University of Illinois Urbana-Champaign

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Showing 871–900 of 44,692 items
Thumbnail for Geology and mineral resources of the Marseilles, Ottawa, and Streator quadrangles,
Geology and mineral resources of the Marseilles, Ottawa, and Streator quadrangles,
Willman, Harold Bowen; Payne, James Norman; Voskuil, Walter Henry

Thumbnail for Field Guide to Silkmoths of Illinois
Field Guide to Silkmoths of Illinois
Bouseman, John K.; Sternburg, James G.

Thumbnail for Headwaters area assessment
Headwaters area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis