University of Illinois Urbana-Champaign

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Showing 91–120 of 319 items
Thumbnail for Bibliography and index of Illinois geology through 1965
Bibliography and index of Illinois geology through 1965
William, H.B.; Simon, Jack A.; Lynch, Betty M.; Langenheim, Virginia A.

Thumbnail for Personnel
Personnel
Submitter: Howard Ding

Thumbnail for Additional Content
Additional Content
Submitter: Howard Ding

Thumbnail for Year-book for 1909
Year-book for 1909
Illinois State Geological Survey

Thumbnail for News from the Field; Personnel
News from the Field; Personnel
Submitter: Howard Ding