University of Illinois Urbana-Champaign

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Showing 61–90 of 2,837 items
Thumbnail for Gas purification in the medium-size gas plants of Illinois.
Gas purification in the medium-size gas plants of Illinois.
Dunkley, William Albert; Barnes, Clifton E.

Thumbnail for Availability of the Colchester coal for mining in northern and western Illinois
Availability of the Colchester coal for mining in northern and western Illinois
Korose, Christopher P.; Elrick, Scott D.; Jacobson, R.J.

Thumbnail for Washability tests of Illinois coals
Washability tests of Illinois coals
Callen, Alfred Copeland; Mitchell, David Ray

Thumbnail for Development of paleobotany in the Illinois Basin
Development of paleobotany in the Illinois Basin
Phillips, Tom Lee; Pfefferkorn, Hermann W.; Peppers, Russel A.

Thumbnail for Research needs of Illinois' coal industry; a symposium relating to recovery, preparation, marketing practice, utilization, and basic research presented at quarter centennial celebration of Illinois State Geological Survey, April 30, 1930.
Research needs of Illinois' coal industry; a symposium relating to recovery, preparation, marketing practice, utilization, and basic research presented at quarter centennial celebration of Illinois State Geological Survey, April 30, 1930.
Ketchum, Milo Smith; Garcia, John Adrian; Holbrook, Elmer Allen; Willard, Arthur Cutts; Severns, William Harrison; Parr, Samuel Wilson; Thiessen, Rhinehardt; Honnold, Fred C.

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

Thumbnail for Contributions to the study of coal
Contributions to the study of coal
Illinois State Geological Survey; Thiessen, Gilbert; Cady, Gilbert H.; Rees, Orin Wainwright; Reed, Frank Hynes

Thumbnail for Investigation of warm-air furnaces and heating systems, part III
Investigation of warm-air furnaces and heating systems, part III
Willard, Arthur Cutts; Kratz, Alonzo Plumsted; Day, Vincent Stephen