University of Illinois Urbana-Champaign

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Showing 541–570 of 975 items
Thumbnail for Geology and mineral resources of the Marseilles, Ottawa, and Streator quadrangles,
Geology and mineral resources of the Marseilles, Ottawa, and Streator quadrangles,
Willman, Harold Bowen; Payne, James Norman; Voskuil, Walter Henry

Thumbnail for Wind Waves on the Water
Wind Waves on the Water
Hicks, Bruce L.; Whittenbury, Clive G.

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