University of Illinois Urbana-Champaign

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Showing 91–120 of 13,703 items
Thumbnail for The geology of Hardin County, and the adjoining part of Pope County.
The geology of Hardin County, and the adjoining part of Pope County.
Weller, Stuart; Butts, Charles; Currier, Louis W.; Salisbury, Rollin D.

Thumbnail for Silurian geology of the Des Plaines River Valley, northeastern Illinois
Silurian geology of the Des Plaines River Valley, northeastern Illinois
Mikulic, Donald G.; Sargent, Michael L.; Norby, Rodney D.; Kolata, Dennis R.

Thumbnail for Directory of Illinois mineral producers, and maps of extraction sites
Directory of Illinois mineral producers, and maps of extraction sites
Miao, Xiaodong; Lasemi, Zakaria; Mikulic, Donald G.; Falter, Michael

Thumbnail for Illinois Technograph v. 005 (1890-1891)
Illinois Technograph v. 005 (1890-1891)
Submitter: Timothy Donohue

Thumbnail for History of Illinois mineral industries
History of Illinois mineral industries
Risser, Hubert E.; Major, Robert L.

Thumbnail for Oil investigations in Illinois in 1916, under direction of Fred H. Kay.
Oil investigations in Illinois in 1916, under direction of Fred H. Kay.
Illinois State Geological Survey; Kay, Fred Hall; Brokaw, Albert Dudley; St. Clair, Stuart; Butts, Charles

Thumbnail for The classic Silurian reefs of the Chicago area
The classic Silurian reefs of the Chicago area
Mikulic, Donald G.; Kluessendorf, Joanne

Thumbnail for Year-book for 1908
Year-book for 1908
Illinois State Geological Survey

Thumbnail for Year-book for 1906
Year-book for 1906
Illinois State Geological Survey

Thumbnail for Recent paving practice in Chicago
Recent paving practice in Chicago
Schafmayer, Albert James