University of Illinois Urbana-Champaign

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Showing 121–150 of 281 items
Thumbnail for Guide to the structure and paleozoic stratigraphy along the Lincoln fold in western Illinois
Guide to the structure and paleozoic stratigraphy along the Lincoln fold in western Illinois
Collinson, Charles William; Swann, David Henry; Willman, Harold Bowen

Thumbnail for The Platteville and Galena groups in northern Illinois
The Platteville and Galena groups in northern Illinois
Willman, Harold Bowen; Kolata, Dennis R.

Thumbnail for Guide to the papers in the John Hunter Walker collection, 1911-1953
Guide to the papers in the John Hunter Walker collection, 1911-1953
Carlson, Douglas W.; Pausch, Lois M.; Robertson, Margaret W.