University of Illinois Urbana-Champaign

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Showing 8041–8070 of 15,447 items
Thumbnail for The mineral content of Illinois waters
The mineral content of Illinois waters
Bartow, Edward; Udden, Johan August; Parr, Samuel Wilson; Palmer, George Thomas

Thumbnail for Edwards County soils / 46
Edwards County soils / 46
Norton, Ethan Arlo

Thumbnail for Yields of deep sandstone wells in Northern Illinois
Yields of deep sandstone wells in Northern Illinois
Walton, William Clarence; Csallany, Sandor