University of Illinois Urbana-Champaign

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Showing 61–90 of 4,786 items
Thumbnail for Current developments in rock, rock products, and industrial minerals.
Current developments in rock, rock products, and industrial minerals.
Mineral Industries Conference of Illinois (5th : 1938 : Urbana)

Thumbnail for Technograph. 34 (1921 - 1922)
Technograph. 34 (1921 - 1922)
Submitter: Timothy Donohue

Thumbnail for Geology and mineral resources of the Marseilles, Ottawa, and Streator Quadrangles - Plates
Geology and mineral resources of the Marseilles, Ottawa, and Streator Quadrangles - Plates
Willman, Harold Bowen; Payne, James Norman; Voskuil, Walter Henry