University of Illinois Urbana-Champaign

Academic Unit
Collection
Author(s)
Keyword(s)
Type of Resource
Showing 4111–4140 of 24,254 items
Thumbnail for Correlation problems in the new Illinois Basin Fields.
Correlation problems in the new Illinois Basin Fields.
Illinois State Geological Survey; Workman, Lewis E.; Bell, Alfred Hannam

Thumbnail for The structure diorama
The structure diorama
Squires, Frederick, b. 1879.