Letters, by the author of Common sense : First, to the Earl of Shelburne, now Marquis of Lansdowne, on the subject of American independence. Second, to Sir Guy Carlton, now Lord Dorchester, on the murder of Captain Huddy. Third, to the authors of "The Republican," a French paper; tendering his services in support of the Republican system. Fourth, to the Abbe Syeyes, a member of the French National Assembly; accepting the Abbe's challenge on the subject of government, by offering to defend the republican against the monarchical system.