University of Illinois Urbana-Champaign

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Showing 2881–2910 of 3,042 items
Thumbnail for Subsidence resulting from mining
Subsidence resulting from mining
Young, Lewis Emanuel; Stoek, Harry Harkness

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 Catalog of Devonian and deeper tests in central Illinois
Catalog of Devonian and deeper tests in central Illinois
Stevenson, D.L.; Keys, John N.; Cluff, Robert M.