history of flight; it was not the least of the ordeals of the early aeronaut. The aeroplane or airship pilot who disappointed the expectations of his public found no better treatment than Christian and Faithful met with in Bunyan's Vanity Fair. There is here no question of national weaknesses; in France and Germany, in England and America, the thing has happened again and again. If an ascent was announced, and was put off because the weather was bad, the crowd jeered, and hooted, and threw stones. On more than one occasion a pilot has been driven by the taunts of the crowd to attempt an impossible ascent; and has met his death. If a damaged machine fell to earth, the crowd often wreaked their vengeance on it, as deer fall upon a wounded comrade. The men who made up the crowd were most of them kind and trustworthy in their private relations, and in matters that they understood were not unreasonable or inconsiderate. But aerial navigation was a new thing, and their attitude to it was wholly spectacular. They came to see it because they craved excitement, and under the influence of that cruel passion they were capable of the worst excesses of the Roman populace at a gladiatorial show. In the years that joined the centuries, that is, from 1898 to 1903, aviation seemed a forlorn hope, but there was great activity in the construction of airships, and something like a race for supremacy between France and Germany. In 1898 the Brazilian, Alberto Santos Dumont, made his first gallant appearance in an airship of his own construction. Born in 1873, the son of a prosperous coffee-planter of San Paulo in Brazil, Santos Dumont was a young and wealthy amateur, gifted with mechanical genius, and insensible to danger. The accidents and perils that he survived in his many aerial adventures would have killed a cat. One of his airships collapsed and fell with him on to the roofs of Paris. Another collapsed and fell with him into the Mediterranean. A third caught fire in the air, and he beat out the flames with his Panama hat. He survived these and other mishaps, unhurt, and after making more than a hundred ascents in airships, turned his attention to aeroplanes, and was the first man to rise from French soil in a flying machine. From his boyhood mechanisms had attracted him; he was well acquainted with all the machines on his father's plantation, and he records an observation that he made there--the only bad machine on the plantation, he says, was an agitating sieve; the good machines all worked on the rotary principle. He became a champion of the wheel, and of the rotary principle. There was something of the fierceness of theological dispute in the controversies of these early days. The wheel, it was pointed out, is not in nature; it is a pedantic invention of man. Birds do not employ it to fly with, nor fish to swim with. The naturalist school of aeronauts declared against it. In 1892 M. A. le Compagnon made experiments, not very successfully, in Paris, with a