It is estimated that the average cost to France of training each pilot is five thousand dollars. Most of the accidents, however, are caused by carelessness, stupidity, or overconfidence. The day I joined the school two of the members lost their lives in a curious accident. They were flying at a great height, but thoughtlessly allowed their machines to approach too closely. Before they could change direction there was a crash, and both came tumbling to earth. When two aeroplanes come too near to each other the suction of their propellers pulls them together and they become uncontrollable. That is what happened to these two unfortunate "élèves." The officer in charge of the school explained at length just how this accident happened. We were cautioned against overlooking the fact that the speed of an aeroplane is always spoken of in reference to the body of the air in which the machine is moving. Thus an aeroplane travelling eighty miles an hour with a twenty-mile breeze is travelling at a speed of a hundred miles an hour in reference to the ground. The two machines at the time of the accident were flying east and west, but, while both were travelling at the same speed with reference to the ground, the plane moving in the direction of the wind was making about ninety miles an hour, while the other was covering barely fifty miles at the same time. The speed at which they were approaching one another was, however, approximately one hundred and forty miles an hour, or more than two miles a minute. What, under ordinary circumstances, would have been a safe distance became a danger zone, and before either pilot realized his mistake it was too late to steer clear. The scene of the accident lay over a part of the field where Wright’s Barn stands. This little red building was the workshop of the Wright brothers when they astonished the world by their first aerial flights. To-day that little red barn stands as a monument to American stupidity, for when we allowed the Wrights to go abroad to perfect their ideas instead of aiding them to carry on their work at home, we lost a golden opportunity. Now the United States, which gave to the world the first practical aeroplane, is the least advanced in this all-important science.