University of Illinois Urbana-Champaign

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Showing 6721–6750 of 14,607 items
Thumbnail for Headwaters area assessment
Headwaters area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis

Thumbnail for Petroleum industry in Illinois in 1955.
Petroleum industry in Illinois in 1955.
Bell, Alfred Hannam; Kline, Virginia Harriet; Witherspoon Jr., Paul Adams; Pierre, Donald A.

Thumbnail for Pinckneyville area geological science field trip
Pinckneyville area geological science field trip
Reinertsen, David L.; Goodwin, Jonathan H.

Thumbnail for Water flooding of oil sands in Illinois
Water flooding of oil sands in Illinois
Squires, Frederick; Bell, Alfred Hannam