What is true of men is true of horses. Strength, which implies size, is necessary in the horse militant, particularly in the artillery; but it is got at the expense of agility and endurance. The “toughest” American horse is the little Western “cayuse,” the “Indian pony” of our early literature. This matter of so-called “degeneration” in the stature of men and animals has a more than military interest. It is not without meaning that all peoples have traditions of giants, and that all literatures are full of references to a remote ancestry of superior size and strength. Even Homer tells of his heroes before the walls of Troy hurling at one another such stones as ten strong men of his degenerate day could not have lifted from the earth. The kernel of truth in all this is that the human race is actually decreasing in size. But this is not “degeneration.” It is improvement. Where are the megatherium, the dinosaurus, the mammoth and the mastodon? Where is the pterodactyl? What has happened to the moa and the other gigantic bird whose name I do not at this moment recall—maybe the epiornis? Condemned and executed by Nature for unfitness in the struggle for existence. The elephant, the hippopotamus and the rhinoceros are traveling the same road to extinction, and the late American bison could show them the way. What is the disadvantage of bulk in animals? Feebleness. For an animal twice as heavy as another of the same species to have the same activity it would have to be not twice as strong, but four times as strong; and for some reason to this deponent unknown, Nature does not make it so. If four times as large, it would need to be sixteen times as strong. Observe the large birds; the little ones, the swallows and “hummers,” can fly circles around them. The biggest of them can not fly at all and their wings, from disuse, are vestigial. Many insects can fly, not only proportionately faster and farther than even the humming-bird, but actually. Is there, possibly, a lesson in this for the ingenious gentlemen who expect the freight and passenger business of the future to be done in the air? We are all familiar with the fact that if a man were as strong and agile in proportion as a flea he could leap several miles; one can figure out the exact number for oneself. If as strong as an ant he could shoulder and lug away a six-inch rifle and its carriage. Doubtless in the course of evolution (if evolution is permanent) man (if man is spared) will have the ant’s strength—and the ant’s size. Considering the advantages that the smaller insects and animalculæ have in the struggle for existence and the wonderful powers and capacities it must have developed in them—which we know, indeed, from such observers as Sir John Lubbock it actually has developed in the ant—I can see no reason to doubt that some of them have attained a high degree of civilization and enlightenment.