DENUDATION—FURTHER ILLUSTRATIONS.

For these facts illustrating the destructive action of the waves of the sea we are chiefly indebted to the following authorities: Hibbert, Description of the Shetland Isles; Phillips, Rivers, Mountains, and Sea-coast of Yorkshire; Geology of Yorkshire, by the same author; Pennant’s Arctic Zoology, vol. i.; Lyell’s Principles of Geology, vol. i., chapters xx. and xxi.; Gardner’s History of the Borough of Dunwich; the English Cyclopædia, Alluvium.