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		Repository
		 | • |  | (3) |  | • | University of Arizona Libraries, Special Collections | [Undo] | 
 | | 1 | Author: | Schwalen, Harold Christy,
		  1895-1987 | Add to Favorites |  |  | Title: | Harold Christy
		Schwalen papers, 
		1896-1967 (bulk
		  1919-1965) ead |  |  |  | Date(s): | 1896-1967 (bulk
		  1919-1965) |  |  |  | Abstract: | Collection includes research notes, maps, blueprints,
		correspondence, photographs, and other material gathered for his research
		projects. Includes data from the Department's agricultural experiment stations;
		surface and groundwater studies; wells and pump irrigation; flow records;
		climatological data; and manuscript reports and papers. Also includes over 2000
		photographs illustrating well drilling, floods and erosion, pumps and pumping
		plants, irrigation projects, and concrete pipe and ditch
		construction. |  |  |  | Repository: | University of Arizona Libraries, Special Collections |  |  |  | Subjects: | Snow surveys -- Arizona | Groundwater -- Arizona | Water supply -- Arizona | Building, Adobe -- Arizona | Agricultural Engineering -- Arizona | Agriculture -- Arizona | Weather -- Arizona -- Observations | Cotton -- Research -- Arizona | Floodplains -- Arizona -- Cochise County --
			 Management | Floodplains -- Arizona -- Tucson --
			 Management | Gila River Watershed (N.M. and Ariz.) | Guayule | Salt River Project | Irrigation -- Arizona | Lettuce -- Arizona |  |  |  | Similar Items: | Find Similar Guides | 
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