- "'Tis Sixty Years Since": Address of Charles Francis Adams; Founders' Day, January 16, 1913
- A Pluralistic Universe: Hibbert Lectures at Manchester College on the Present Situation in Philosophy
- Littérature et Philosophie mêlées
- Modern French Philosophy: a Study of the Development Since Comte
- Some Turns of Thought in Modern Philosophy: Five Essays
- Winds Of Doctrine: Studies in Contemporary Opinion