The experience of the race, particularly in its movement toward and its progress in civilization, has approved monogamy for the simple reason that monogamy is in harmony with the essential and immutable elements of human nature. Taking the word natural in its full sense, we may unhesitatingly affirm that monogamy is the only natural form of marriage. While promiscuity responds to certain elemental passions and temporarily satisfies certain superficial wants, it contradicts the parental instinct, the welfare of children and of the race, and the overpowering forces of jealousy and individual preference in both men and women. While polyandry satisfied in some measure the temporary and exceptional wants arising from scarcity of food or scarcity of women, it finds an insuperable barrier in male jealousy, in the male sense of proprietorship, and is directly opposed to the welfare of the wife, and fatal to the fecundity of the race. While polygamy has prevailed among so many peoples and over so long a period of history as to suggest that it is in some sense natural, and while it does seem to furnish a means of satisfying the stronger and more frequently recurring desires of the male, it conflicts with the numerical equality of the sexes, with the jealousy, sense of proprietorship, equality, dignity and general welfare of the wife, and with the best interests of the offspring.