Ffolder containing reports, speeches, excerpts from hearings, briefs, discussing the act; the problems of the Imperial Valley; the project - its development and plan, location of the dam, ownership, development and control of the power plant, etc.

Folder containing campaign material regarding the act by which the issuance of State bonds for hydroelectric development would have been authorized.

Folder containing brochures and pamphlets regarding municipal water and power rates, water sanitation, Department assets and liabilities, proposed development and expansion of the City's water system, etc.

Folder containing promotional materials urging voters to approve water and power bond issues for increasing or assuring the City's future supply of water and power from Boulder Dam and the Owens Valley; proposed amendments to the City's charter regarding financing for public works, etc.

Folder containing photographs and lithographs of drawings of Hoover and Parker Dams.

Folder of informational materials regarding the design, financing, construction, distribution system, etc.

Folder of material including clippings, correspondence and reports on meetings of various associations regarding Colorado River water use and water rights, negotiations between states, Congressional action, etc.