University of Illinois Urbana-Champaign

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Showing 31–60 of 1,287 items
Thumbnail for Current developments in coal
Current developments in coal
Mineral Industries Conference of Illinois (5th : 1938 : Urbana)

Thumbnail for Geology of the fluorspar deposits of Illinois
Geology of the fluorspar deposits of Illinois
Weller, James Marvin; Grogan, Robert Mann; Tippie, Frank Emerson, joint author

Thumbnail for Illinois mineral industry in 1942
Illinois mineral industry in 1942
Voskuil, Walter Henry; Stevens, Douglas F.

Thumbnail for Photographic history of coal mining practices in Illinois
Photographic history of coal mining practices in Illinois
Chenoweth, Cheri A.; Myers, Alan R.; Obrad, Jennifer M.

Thumbnail for Coke from Illinois coals Illinois
Coke from Illinois coals Illinois
Thiessen, Gilbert; Voskuil, Walter Henry; Grotts, Paul E.

Thumbnail for Illinois mineral industry in 1944
Illinois mineral industry in 1944
Voskuil, Walter Henry; Stevens, Douglas F.

Thumbnail for Possible recovery of coal from waste at Illinois mines
Possible recovery of coal from waste at Illinois mines
Smith, Cloyde Moffett; Mitchell, David Ray

Thumbnail for Hardenability of carburizing steels
Hardenability of carburizing steels
Bruckner, Walter Herbert