University of Illinois Urbana-Champaign

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Showing 61–90 of 4,768 items
Thumbnail for Chemical and physical character of the Pennsylvanian sandstones in central Illinois
Chemical and physical character of the Pennsylvanian sandstones in central Illinois
Bradbury, James C.; Ostrom, Meredith O.; Lamar, John Everts

Thumbnail for Mississippian border of eastern interior basin
Mississippian border of eastern interior basin
Weller, James Marvin; Sutton, Arle H.

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 Ecological Assessment of Created Wetlands in Illinois
Ecological Assessment of Created Wetlands in Illinois
Crawford,John A.; Kuhns,Andrew R.; Mettler-Cherry,Paige

Thumbnail for The petroleum industry of southeastern Illinois
The petroleum industry of southeastern Illinois
Blatchley, Willis Stanley; Weller, Stuart