68. Third Conference of Irrigation and Drainage Engineers -- Experiment Stations of the West -- Logan, Utah, June 1929
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Correspondence and notes organizing the Third Conference of Irrigation and Drainage Engineers in Logan, Utah, including drafts and a report on Colorado irrigation experiments by Ralph Parshall. Parshall's handwritten report, "Irrigation Water Supply and Its Physical Control," given at the fourth meeting of the Western Irrigation and Drainage Research Association in July 1931 in Tucson, Arizona, is located at the end of the folder.