- Fort Ancient: The Great Prehistoric Earthwork of Warren County, Ohio - Primary Source Edition
- Exploration of the Etowah Site in Georgia: The Etowah Papers (Southeastern Classics in Archaeology, Anthropology, and History)
- The Hopewell Mound Group of Ohio
- Hematite Implements of the United States, Together with Chemical Analysis of Various Hevatites Volume 4
- Our National Problem; the sad Condition of the Oklahoma Indians