Metaphysics

God-Man

The Distinction between Mind and Its Objects

Philosophy in the Last Forty Years

Evolution of Life and Form

The Philosophy of Evolution

An Enquiry Concerning Human Understanding

The Meaning of Evolution

Reincarnation: A Study in Human Evolution

History of Modern Philosophy

Facts of Consciousness

Lectures on the Proofs of the Existence of God

The Three Critiques

Absurdities of Immaterialism Or, A Reply to T. W. P. Taylder's Pamphlet, Entitled, “The Materialism of the Mormons or Latter-Day Saints, Examined and Exposed.”

Ethics

Gospel Philosophy

Eureka: A Prose Poem

Mind and Motion and Monism

Man or Matter

Chance, Love, and Logic

Monism as Connecting Religion and Science