University of Illinois Urbana-Champaign

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Showing 31–60 of 2,261 items
Thumbnail for Development of paleobotany in the Illinois Basin
Development of paleobotany in the Illinois Basin
Phillips, Tom Lee; Pfefferkorn, Hermann W.; Peppers, Russel A.

Thumbnail for Public groundwater supplies in Pike county
Public groundwater supplies in Pike county
Woller, Dorothy M.; Kunz, Karen L.; Sanderson, Ellis W.

Thumbnail for Letters
Letters
Submitter: Howard Ding

Thumbnail for Illinois building stones,
Illinois building stones,
Lamar, John Everts; Willman, Harold Bowen

Thumbnail for 43rd annual Tri-state Geological Field Conference, October 5-7, 1979 : Geology of Western Illinois
43rd annual Tri-state Geological Field Conference, October 5-7, 1979 : Geology of Western Illinois
Tri-State Geological Field Conference (43rd : 1979 : Grafton, Ill.)