Copyright and patents, or, Property in thought, being an investigation of the principles of legal science applicable to property in thought, with their bearing on the case of Jefferys v. Boosey, recently decided by the House of Lords [electronic resource] : in a letter to the Right Hon. Lord Brougham and Vaux : to which is appended a corrected report of the judgments delivered by the Lord Chancellor, Lord Brougham, and Lord St. Leonards / / by Montague R. Leverson