On the Nature of Thought / or, The act of thinking and its connexion with a perspicuous sentence

Sound Mind / or, Contributions to the natural history and physiology / of the human intellect

A Letter to the Right Honorable the Lord Chancellor, on the Nature and Interpretation of Unsoundness of Mind, and Imbecility of Intellect

A Letter to the Right Honorable the Lord Chancellor, on the Nature and Interpretation of Unsoundness of Mind, and Imbecility of Intellect

Observations on Insanity

The Paper Currency of England Dispassionately Considered