University of Illinois Urbana-Champaign

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Showing 1921–1950 of 27,634 items
Thumbnail for Quality Assurance Report for Illinois RiverWatch: 1997
Quality Assurance Report for Illinois RiverWatch: 1997
Stoeckel, Denise B.; Sparks, Richard E.

Thumbnail for Typical rocks and minerals in Illinois
Typical rocks and minerals in Illinois
Ekblaw, George E.; Carroll, Don L.

Thumbnail for INHS Reports, September 1990
INHS Reports, September 1990
Illinois Natural History Survey

Thumbnail for INHS Reports, Summer 2003
INHS Reports, Summer 2003
Illinois Natural History Survey

Thumbnail for Projected effects of increased diversion of Lake Michigan water on the environment of the Illinois River Valley
Projected effects of increased diversion of Lake Michigan water on the environment of the Illinois River Valley
Havera, Stephen P.; Bellrose, Frank C.; Archer, H. Kathleen; Paveglio, Fred, Jr.; Steffeck, Donald W.; Lubinski, Kenneth S.; Sparks, Richard E.; Brigham,Warren U.; Coutant,Larry; Waite,Stephan; McCormick,Dee

Thumbnail for INHS Reports, December 1987
INHS Reports, December 1987
Illinois Natural History Survey

Thumbnail for Annual newsletter / 194958
Annual newsletter / 194958
University of Illinois at Urbana-Champaign. Deptartment of Geology

Thumbnail for Non solus.
Non solus.
Bennett, Scott Boyce