- A treatise on the art of decyphering, and of writing in cypher. With an harmonic alphabet.
- The speaking figure, and the automaton chess-player, exposed and detected.
- A Year's Journey Through France and Part of Spain, 1777
- Lives of Gainsborough
- A letter to the Earl of Coventry; by Philip Thicknesse. Containing some extraordinary letters of the noble lord's to the author, written in 1780 and ... extraordinary note of the noble lord's, 1785





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