University of Illinois Urbana-Champaign

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Showing 7441–7470 of 7,903 items
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 Petroleum industry in Illinois, 1959
Petroleum industry in Illinois, 1959
Bell, Alfred Hannam; Mast, Richard F.; Oros, Margaret O.; Sherman, Carl W.; Van Den Berg, Jacob

Thumbnail for ISGS Geonews
ISGS Geonews
Illinois State Geological Survey