University of Illinois Urbana-Champaign

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Showing 1171–1200 of 1,249 items
Thumbnail for Big Rivers area assessment
Big Rivers area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis; Illinois Department of Natural Resources. State Geological Survey Division

Thumbnail for Farm news for weeklies. 1951
Farm news for weeklies. 1951
Submitter: Howard Ding

Thumbnail for The mineral content of Illinois waters
The mineral content of Illinois waters
Bartow, Edward; Udden, Johan August; Parr, Samuel Wilson; Palmer, George Thomas