- The Protection of Our Native Birds
- Comparative Cytological Studies With Especial Regard to the Morphology of the Nucleolus
- A History of the Insurance Company of North America of Philadelphia: The Oldest Fire and Marine Insurance Company in America. Began Business as an Association in 1792. Incorporated 1794
- The Analysis of Racial Descent in Animals
- A history of the University of Pennsylvania, from its foundation to A.D. 1770; including biographical sketches of the trustees, faculty, the first alumni and others




















