University of Illinois Urbana-Champaign

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Showing 541–570 of 1,795 items
Thumbnail for Field trip guide to kaolinite geodes in Hamilton, Illinois, USA
Field trip guide to kaolinite geodes in Hamilton, Illinois, USA
Freiburg, Jared; Grathoff, Georg; Lasemi, Zakaria

Thumbnail for Activated sludge studies, 1920-1922
Activated sludge studies, 1920-1922
Buswell, Arthur M.; Brensky, A.A.; Neave, S.L.; Long, H.L.

Thumbnail for Illinois Agricultural Pesticides Conference: summaries of presentations
Illinois Agricultural Pesticides Conference: summaries of presentations
University of Illinois at Urbana-Champaign. College of Agriculture Cooperative Extension Service

Thumbnail for African violets
African violets
Culbert, John R.; Hickman, D.