- Living Questions of the Age
- The Doctrine Of The Holy Spirit: Or, Philosophy Of The Divine Operation In The Redemption Of Man
- Poetry of Reason and Conscience. Immortality and Worth of the Soul: Ten Scenes in the Life of a Lady of Fashion; And Miscellaneous Pieces
- 1695-1895: Bicentennial Anniversary Of The Friends' Meeting House At Merion, Pennsylvania (1895)
- Philosophy of skepticism and ultraism