University of Illinois Urbana-Champaign

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Showing 7141–7170 of 7,597 items
Thumbnail for Paving brick and paving brick clays of Illinois.
Paving brick and paving brick clays of Illinois.
Rolfe, Charles Wesley; Purdy, Ross C.; Talbot, Arthur Newell; Baker, Ira Osborn

Thumbnail for Driftless area assessment
Driftless area assessment
Submitter: Steven Mccauley

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