University of Illinois Urbana-Champaign

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Showing 3331–3360 of 11,109 items
Thumbnail for Short papers on geologic subjects.
Short papers on geologic subjects.
Foster, John Webster; Lamar, John Everts; Reynolds, R.R.; Willman, Harold Bowen; Templeton, J.S.; Shrode, Raymond S.; Raasch, Gilbert Oscar

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