University of Illinois Urbana-Champaign

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Showing 1951–1980 of 2,676 items
Thumbnail for Upper Sangamon River area assessment
Upper Sangamon River area assessment
Submitter: Steven Mccauley

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

Thumbnail for Illinois Technograph v. 036 (1923-1924)
Illinois Technograph v. 036 (1923-1924)
Submitter: Timothy Donohue

Thumbnail for Ogle County soils / 38
Ogle County soils / 38
Smith, Raymond Stratton

Thumbnail for Hydrologic budgets for three small watersheds in Illinois
Hydrologic budgets for three small watersheds in Illinois
Schicht, Richard John; Walton, William Clarence