University of Illinois Urbana-Champaign

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Showing 61–90 of 1,790 items
Thumbnail for Reserves and resources of surface-minable coal in Illinois
Reserves and resources of surface-minable coal in Illinois
Treworgy, Colin G.; Bengal, Lawrence E.; Dingwell, Amy G.

Thumbnail for Letters
Letters
Submitter: Howard Ding

Thumbnail for The Illinois Whigs before 1846
The Illinois Whigs before 1846
Thompson, Charles Manfred

Thumbnail for Pleistocene stratigraphy of Illinois
Pleistocene stratigraphy of Illinois
Willman, Harold Bowen; Frye, John Chapman

Thumbnail for Year-book for 1906
Year-book for 1906
Illinois State Geological Survey

Thumbnail for Directory of Illinois mineral producers, and maps of extraction sites 1997
Directory of Illinois mineral producers, and maps of extraction sites 1997
Masters, John M.; Ipe, Viju C.; Smith, Lisa R.; Falter, Michael

Thumbnail for Classification of the Pennsylvanian strata of Illinois
Classification of the Pennsylvanian strata of Illinois
Kosanke, Robert M.; Simon, J.A.; Wanless, H.R.; Willman, H.B.