University of Illinois Urbana-Champaign

Academic Unit
Collection
Author(s)
Keyword(s)
Type of Resource
Showing 4831–4860 of 14,972 items
Thumbnail for Geology and mineral resources of the Marseilles, Ottawa, and Streator quadrangles,
Geology and mineral resources of the Marseilles, Ottawa, and Streator quadrangles,
Willman, Harold Bowen; Payne, James Norman; Voskuil, Walter Henry

Thumbnail for Cretaceous deposits and the Illinoian glacial boundary in western Illinois
Cretaceous deposits and the Illinoian glacial boundary in western Illinois
Frye, John Chapman; Willman, Harold Bowen; Glass, Herbert David