University of Illinois Urbana-Champaign

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Showing 4261–4290 of 14,365 items
Thumbnail for Heat drying coals at moderate temperatures before coking
Heat drying coals at moderate temperatures before coking
Jackman, Harold Wesley; Helfinstine, Roy John

Thumbnail for Mackinaw River area assessment.
Mackinaw River area assessment.
Illinois Department of Natural Resources

Thumbnail for Museum of Natural History. v.2, no.2 (1992) - v.4, no.1 (1996)
Museum of Natural History. v.2, no.2 (1992) - v.4, no.1 (1996)
Museum of Natural History. College of Liberal Arts and Sciences. University of Illinois at Urbana-Champaign

Thumbnail for Geology for planning in McHenry County
Geology for planning in McHenry County
Hackett, James Edward; McComas, Murray R.