As a matter of fact, it has already been realised that several types of bomb are likely to be employed in aerial warfare, according to the targets which are aimed at. In an attack upon supply stores, for example, an incendiary bomb may be used, so that the contents may be set on fire, and destroyed; and the same kind of missile will probably be dropped upon dockyards, arsenals, and magazines. For the destruction of bridges, for the attack upon troops on the march, and for the bombarding of encampments, some special form of explosive shell may be used. Definite choice of such a shell has not yet been made; but here, again, experimental work has already been commenced abroad. In England, realising the importance of this question. Sir Hiram Maxim has recently been engaging himself with the production of a 100-lb. aerial projectile likely to create a maximum amount of damage when striking the ground. Aerial bombardment, if systematically carried out, will certainly add another terror to modern war; and the question is sometimes asked whether nations have a right, according to the agreements of the Hague Convention, to employ such a means of attack. The position, so far as the last convention was concerned, was that certain nations, notably France and Germany, did not become signatories to a rule, proposing that aerial bomb-dropping should be disallowed. Such a practical airman as M. Vedrines is enthusiastic regarding the offensive powers of a modern aeroplane, when skilfully handled. His view is that a large and well-organised squadron of weight-carrying machines should be able to render almost useless a fleet of ships. Naval men would, no doubt, regard such a statement as being an exaggeration. The aim of an aeroplanist, when directing his bomb against a moving ship, would frequently be inaccurate, they claim; and they also affirm that an aeroplane would not be able to carry bombs sufficiently large and deadly to do much damage, even if one did, occasionally, reach its mark. But here the argument is based upon the possible use of one machine, and not of a fleet. One aeroplane, dropping a few bombs on a fleet of ships, would naturally produce an insignificant result. But what of the results achieved by several hundred, and perhaps of a thousand? In such a case, there would not be one bomb to contend against, but a volley of missiles. M. Vedrines, whose opinion was quoted above, is a believer in the speed of the aeroplane, as aiding its powers of attack. In regard to a possible war between France and Germany, he has declared that, within an hour of the declaration of such a war, a corps of French airmen could be over the frontier, attacking, with their bombs, all great railway junctions and forts on German soil.