Observation shows that the class known as degenerates is increasing much more rapidly than the general population and that their average duration of life has been lengthened. Diseases may be cured, but degeneracy, which is usually due to some inherited defect in the physical, mental or moral nature of the individual, is rarely amenable to curative treatment. It is only through applied eugenics that the vast volume of disease and degeneracy which flows through the channels of heredity can be prevented. Obviously this can be accomplished only through education and legislative restriction upon the procreation of the unfit. In the making of the child, the mother not only contributes one half of the ancestral qualities which enter into its constitution, but furnishes all the nutrition and energy which serve to support its life. From this point of view the mother is the supreme parent of the child, she is the source of its life and from her blood is drawn the material which contributes to its growth and development. The welfare of the mother is the welfare of the child. We have thus come to recognize the dominant influence of the mother’s relation to the health, as well as the life of the race. A high standard of physical motherhood is the most favorable asset of a nation. Havelock Ellis, in his recent work, on the Psychology of Sex, says, “Nations have begun to recognize the desirability of education, but they have scarcely yet come to recognize that the nationalization of health is even more important than the nationalization of education. If it were necessary to choose between the task of getting children educated and the task of getting them well born and healthy, it would be better to abandon education. There have been many great people who never dreamed of national systems of education; there has been no great people without the art of producing healthy and vigorous children.” Newman, the distinguished author of the work on “Infant Mortality” declares that the problem of infant mortality is not one of sanitation alone, or housing, or indeed of poverty as such, it is mainly a question of motherhood. It is not probable that the scientific methods which have been successfully applied to plants and the selective breeding of animals will ever replace the haphazard methods of human reproduction. There is no fact better established than that a man can transmit only that which he is. If his system is weakened by excess or tainted with disease he can beget only physical weakness, or beings tainted with disease. The syphilitic, the consumptive, the epileptic, the alcoholic, should not produce his kind. _NEO-MALTHUSIANISM AND RACE HYGIENE IN “PROBLEMS IN EUGENICS.” Vol. 2. London, 1913. Dr. Alfred Ploetz, President of the Int. Soc. for Race Hygiene._