“Before considering the successes obtained by these commanders in the rather rude fashion of warfare which they were forced to adopt, it must be noted, of course, that even on their side there were also scientific resources of a kind; and an effective if eccentric kind. The scientific genius of Bellew Blair had equipped his side with many secret processes affecting aviation and aeronautics, and it is the peculiarity of this extraordinary man that his secret processes really remained for a considerable time secret. For he had not told them to anybody with any intention of making any money out of them. This quixotic and visionary behaviour contrasted sharply with the shrewd good sense of the great business men who knew that publicity is the soul of business. For some time past they had successfully ignored the outworn sentimental prejudice that had prevented soldiers and sailors from advertising the best methods of defeating the enemy; and we can all recall those brilliantly coloured announcements which used to brighten so many hoardings in those days, ‘Sink in Smith’s Submarine; Pleasure Trips for Patriots.’ Or ‘Duffin’s Portable Dug-Out Makes War a Luxury.’ Advertisement cannot fail to effect its aim; the name of an aeroplane that had been written on the sky in pink and pea-green lights could not but become a symbol of the conquest of the air; and the patriotic statesman, deeply considering what sort of battleship might best defend his country’s coasts, was insensibly and subtly influenced by the number of times that he had seen its name repeated on the steps of a moving staircase at an Imperial Exhibition. Nor could there be any doubt about the brilliant success that attended these scientific specialities so long as their operations were confined to the market. The methods of Commander Blair were in comparison private, local, obscure and lacking any general recognition; and by a strange irony it was a positive advantage to this nameless and secretive crank that he had never advertised his weapons until he used them. He had paraded a number of merely fanciful balloons and fireworks for a jest; but the secrets to which he attached importance he had hidden in cracks of the Welsh mountains with a curious and callous indifference to the principles of commercial distribution and display. He could not in any case have conducted operations on a large scale, being deficient in that capital, the lack of which has so often been fatal to inventors; and had made it useless for a man to discover a machine unless he could also discover a millionaire. But it cannot be denied that when his machine was brought into operation it was always operative, even to the point of killing the millionaire who might have financed it. For the millionaire had so persistently cultivated the virtues of self-advertisement that it was difficult for him to become suddenly unknown and undistinguished, even in scenes of conflict where he most ardently desired to do so.