University of Illinois Urbana-Champaign

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Showing 7321–7350 of 26,044 items
Thumbnail for Guide to rocks and minerals of Illinois.
Guide to rocks and minerals of Illinois.
Illinois State Geological Survey

Thumbnail for Hydrocarbon source potential and organic geochemical nature of source rocks and crude oils in the Illinois Basin
Hydrocarbon source potential and organic geochemical nature of source rocks and crude oils in the Illinois Basin
Chou, Mei-In Melissa; Dickerson, Donald R.; Chou, Sheng-Fu J.; Sargent, Michael L.

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.