University of Illinois Urbana-Champaign

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Showing 811–840 of 4,140 items
Thumbnail for Sand and gravel resources of Macon County, Illinois
Sand and gravel resources of Macon County, Illinois
Hester, Norman C.; Anderson, Richard C.

Thumbnail for A Century of Biological Research
A Century of Biological Research
Mills, Harlow B.; Bennett, George William; Decker, George Clemens; Scott, Thomas G.; Ross, Herbert H.; Ayars, James S.; Carter, Cedric J.; Warrick, Ruth R.; East, Bessie B.

Thumbnail for Possible recovery of coal from waste at Illinois mines
Possible recovery of coal from waste at Illinois mines
Smith, Cloyde Moffett; Mitchell, David Ray

Thumbnail for Petroleum industry in Illinois, 1970. Part I. Oil and Gas Developments
Petroleum industry in Illinois, 1970. Part I. Oil and Gas Developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.