=The Mating-Time.= We are familiar with the changes that take place at puberty. We laugh at the girl who, throwing off her tom-boy ways, suddenly wants her skirts let down and her hair done up. We laugh at the boy who suddenly leaves off being a rowdy, and turns into a would-be dandy. We scold because this same boy and girl who have always been so "sweet and tractable" become, almost overnight, surly and cantankerous, restive under authority and impatient of family restraint. We should neither laugh nor scold, if we understood. Nature is succeeding in her purpose. She has led the young life on from self to parents, from parents to gang or chum, and now she is trying to lead it away from all its earlier attachments, to set it free for its final adventure in loving. The process is painful, so painful that it sometimes fails of accomplishment. In any case, the strain is tremendous, needing all the wisdom and understanding which the family has to offer. It is no easy task for any person to free himself from the sense of dependence and protection, and the shielding love that have always been his; to weigh anchors that are holding him to the past and to start out on the voyage alone. At this time of change, the chemistry of the body plays an important part in the development of the mental traits; all half-developed tendencies are given power through the maturing of the sex-glands, which bind them into an organization ready for their ultimate purpose. The current is now turned on, and the machinery, which has been furnished from the beginning, is ready for its task. After a few false starts in the shape of "puppy love," the mature instinct, if it be successful, seeks until from among the crowd it finds its mate. It has graduated from the training-school and is ready for life. CIVILIZATION'S PROBLEM =When Nature's Plans Fall Through.= We have been describing the normal course of affairs. We know that all too often the normal is not achieved. Inner forces or outer circumstances too often conspire to keep the young man or the young woman from the culmination toward which everything has been moving. If the life-force cannot liberate itself from the old family grooves to forge ahead into new channels, or if economic demands or other conditions make postponement necessary, then marriage is not possible. All the glandular secretions and internal stimuli have been urging on to the final consummation, developing physical and emotional life for an end that does not come; or if it does come, is not sufficient to satisfy the demands of the age-old instinct which for millions of years knew no restraint. In any case, man finds himself, and woman herself, face to face with a pressing problem, none the less pressing because it is in most cases entirely unrecognized.