(Aero Club of America.) Navigating the Air, A Scientific Statement of the Progress of Aeronautical Science up to the Present Time. New York, Doubleday, 1907. 259pp, photo illus, 6x8", good condition, ink inscription inside front cover, 23 chapters by various famous authors/aviation figures, about 60 figures. Of interest to me was a chapter by Lowe on the flight of his balloon Enterprise in 1861.