The Elements of Geology

The Author's Desk Book Being a Reference Volume upon Questions of the Relations of the Author to the Publisher, Copyright, The Relation of the Contributor to the Magazine, Mechanics of the Book, Arrangement of the Book, Making of the Index, Etc.

Geology of Devils Tower National Monument, Wyoming A Contribution to General Geology

Left Half Harmon

Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology

The Elements of Geology