University of Illinois Urbana-Champaign

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Showing 1141–1170 of 5,813 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 Illinois Water and Climate Summary, 1998
Illinois Water and Climate Summary, 1998
Water and Atmospheric Resource Monitoring Program

Thumbnail for Agstone used in Illinois in 1946
Agstone used in Illinois in 1946
Voskuil, Walter H.; Stevens, Douglas F.; King, Ethel M.

Thumbnail for The Native and Naturalized Trees of Illinois
The Native and Naturalized Trees of Illinois
Miller, Robert Barclay; Tehon, Leo Roy