University of Illinois Urbana-Champaign

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Showing 3181–3210 of 14,341 items
Thumbnail for Bituminous coal storage practice
Bituminous coal storage practice
Stoek, Harry Harkness; Hippard, Clemence William

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

Thumbnail for Glacial tills of Northwestern Illinois
Glacial tills of Northwestern Illinois
Illinois State Geological Survey; Frye, John Chapman