University of Illinois Urbana-Champaign

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Showing 1861–1890 of 12,714 items
Thumbnail for The abundance of zinc and cadmium in sphalerite-bearing coals in Illinois
The abundance of zinc and cadmium in sphalerite-bearing coals in Illinois
Cobb, James C.; Steele, John D.; Treworgy, Colin G.; Ashby, Jim F.

Thumbnail for Gable End Ventilation
Gable End Ventilation
Lendrum, James T.; Kapple, William H.