University of Illinois Urbana-Champaign

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Showing 4231–4260 of 4,634 items
Thumbnail for Annual register. 1912-1913
Annual register. 1912-1913
University of Illinois at Urbana-Champaign

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