University of Illinois Urbana-Champaign

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Showing 4741–4770 of 5,973 items
Thumbnail for Thorn Creek area assessment
Thorn Creek area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis; Illinois Department of Natural Resources. State Geological Survey Division

Thumbnail for Impact on railway bridges
Impact on railway bridges
Looney, Charles Thomas George

Thumbnail for Year-book for 1907.
Year-book for 1907.
Illinois State Geological Survey