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1.
Lead and zinc deposits of northwestern Illinois, by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Urbana, State geological survey, University of Illinois, 1914
Availability: No items available.

2.
Geological criteria for determin the structural position of sedimentary beds ... by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: [n. p.] 1916
Availability: No items available.

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