University of Illinois Urbana-Champaign

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Showing 1081–1110 of 1,654 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 GeoSciences / 1989-93
GeoSciences / 1989-93
Submitter: Howard Ding

Thumbnail for Illinois Research. [vol.1-vol.5]
Illinois Research. [vol.1-vol.5]
Submitter: Howard Ding

Thumbnail for Mackinaw River area assessment.
Mackinaw River area assessment.
Illinois Department of Natural Resources

Thumbnail for Headwaters area assessment
Headwaters area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis

Thumbnail for Illinois Technograph v. 027 (1912-1913)
Illinois Technograph v. 027 (1912-1913)
Submitter: Timothy Donohue