Report of the Commissioner of Patents, for the Year 1849. Part I. -- Arts and Manufactures [All Published in this Edition]

New York: J.S. Redfield, 1850. First Edition. Octavo (22.5cm.); removed; 102,[10](ads)pp.; text illus. throughout, publisher's advertisements in rear printed wtihin decorative border. Some foxing throughout, else Very Good and sound, albeit lacking wrappers. Much of the contents are devoted to an article on the propulsion of steamers, with detailed and generously illustrated observations on animal propellers, including that of fish, marine mammals, birds, and bats. Uncommon.