University of Illinois Urbana-Champaign

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Showing 9301–9330 of 16,709 items
Thumbnail for Oil investigations in 1917 and 1918
Oil investigations in 1917 and 1918
Illinois State Geological Survey; Barrett, Nellie Okla; Nebel, Merle Louis; Coryell, Horace Noble; Tough, Fred H.; Williston, Samuel H.; Savage, Thomas Edmund

Thumbnail for Proceedings: second Sanitary Engineering Conference: radiological aspects of water supplies
Proceedings: second Sanitary Engineering Conference: radiological aspects of water supplies
Illinois State Department of Public Health and the University of Illinois