- The Columbian University: Notes On Its Relations To The City Of Washington Considered As The Seat Of A National University (1889)
- The Bering Sea Arbitration; Or, Pelagic Sealing Juridically Considered According to a Particular Analogy of Municipal Law
- Slavery In The Territories
- The Science of Universal History: Its Method and Its Relation to the Physical Sciences
- An Address Delivered Before the New York Historical Society