University of Illinois Urbana-Champaign

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Showing 3721–3750 of 3,910 items
Thumbnail for Faculty letter / no. 151-22
Faculty letter / no. 151-22
Submitter: William Ingram

Thumbnail for Geology of the fluorspar deposits of Illinois
Geology of the fluorspar deposits of Illinois
Weller, James Marvin; Grogan, Robert Mann; Tippie, Frank Emerson, joint author

Thumbnail for Faculty letter / no. 1-88
Faculty letter / no. 1-88
Submitter: William Ingram

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