The Online Books Page

Books by Ernst G. Hopson:

Books in the extended shelves:

• Hopson, Ernst G.: Cooperative investigations in California. U.S. Reclamation service in cooperation with the Northern California Irrigation Association. Report on Lower Pit River project. (Govt. Print. Off., 1915), also by United States Bureau of Reclamation, Thomas H. Means, and Northern California Irrigation Association (page images at HathiTrust)
• Hopson, Ernst G.: Report on Pit River Basin (California State Print. Office, 1915), also by W. F. McClure, California. Dept. of Engineering, United States Reclamation Service, and United States Bureau of Reclamation (page images at HathiTrust)
• Hopson, Ernst G.: Report on Pit River Basin (California State Print. Office, 1915), also by W. F. McClure, California. Dept. of Engineering, United States Reclamation Service, and United States Bureau of Reclamation (page images at HathiTrust)

Find more by Ernst G. Hopson at your library, or elsewhere.