The author wishes to acknowledge her indebtedness to Mr. Glenn H. Curtiss and Mr. Wilbur Wright for courtesies extended during the preparation of this manuscript. These skillful and clever aviators, pioneers to whom the Art of Flying owes a colossal debt, do not laugh at any suggestion concerning the future of the aëroplane, for they recognize the fact that the discoveries and inventions of the next year may surpass all that have gone before.