"Early Marriage.-The preceding paragraph contains a sufficient reason for condemning early marriage; that is, marriage before the ages mentioned. It is probable that even the ages of twenty and twenty-four are too early for those persons whose development is uncommonly slow. But there are other cogent reasons for discountenancing early marriages, also drawn from the physiology of reproduction, to say nothing of the many reasons which might be urged on other grounds. 1. During the development of the body, all its energies are required in perfecting the various tissues and organs. There is no material to be spared for any foreign purpose. 2. The reproductive act is the most exhaustive of all vital acts. Its effect upon an undeveloped person is to retard growth, weaken the constitution, and dwarf the intellect. 3. The effects upon the female are even worse than those upon the male; for, in addition to the exhaustion of nervous energy, she is compelled to endure the burdens and pains of child-bearing when utterly unprepared for such a task, to say nothing of her unfitness for the other duties of a mother. With so many girl-mothers in the land, it is any wonder that there are so many thousands of unfortunate individuals who never seem to get beyond childhood in their development? Many a man at forty years is as childish in mind and as immature in judgment, as a well-developed lad of eighteen would be. They are like withered fruit plucked before it was ripe; they can never become like the mellow and luscious fruit allowed to mature properly. They are unalterably molded; and the saddest fact f all is that they will give to their children the same imperfections; and the children will transmit them to another generation, and so the evil will go on increasing, unless checked by extinction."