THE SANDS.
Origin of Sand--Sand now Carried to the Sea--Beach Sands of Northern
Africa--Sands of Egypt--Sand Dunes and Sand Plains--Coast Dunes--Sand
Banks--Character of Dune Sand--Interior Structure of Dunes--Geological
Importance of Dunes--Dunes on American Coasts--Dunes of Western
Europe--Age, Character, and Permanence of Dunes--Dunes as a Barrier
against the Sea--Encroachments of the Sea--Liimfjord--Coasts of
Schleswig-Holstein, Netherlands, and France--Movement of Dunes--Control
of Dunes by Man--Inland Dunes--Inland Sand Plains