University of Illinois Urbana-Champaign

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Showing 571–600 of 799 items
Thumbnail for Ground-water development in three areas of Central Illinois
Ground-water development in three areas of Central Illinois
Walker, William Henry; Walton, William Clarence

Thumbnail for Illinois River Bluffs Area Assessment
Illinois River Bluffs Area Assessment
Illinois Department of Natural Resources

Thumbnail for Petrographic and coking characteristics of coal : laboratory study of Illinois coal seams nos. 5 and 6
Petrographic and coking characteristics of coal : laboratory study of Illinois coal seams nos. 5 and 6
Marshall, Charles Edward; Harrison, John A.; Simon, Jack A.; Parker, Margaret A.

Thumbnail for Illinois Technograph v. 045 (1930-1931)
Illinois Technograph v. 045 (1930-1931)
Submitter: Timothy Donohue