University of Illinois Urbana-Champaign

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Showing 91–120 of 13,532 items
Thumbnail for Deep drilling and deeper oil possibilities in Illinois
Deep drilling and deeper oil possibilities in Illinois
Workman, Lewis Edwin; Bell, Alfred Hannam

Thumbnail for Hydrogeologic and geochemical studies of selected natural radioisotopes and barium in groundwater in Illinois
Hydrogeologic and geochemical studies of selected natural radioisotopes and barium in groundwater in Illinois
Gilkeson, Robert H.; Cartwright, Keros; Cowart, James B.; Holtzman, Richard B.

Thumbnail for Geologic notes
Geologic notes
Jacobson, Russell J.; Trask, C. Brian; Palmer, James E.; Peppers, Russel A.; Nelson, W. John; Killey, Myrna M.; Lineback, Jerry A.