• 100. Irrigation pumping in Colorado, May 1928 

        Creator(s):Parshall, Ralph L. (Ralph Leroy), 1881-1959, author; McLaughlin, W. W., author; Code, W. E. (William E.), 1891-, author
        Format:documents (object genre); memorandum; correspondence; financial records; bullletins
        Correspondence, project outline, and associated materials related to the cooperative field study "Pumping for Irrigation and Drainage in Colorado" proposed by Ralph Parshall. Materials include letters related to the search ...