- The Life and Works of Goethe
- Physiology of Common Life
- Comte's Philosophy of the Sciences
- The Lights o' London and Other Victorian Plays: The Inchape Bell; Did You Ever Send Your Wife to Camberwell?; The Game of Speculation; The Lights o' London; The Middleman (Oxford Drama Library)
- The Biographical History of Philosophy From Its Origin in Greece Down to the Present Day; Volume 1