As for the third point, it will cost no more to keep an aeroplane than to own an automobile. The initial cost is the greatest. Of course, there are the same qualifications that obtain with the automobile the cost of up-keep will depend upon whether you have many and serious breakages and whether the owner looks after his own machine. Should the owner prefer to hire a competent mechanic, his wages will be about the same as those of a first-class chauffeur. As for smash-ups, the expense of these would be considerable, but not as much as it would be if an automobile should have an accident. For contrary to the ideas of a good many of the uninitiated, it is quite possible to injure an aeroplane, and quite seriously, too, without in the least hurting the aviator. In this respect the hydroaeroplane is of course safest of all; I am reminded of a recent accident at Antibes, near Nice, France, where Mr. Hugh Robinson, who was demonstrating a Curtiss hydroaeroplane, suffered a badly wrecked machine without the least injury. Forced to make a quick landing, he chose, in order to avoid a flock of motor boats filled with spectators, to dive directly into the water. The shock threw him out of the machine and he swam about unconcernedly until a motor boat picked him up. Of course a similar sharp contact with the solid ground would have wrecked the aviator to some extent as well, but it is possible to put a hydroaeroplane completely out of commission, necessitating expensive repairs, and not be more than shaken up. Really there is much less danger of smash-ups than the outsider would think, provided the aviator is a careful driver. The main thing is to have great judgment in choosing a time for flights. An inexperienced aviator should never take up his machine in an unsteady wind of greater velocity than ten miles an hour. The less wind the better, for the beginner. The dangerous wind is the puffy, gusty sort, and this should be avoided by any but the most experienced aviator. It must be remembered, however, that it is the variations and not the velocity of the wind which causes trouble. Another item of expense to be taken into consideration is the transportation of an aeroplane from one place to another, for it does not always go on its own wings. This, however, is neither difficult nor expensive. I am able, for example, to take down my machines and pack them in specially constructed boxes so that they take up but a comparatively small space for shipment. The setting up process is not difficult, nor even complicated, and can be performed by any one having had the proper instructional term at a first-class aviation school. An illustration shows an aeroplane, in its case, carried on an automobile.