University of Illinois Urbana-Champaign

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Showing 6211–6240 of 11,023 items
Thumbnail for Year-book for 1908
Year-book for 1908
Illinois State Geological Survey

Thumbnail for Availability of the Springfield Coal for mining in Illinois
Availability of the Springfield Coal for mining in Illinois
Treworgy, Colin G.; Korose, Christopher P.; Chenoweth, Cheri A.; North, Daniel L.

Thumbnail for Portland-cement resources of Illinois
Portland-cement resources of Illinois
Bleininger, Albert; Lines, Edwin Fuller; Layman, F.E.