University of Illinois Urbana-Champaign

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Showing 9601–9630 of 13,407 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 The mineral content of Illinois waters
The mineral content of Illinois waters
Bartow, Edward; Udden, Johan August; Parr, Samuel Wilson; Palmer, George Thomas