The second type, those who unexpectedly make good by their own plan, which is not of our making, is of profound sociological significance. “We possess only that which we set free”, said an old Chinese philosopher. How many of us know girls whom we have not set free, but who have taken the bit in their teeth and run away from us, later to emerge decently clothed, resourceful, industrious, successful and adjusted to life beyond our fondest hopes. Recently I visited some thirty state institutions for the training of delinquent girls. Most of the superintendents reported stories of rebellion, escape, followed by the inexplicable “making good.” Many commented on fortunate marriages contracted because the girl strayed in forbidden paths, dancehalls, piers, rinks, cafés and other loafing places of Prince Charming. We are more familiar with this type of fortuitous success in boys than in girls, boys who flee from us to navy, army or wild west. Many a candid probation officer will tell you that she has met with it in girls.[109] Detective Burns, speaking of the counterfeiter Wilken, says below (document No. 92, p. 236): “I have often wondered whether his talents would have been smothered by convention if he had been kept in the straight and narrow path. The most commonplace man becomes sometimes the most startlingly original crook. The reformed crook, on the other hand, turns to honesty and becomes duller than ditch-water.” In the paper quoted above as document No. 88, p. 200, Jessie Taft says: The intimate psychological or psychiatric interpretation, the individual intensive treatment, are fundamental for solving the problems of delinquency. No matter how ideal the social conditions, no matter how farsighted the laws, there will always be compensatory behavior in the lives of individuals, and some of this behavior is bound to be unwholesome and socially undesirable. Instinctive protective reactions on the part of society, even the more enlightened mass treatment in institution, will bring results only by accident. What we need is a treatment of behavior so scientific that results instead of being accidental will be subject to intention and prediction. Biology studies the life-history of individual forms and explains any particular details of their behavior in the light of the life of the organism as a whole from birth to death. Where does a similar case study of human beings belong? Without it there can be no scientific solution of the problems of delinquency.