University of Illinois Urbana-Champaign

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Showing 3271–3300 of 3,345 items
Thumbnail for Bibliography and index of Illinois geology through 1965
Bibliography and index of Illinois geology through 1965
William, H.B.; Simon, Jack A.; Lynch, Betty M.; Langenheim, Virginia A.

Thumbnail for Illinois Technograph v. 035 (1922-1923)
Illinois Technograph v. 035 (1922-1923)
Submitter: Timothy Donohue

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