University of Illinois Urbana-Champaign

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Showing 5821–5850 of 6,537 items
Thumbnail for Special to farm advisers / 1948
Special to farm advisers / 1948
Submitter: Howard Ding

Thumbnail for The mineral content of Illinois waters
The mineral content of Illinois waters
Bartow, Edward; Udden, Johan August; Parr, Samuel Wilson; Palmer, George Thomas

Thumbnail for Limestone resources of Illinois
Limestone resources of Illinois
Krey, Frank; Lamar, J.E.

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.