- EbookMen of the Old Stone Age Their Environment, Life and ArtHenry Fairfield Osborn
- EbookDinosaurs With Special Reference to the American Museum CollectionsBarnum Brown
- EbookPalæontological Report of the Princeton Scientific Expedition of 1877Henry Fairfield Osborn
- EbookMen of the Old Stone Age Their Environment, Life and ArtHenry Fairfield Osborn
- EbookPalæontological Report of the Princeton Scientific Expedition of 1877Henry Fairfield Osborn
- EbookMen of the Old Stone AgeHenry Fairfield Osborn