Classic very early U.S. aviation weekly, Vol VIII, No. 20. 14pp, illus, cover photo and article focusing on "American Aero Development Along German Military Lines". Interior article and photos: "Powers Rely More than Ever on Aircraft" and "The Art of Piloting a Flying Boat". These are always very fragile; this one has a loose cover and edge chipping/tears. A seldom seen, rare periodical.