- Sound Mind
- Observations on Insanity: With Practical Remarks on the Disease and an Account of the Morbid Appearances on Dissection
- Observations on madness and melancholy (Classics in psychiatry)
- A Letter to the Right Honorable the Lord Chancellor, on the Nature and Interpretation of Unsoundness of Mind, and Imbecility of Intellect
- On the Nature of Thought : Or, The act of thinking and its connexion with a perspicuous sentence