Harper, E. H. 1880-1916 Aerial locomotion / by E. H. Harper and Allan Ferguson ; with an introduction by G. H. Bryan - Cambridge : The University Press, 1911 - xii, 164 p. : incl. front., ill., diagrs. ; 17 cm. - The Cambridge manuals of science and literature . Title within ornamental border Includes index Subjects--Topical Terms: Aeronautics Dewey Class. No.: 629.1323