History of the American Field Service in France, "Friends of France", told by its members, 1914-1917. Boston, Houghton Mifflin, 1920. Vol I 518 pages, Vol II 536 pages, Vol III 580 pages, photo illus, blue cloth hardcover, 8vo (6x9"). Of course, this was the pathway of many aviators who first started in the ambulance service, especially those of the Lafayette Escadrille. Rosters in the back of Vol III show 255 entered the U.S. Army Aviation Service, Naval Aviation and the Balloon Corps. Vol I and III very good, Vol II fair with small infrequent stains.