University of Illinois Urbana-Champaign

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Showing 241–270 of 957 items
Thumbnail for Mines in the Illinois portion of the Illinois-Kentucky Fluorspar District
Mines in the Illinois portion of the Illinois-Kentucky Fluorspar District
Denny, F. Brett; Nelson, W. John; Breeden, Jeremy R.; Lillie, Ross C.

Thumbnail for Mineralogical and chemical composition of inorganic matter from marketed Illinois coals
Mineralogical and chemical composition of inorganic matter from marketed Illinois coals
Demir, Ilham; Hughes, Randall E.; DeMaris, Philip J.; Ruch, Rodney R.