It is necessary to take into account all phases of the social emergency. The question is not merely one of physiology, or pathology, or diseases, or wages, or industrial education, or recreation, or knowledge, or commercial organization, or legal regulation, or lust, or social customs, or cultivation of will power, or religion. It is all of this and more. The danger is that we shall see only one or two sides of a many-sided problem. A solution may appear adequate because it leaves essential factors out of consideration. One physiological factor in the situation is of fundamental importance, namely, the discrepancy between the age of sexual maturity and the prevailing age of marriage,--an artificial condition largely determined by social customs, by modern educational systems, and by standards of living. While society has set forward, generation after generation, the age at which marriage seems feasible, the age of puberty has remained virtually the same. This unnatural condition--as artificial as the clothes we wear--is a phase of the emergency which should be considered by those who condemn as unnatural and forced the education of adolescent boys and girls in sexual hygiene and morals. Partly as a result of this has come the general acceptance of the double standard of chastity which has bitterly condemned the girl--made her an outcast of society--and excused the boy for the same offense, on the false plea of physiological necessity. With the sanction of this double standard, tacitly accepted by society, thousands of prostitutes have been harbored and protected. What shall we do with them? We may drive them out of certain districts and certain houses, and even certain cities, but they are still with us, and we are responsible for them. If they are denied resorts where men seek them, they will seek men. Most of them are unable, without special training, to earn a living in any other way, and many of them would not if they could. A majority are mentally defective and should be wards of society. Any plan which fails to take care of these women--adequately, permanently, and humanely--ignores one of the greatest of the problems which history, with the sanction of society, has made a factor of the present emergency. The medical phase of the present situation is not often ignored, except by those who hold that there is no such thing as disease. All countries are alarmed over the prevalence of venereal infection. Definite information, however, concerning the extent of these diseases, the sources and conditions of contagion, and the complications and results, is not to be had; because society still persists in treating venereal diseases as not subject to public registration and control, in spite of their terrible attacks on tens of thousands of innocent victims.