University of Illinois Urbana-Champaign

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Showing 391–420 of 1,711 items
Thumbnail for Silica brick from northern Illinois silica sand
Silica brick from northern Illinois silica sand
Deadmore, Daniel L.; Machin, James Stewart

Thumbnail for The weathering of coal
The weathering of coal
Parr, Samuel Wilson; Hamilton, Nain Delf

Thumbnail for Illinois mineral industry in 1942
Illinois mineral industry in 1942
Voskuil, Walter Henry; Stevens, Douglas F.

Thumbnail for Technograph. 34 (1921 - 1922)
Technograph. 34 (1921 - 1922)
Submitter: Timothy Donohue

Thumbnail for Landscaping your home
Landscaping your home
Nelson, William R.

Thumbnail for Potash shales of Illinois
Potash shales of Illinois
Parr, Samuel Wilson; Krey, Frank; Austin, Miner Manly; Stewart, Robert