- A Letter to Viscount Palmerston, K.G., Prime Minister of England, on American Slavery
- The Four Civilizations of the World. an Historical Retrospect
- The Reminiscences of an Idler
- Trial of Wikoff, Vannoud, and Cavallari, for a Conspiracy to Effect a Forced Marriage Between Miss Gamble, and One of the Accused: Before the High Court of Genoa. February 9-10, 1852
- Memoir Of Ginevra Guerrabella...