- Early letters of Jane Welsh Carlyle
- Darwinism and Politics
- The Principles of State Interference: Four Essays On the Political Philosophy of Mr. Herbert Spencer, J. S. Mill, and T. H. Green; Volume 28
- The Moral Function of the State: A Paper Read Before the Oxford Branch of the Guild of St. Matthew, on May 17th, 1887
- Natural Rights: A Criticism of Some Political and Ethical Conceptions