The philosophy of mathematics

Trial of the Officers and Crew of the Privateer Savannah, on the Charge of Piracy, in the United States Circuit Court for the Southern District of New York

The Romance of Mathematics Being the Original Researches of a Lady Professor of Girtham College in Polemical Science, with some Account of the Social Properties of a Conic; Equations to Brain Waves; Social Forces; and the Laws of Political Motion.

Oriental Religions and Christianity A Course of Lectures Delivered on the Ely Foundation Before the Students of Union Theological Seminary, New York, 1891