David Hume
Evolution and man's place in nature
Handbook of moral philosophy
On Teaching, Its Ends and Means
On teaching: its ends and means
Philosophy of the infinite: a treatise on man's knowledge of the Infinite Being, in answer to Sir William Hamilton and Dr. Mansel
The philosophy of the infinite; with special reference to the theories of Sir William Hamilton and M. Cousin
The relations of mind and brain
The relations of science and religion. The Morse lecture, 1880, connected with the Union Theological Seminary, New York
Vocabulary of philosophy and student's book of reference: on the basis of Fleming's vocabulary