University of Illinois Urbana-Champaign

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Showing 9301–9330 of 45,297 items
Thumbnail for Mineralogy of glacial tills and their weathering profiles in Illinois : Part I. Glacial tills
Mineralogy of glacial tills and their weathering profiles in Illinois : Part I. Glacial tills
Willman, Harold Bowen; Glass, Herbert David; Frye, John Chapman

Thumbnail for INHS Reports, Spring 2009
INHS Reports, Spring 2009
Illinois Natural History Survey

Thumbnail for Engineering and legal aspects of land drainage in Illinois.
Engineering and legal aspects of land drainage in Illinois.
Pickels, George Wellington; Leonard, Frank Bonner, b. 1891.

Thumbnail for Additional Content
Additional Content
Submitter: Howard Ding