University of Illinois Urbana-Champaign

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Showing 151–180 of 788 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 Annual register. 1905-1906
Annual register. 1905-1906
University of Illinois at Urbana-Champaign

Thumbnail for Sand and gravel resources of Mason County, Illinois
Sand and gravel resources of Mason County, Illinois
Labotka, Theodore C.; Hester, Norman C.

Thumbnail for Annual register. 1929-30
Annual register. 1929-30
University of Illinois at Urbana-Champaign

Thumbnail for Annual register. 1930-31
Annual register. 1930-31
University of Illinois at Urbana-Champaign