University of Illinois Urbana-Champaign

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Showing 1111–1140 of 4,748 items
Thumbnail for Properties of chert related to its reactivity in an alkaline environment
Properties of chert related to its reactivity in an alkaline environment
Fraser, Gordon S.; Harvey, Richard David; Heigold, Paul C.

Thumbnail for Sand and gravel resources of Mason County, Illinois
Sand and gravel resources of Mason County, Illinois
Labotka, Theodore C.; Hester, Norman C.

Thumbnail for Back Matter
Back Matter
Submitter: Howard Ding

Thumbnail for News from the Field
News from the Field
Submitter: Howard Ding