At the time of puberty, we learned from the last article, that the first manifestations of sexual maturity in the girl is the appearance of the menstrual flow. But also at puberty there comes the sexual impulse, which evidences itself during sleep, in a filmy substance dropping from the mouth of the uterus. This “detumescence” does not appear very often in young girls, but later in life when sex instinct becomes stronger it occurs during sleep, especially in young widows having experienced sexual relations. They are, however, seldom aware of its taking place; consequently, it has not the danger which it presents to the boy. * * * * * In the preceding article on puberty, we discussed only the girl at puberty, but here it is necessary to understand that during puberty many changes take place in the boy, such as change of voice, the growth of hair on the face, various parts of the body, and most important, the discharge of the sexual fluid commonly known as seminal emissions. This latter symptom appears in every normal healthy boy on reaching the age of puberty, but unlike the menstrual period which occurs at a stated period in girls, the seminal emissions do not depend upon a special period; they occur at different times, often twice a month. Unlike menstruation, which in the girl lasts from two to seven days, the discharge lasts only a few seconds, and is not accompanied by pain. This expulsion is considered perfectly normal, and is not a sign of physical or sexual weakness, but a sign that a surplus accumulation of ripe sex cells are present and have come to their full development and overflow. Nature takes care of this and uses all of this life-giving fluid according to the needs of the individual, casting off the surplus. It is this symptom that alarms young boys at puberty. It is this overflow which enables quack doctors to play upon the innocent and ignorant boy, telling him that it is an indication of weakness. And it is also this—as the result of telling older boys about it—that leads boys to houses of prostitution; for they are told by their ignorant advisers that they must have sexual relations or endanger their sexual capacity.