New and Original Theories of the Great Physical Forces

Free Trade with India An Enquiry into the True State of the Question at Issue Between His Majesty's Ministers, the Honorable the East India Company, and the Public at Large, on the Justice and Policy of a Free Trade to India

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.

A Lecture on Physical Development, and its Relations to Mental and Spiritual Development, delivered before the American Institute of Instruction, at their Twenty-Ninth Annual Meeting, in Norwich, Conn., August 20, 1858