Report of the Department of Conservation and Development.

Includes the report of the Division of Reclamation, 1921/1922-1923/1924; and: the Division of Columbia Basin Survey, 1921/1922.

Proceedings of Conservation Commission.

Mode of access: Internet.

Conservation and the gospel of efficiency; the progressive conservation movement, 1890-1920.

"Bibliographical note": p. [277]-282. Bibliographical footnotes.