Concerning the development of big, weight-carrying biplanes, the French military authorities are now definitely credited with the intention of using such machines, in war-time, for destructive purposes. No official announcement of policy, in this connection, has been made; but the statement is current, and finds general acceptance that, in the case of a war with Germany, large biplanes would be used by France along the German frontier, for the purpose of dropping bombs upon fortifications, and frustrating any punitive flights of German airships. In this direction, and possibly also for transport purposes, the future of the weight-carrying biplane seems certainly to lie. Those now available for military purposes are designed to possess a maximum of lifting power, with reasonable speed, and a large measure of portability. They possess strong, workmanlike features, which specially suit them for rough service. From the point of view of an observer, in obtaining a maximum of unimpeded vision for his work, the military biplane offers distinct advantages. But the relative value of biplanes and monoplanes in war-time, can only be established, definitely, by the carefully-noted experiences of a campaign. III. Healthy position of the French industry—What England has lacked—Danger of neglecting home builders. The competitive element in France, so far as aeroplane construction is concerned, has been fully aroused. There is, indeed, every encouragement for a maker to invest his money in the production of a machine. He knows that, if he achieves a result that is satisfactory from the military point of view, he will receive definite Government support, in the shape of an order for one or more machines. This, of course, makes all the difference between development and stagnation. From the point of view of the military authorities, the encouragement of construction has another important effect, also. It directs building into the channel which they desire it to follow—that is to say, towards the steady improvement of machines suitable for purposes of war. By this process of placing every facility in the way of her home manufacturers, France ensures the maintenance of her lead, so far as military aeroplanes are concerned. The most talented men as designers, and the most practical men as builders, are always busy in France, seeking to improve the machines which are at present in use. An unfortunate position, so far as England is concerned, was revealed in connection with the preliminary announcement of the intention of the War Office to hold a military aeroplane contest. Starved for lack of any official recognition or support, representatives of the British industry pleaded for conditional orders for machines.