Laurens Perseus Hickok (1798-1888)
Rational Psychology; or, The Subjective Idea and the Objective Law of All Intelligence (1848, 1854)
A System of Moral Science (1853, 1858)
Rational Cosmology: or, The Eternal Principles and the Necessary Laws of the Universe (1858)
Creator and Creation; or, The Knowledge in the Reason of God and His Work (1872)
Humanity Immortal; or, Man Tried, Fallen, and Redeemed (1872, 1876)