University of Illinois Urbana-Champaign

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Showing 2251–2280 of 4,076 items
Thumbnail for Sugar-Pecatonica area assessment
Sugar-Pecatonica area assessment
Submitter: Steven Mccauley

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

Thumbnail for Year-book for 1908
Year-book for 1908
Illinois State Geological Survey