A true account of the expedition of the British fleet to Sicily, in the years 1718, 1719, and 1720 : Under the command of Sir George Byng, bart. (afterwards Viscount Torrington) admiral and commander in chief of His Majesty's fleet; and His Majesty's commissary and plenipotentiary to the Princes and states of Italy. Collected from Sir George's manuscripts, and other original papers. Wherein are particulariz'd the secret motives of every action.