Rockwell, Charles. Sketches of Foreign Travel and Life at Sea; including a Cruise on Board a Man-of-War, as also a Visit to Spain, Portugal, the South of France, Italy, Sicily, Malta, the Ionian Islands, Continental Greece, Liberia, and Brazil; and a Treatise on the Navy of the United States ... Boston: Tappan and Dennet; New York: D. Appleton and Wiley & Putnam; Philadelphia: Carey & Hart; London: Wiley & Putnam, 1842. 2 vols. in 1.