University of Illinois Urbana-Champaign

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Showing 301–330 of 2,192 items
Thumbnail for Grand Tower limestone (Devonian) of southern Illinois
Grand Tower limestone (Devonian) of southern Illinois
Meents, Wayne Franklin; Swann, David Henry joint author

Thumbnail for The History of Patenting Genetic Material
The History of Patenting Genetic Material
Sherkow, Jacob S.; Greely, Henry T.

Thumbnail for Reserves and resources of surface-minable coal in Illinois
Reserves and resources of surface-minable coal in Illinois
Treworgy, Colin G.; Bengal, Lawrence E.; Dingwell, Amy G.

Thumbnail for Petroleum industry in Illinois, 1974. Part I. Oil and Gas Developments
Petroleum industry in Illinois, 1974. Part I. Oil and Gas Developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.

Thumbnail for Oil and gas development in Illinois in 1948
Oil and gas development in Illinois in 1948
Bell, Alfred Hannam; Kline, Virginia

Thumbnail for Petroleum industry in Illinois, 1972. Part I. Oil and gas developments
Petroleum industry in Illinois, 1972. Part I. Oil and gas developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.