- Travels in inner space: One man's exploration of encounter groups, meditation, and altered states of consciousness
- Visions of reality in oil paintings
- The Island of St. Marguerite, an opera, in two acts, and first performed at the Theatre Royal, Drury Lane, on Friday, November 13, 1789. Fourth edition.
- Observations on the land revenue of the Crown. By the Hon. John St. John. The second edition.
- Mary, Queen of Scots, a tragedy; as performed at the Theatre Royal, Drury Lane. By the Honourable John St. John. Third edition.