University of Illinois Urbana-Champaign

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Showing 6991–7020 of 8,145 items
Thumbnail for Public ground-water supplies in DuPage county
Public ground-water supplies in DuPage county
Woller, Dorothy M.; Sanderson, Ellis W.; Sargent, Michael L.

Thumbnail for Technograph. 42-44 (1929 - 1930)
Technograph. 42-44 (1929 - 1930)
Submitter: William Ingram

Thumbnail for The mineral content of Illinois waters
The mineral content of Illinois waters
Bartow, Edward; Parr, Samuel Wilson; Palmer, George Thomas; Udden, Johan August