Reports. All-American canal, report [with bibliography] of All-American Canal Board, Elwood Mead, W. W. Schlecht, C. E. Grunsky, on canal located entirely within United States from Colorado River at Laguna Dam into Imperial Valley, Calif., July 22, 1919, with report of engineer in charge of surveys and examinations, Porter J. Preston, June 17, 1919.

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