In a few decades, perhaps even much sooner, it will be regarded as quite reprehensible to permit young persons to enter into the relationship of marriage without a sane, practical knowledge of their own reproductive organism and the functions thereof, and of their physiological duties to themselves, to their companions in marriage, and to their children born or to be born. We may even see the practical application of the somewhat startling prophecy of Newell Dwight Hillis, D. D., who said: "The State that makes a man study two years before a license as druggist is given; that makes a young lawyer or doctor study three years before being permitted to practice; ought to ask the young man or young woman to pass an equally rigid examination before license is given to found an American home, and set up an American family." While the information above alluded to should be given alike to the young husband and the young wife, it cannot be doubted that the latter is the one of the pair who is most in need of this kind of instruction. While both the young man and the young woman require this instruction, the need is the greater in the case of the young woman, by the very nature of the case. The sex functions and processes play a much more important part in the life of the woman than in that of the man, the protests of some of the modern feminists to the contrary notwithstanding. The careful student of the sex life of men and women frankly confesses that in both the physical and the psychical realm the sex offices make a greater demand upon the time and attention of the woman than of the man. The love-life of the woman is far fuller and more absorbing than is that of the man. Unhappiness concerning her love-life renders the remainder of the life of the average woman of comparatively little account; while, with a happy love-life she will put up cheerfully with the absence of many other things which are usually regarded as necessities for happiness. As a writer has said: "Essentially, a woman is made for love--not exclusively, but essentially; and a woman who has had no love in her life has been a failure." The same rule operates on the physical plane. As the same writer has said: "Physically, the woman is also much more cognizant of her sex and much more hampered by the manifestation of her sex nature than man is." The manifestation of the incidents of menstruation is a constant reminder to the woman that she is a creature of sex. The phenomenon of pregnancy is, likewise, something from which the man is free. And, finally, the menopause, or "change of life," with its incidents greatly influencing the physical, mental, and emotional well-being of the woman, is Nature's final word to the woman that she is the active pole of sex-life. As the above-quoted writer has said: "Altogether it cannot be denied that woman is much more a slave of her sex-nature than man is of his. Nature has handicapped woman much more heavily than she has man."