The amazing and as yet unchecked movement of population toward the city means usually a curtailment of living area for all concerned. The more people per acre the greater the limitation of individual action and the greater the need of self-control and social supervision. Restrictions of all sorts are necessary for the peace of a community wherein the physical conditions almost force people to jostle and irritate one another. In such a situation the more spontaneous and unconventional the expression of life the greater the danger of bothering one's neighbors and of conflicting with necessary but artificial restrictions. Even innocent failure to comprehend the situation may constitute one anti-social or delinquent, and the foreigner as well as the boy is often misjudged in this way. But on the score of the city's inevitable "Thou shalt not," it is the boy who suffers more than any other member of the community. His intensely motor propensities, love of adventure, dim idea of modern property rights, and the readiness with which he merges into the stimulating and mischief-loving "gang" operate to constitute him the peerless nuisance of the congested district, the scourge of an exasperated and neurasthenic public, the enemy of good order and private rights. Hence juvenile delinquency and crime increase proportionately with the crowding of the modern city, the boy offending five times to the girl's once, and directing 80 per cent of his misdemeanors against property rights. In the city of Chicago alone the 1909 records show that in one year there passed through the courts 3,870 children under seventeen years of age, 10,449 under twenty years, and 25,580 under twenty-five years of age. But it is not the actual delinquency of which the law takes account that most impresses one; it is rather the weight of failure and mediocrity, the host of "seconds" and "culls" that the city treatment of childhood produces. The constrictions, vicissitudes, and instability of city life often make such havoc of the home that the boy is practically adrift at an early age. He has no abiding-place of sufficient permanency to create a wealth of association or to develop those loyalties that enrich the years and serve as anchorage in the storms of life. He moves from one flat to another every year, and in many cases every six months. In such a kaleidoscopic experience the true old-fashioned neighbor, whose charitable judgment formerly robbed the law of its victims, is sadly missed. Formerly allowance was made out of neighborly regard for the parents of bothersome boys, but among the flat-dwellers of today proximity means alienation, familiarity breeds contempt, and far from being neighbors, those who live across the hall or above or below are aggrieved persons who have to put up with the noise of an unknown rascal whose parents, like themselves, occupy temporarily these restricted quarters--these homes attenuated beyond recognition.