That some day man should fly like a bird has been, in spite of superstition, an article of honest belief from the beginning of time, and in the dove of Archytas alone we have proof enough that, even in those days, the successful accomplishment of flight was accepted as a fact of science. During the Middle Ages so common was this belief that every man who dabbled in physics was pronounced a magician, and as such was credited with the power of transporting himself through the air at will. Some, indeed, actually claimed the enviable privilege, Friar Bacon among others. But history records no practical illustration of their control of the air, while more than one death is chronicled of daring men who, with insufficient apparatus, launched themselves in imitation of birds upon space, and fell, more or less precipitately, to earth. The Italian who flapped himself off Stirling Castle trusted only to a pair of huge feather wings, which he had tied on to his arms, and got no farther on his way to France than the heads of the spectators at the bottom of the wall; while the Monk of Tübingen started on his journey from the top of his tower with apparatus that immediately turned inside out, and increased by its weight the momentum with which he came down plumb into the street. Beyond North Platte the same melancholy expanses again commence, the same rolling prairies, with the same dead cattle and the same herds of live ones, an occasional waggon or a stock-yard or snow-fence being all that interrupts the flat monotony. But approaching Sterling a suspicion of verdure begins in places to steal over the grey prairie, and flights of "larks," with a bright, pleasant note, give something of an air of animation to isolated spots. Here is a plough at work, the first we have passed, I think, since we left Omaha, and the plover piping overhead seem to resent the novelty. Cattle continue to dot the landscape, and all the afternoon the Platte rolls along a sluggish stream parallel to the track. The train happened to slacken pace at one point, and a man came up to the cars. He was a beggar, and asked our help to get along the road "eastward." One of his arms was in a sling from an accident, and his whole appearance eloquent of utter destitution. And the very landscape pleaded for him. Beggary at any time must be wretchedness, but here in this bleak waste of pasturage it must almost be despair. And as the train sped on, the one dismal figure creeping along by the side of the track, with the dark clouds of a snowstorm coming up to meet him, was strangely pathetic. And then Sterling. May Sterling be forgiven for the dinner it set before us!