University of Illinois Urbana-Champaign

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Showing 2971–3000 of 3,771 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 Locating educational information in published sources
Locating educational information in published sources
Monroe, Walter Scott; Hamilton, Thomas Tristam; Smith, Vivian Thomas

Thumbnail for Wilhelm Heinse's Dualism
Wilhelm Heinse's Dualism
Klinger, Uwe Roland

Thumbnail for Year-book for 1908
Year-book for 1908
Illinois State Geological Survey