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Publisher
- Geological Survey (U.S.)12
- Geological Survey Division (Urbana, Ill.)7
- (Ferd. Mayer & Co. (New York))1
- A.S. Barnes & Co. (New York)1
- Dyer & Pasmore (Milwaukee, Wisconsin)1
- J. Bien (New York)1
- J.B. Lippincott & Co. (Philadelphia)1
- Rufus Blanchard (Chicago, Ill.)1
- State Geological Survey (Urbana, Ill.)1
- [Washington, D.C. : s.n.]1