University of Illinois Urbana-Champaign

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Showing 4501–4530 of 7,266 items
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 Yields of shallow dolomite wells in Northern Illinois
Yields of shallow dolomite wells in Northern Illinois
Csallany, Sandor; Walton, William Clarence