The rise in population, the multiplication of proletarian populations as a first result of mechanical industry, the appearance of great centers of population, the so-called urban drift, and the evils of overcrowding still remain insufficiently studied and stated. It is a significant though neglected fact that when, after long agitation in Great Britain, child labor was finally forbidden by law, the supply of children dropped appreciably. No longer of economic value in the factory, children were evidently a drug in the "home." Yet it is doubly significant that from this moment British labor began the long unending task of self-organization.(1) Nineteenth century economics had no method of studying the interrelation of the biological factors with the industrial. Overcrowding, overwork, the progressive destruction of responsibility by the machine discipline, as is now perfectly obvious, had the most disastrous consequences upon human character and human habits.(2) Paternalistic philanthropies and sentimental charities, which sprang up like mushrooms, only tended to increase the evils of indiscriminate breeding. From the physiological and psychological point of view, the factory system has been nothing less than catastrophic. Dr. Austin Freeman has recently pointed out (3) some of the physiological, psychological, and racial effects of machinery upon the proletariat, the breeders of the world. Speaking for Great Britain, Dr. Freeman suggests that the omnipresence of machinery tends toward the production of large but inferior populations. Evidences of biological and racial degeneracy are apparent to this observer. "Compared with the African negro," he writes, "the British sub-man is in several respects markedly inferior. He tends to be dull; he is usually quite helpless and unhandy; he has, as a rule, no skill or knowledge of handicraft, or indeed knowledge of any kind.... Over-population is a phenomenon connected with the survival of the unfit, and it is mechanism which has created conditions favorable to the survival of the unfit and the elimination of the fit." The whole indictment against machinery is summarized by Dr. Freeman: "Mechanism by its reactions on man and his environment is antagonistic to human welfare. It has destroyed industry and replaced it by mere labor; it has degraded and vulgarized the works of man; it has destroyed social unity and replaced it by social disintegration and class antagonism to an extent which directly threatens civilization; it has injuriously affected the structural type of society by developing its organization at the expense of the individual; it has endowed the inferior man with political power which he employs to the common disadvantage by creating political institutions of a socially destructive type; and finally by its reactions on the activities of war it constitutes an agent for the wholesale physical destruction of man and his works and the extinction of human culture."