The Human Race is now on trial for its life! One hundred and three years ago last April, James Watt, a poor Scotch mechanic, while taking his walk on Sunday afternoon on Glasgow Green, conceived the idea which has made steam man's submissive and untiring slave. Steam enables the fifteen millions of adults in Great Britain and Ireland to produce more commodities than the whole population of the earth could produce without its assistance. Steam, plus the virgin soil of two new continents, has placed the means of self-destruction within the reach of hundreds of millions of human beings whose ancestors were almost as safe in their ignorance and poverty as the beasts they attended. At the same time, the steam-engine is an infuriate propagator; and myriad creatures of its producing--creatures of eager desires, thin brains, excessive vanity, and small self-control--seem formed to bend the neck to the destructive tyranny of fashion, and yield helplessly to the more destructive tyranny of habit. The steam-engine gives them a great variety of the means of self-extirpation,--air-tight houses, labor-saving machines, luxurious food, stimulating drinks, highly wrought novels, and many others. Let _all_ women for the next century but wear such restraining clothes as are now usual, and it is doubtful if the race could ever recover from the effects; it is doubtful if there could ever again be a full-orbed, bouncing baby. Wherever we look, we see the human race dwindling. The English aristocracy used to be thought an exception, but Miss Nightingale says not. She tells us that the great houses of England, like the small houses of America, contain great-grandmothers possessing constitutions without a flaw, grandmothers but slightly impaired, mothers who are often ailing and never strong, daughters who are miserable and hopeless invalids. And the steam-engine has placed efficient means of self-destruction within reach of the kitchen, the stable, the farm, and the shop; and those means of self-destruction are all but universally used. Perhaps man has nearly run his course in this world, and is about to disappear, like the mammoth, and give place to some nobler kind of creature who will manage the estate better than the present occupant. Certainly we cannot boast of having done very well with it, nor could we complain if we should receive notice to leave. Perhaps James Watt came into the world to extinguish his species. If so, it is well. Let us go on eating, drinking, smoking, over-working, idling, men killing themselves to buy clothes for their wives, wives killing themselves by wearing them, children petted and candied into imbecility and diphtheria. In that case, of course, there will be no Coming Man, and we need not take the trouble to inquire what he will do.