University of Illinois Urbana-Champaign

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Showing 31–60 of 2,358 items
Thumbnail for Glacial tills of Northwestern Illinois
Glacial tills of Northwestern Illinois
Illinois State Geological Survey; Frye, John Chapman

Thumbnail for Quaternary records of central and northern Illinois.
Quaternary records of central and northern Illinois.
Follmer, Leon R.; McKenna, Dennis P.; King, James E.

Thumbnail for Decolorization of southern Illinois silica
Decolorization of southern Illinois silica
Machin, James Stewart; Tooley, Fay Vanisle, joint author

Thumbnail for Guidebook for the sixteenth annual field conference of the Tri-State Geological Society / Illinois State Geological Survey guidebook series, vol. 2
Guidebook for the sixteenth annual field conference of the Tri-State Geological Society / Illinois State Geological Survey guidebook series, vol. 2
Tri-State Geological Society Field Conference (16th : 1952 : Dixon, Ill.); Templeton, J.S.; Willman, Harold Bowen