Agricultural engineer Ivan Daley Wood (1888-1978) worked on many aspects of irrigation, including soil, water application, and conservation. He worked for state, federal, and private industry for nearly fifty years. His collection documents irrigation practices and projects, particularly in the western United States, and it includes essays, articles, speeches, catalogs, brochures, photographs, and slides. For more information see the finding aid.

This digital collection, with materials dated 1939 to 1964, contains slides and negatives by Wood and others concerning irrigated agriculture throughout the United States.

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