University of Illinois Urbana-Champaign

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Showing 2521–2550 of 3,534 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 Special to farm advisers / 1968
Special to farm advisers / 1968
Submitter: Howard Ding

Thumbnail for Illinois birds, Corvidae
Illinois birds, Corvidae
Graber, Jean Weber; Kirk, Ethelyn L.; Graber, Richard Rex