University of Illinois Urbana-Champaign

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Showing 31–60 of 103 items
Thumbnail for Some unusual natural areas in Illinois
Some unusual natural areas in Illinois
Evers, Robert August; Page, Lawrence M.

Thumbnail for North American paleozoic Chitinozoa,
North American paleozoic Chitinozoa,
Collinson, Charles William; Schwalb, Howard R.

Thumbnail for Ground-Water Resources of DuPage County, Illinois
Ground-Water Resources of DuPage County, Illinois
Zeizel, Arthur J.; Walton, William Clarence; Sasman, Robert T.; Prickett, Thomas A.

Thumbnail for Groundwater geology of the East St. Louis area, Illinois,
Groundwater geology of the East St. Louis area, Illinois,
Bergstrom, Robert Edward; Walker, Theodore R.

Thumbnail for Oxidation of coal.
Oxidation of coal.
Yohe, Gail Robert