University of Illinois Urbana-Champaign

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Showing 631–660 of 1,251 items
Thumbnail for Year-book for 1909
Year-book for 1909
Illinois State Geological Survey

Thumbnail for Summary of water flood operations in Illinois oil pools during 1954
Summary of water flood operations in Illinois oil pools during 1954
Witherspoon Jr., Paul Adams; Jackson, Edwin G.

Thumbnail for Petroleum industry in Illinois in 1956.
Petroleum industry in Illinois in 1956.
Bell, Alfred Hannam; Kline, Virginia Harriet; Pierre, Donald A.

Thumbnail for Some unusual natural areas in Illinois
Some unusual natural areas in Illinois
Evers, Robert August; Page, Lawrence M.