_We must therefore recommend to all persons who are sickly or infirm in body or mind, and especially to all suffering from hereditary ailments, the use of means for the prevention or regulation of conceptions,[D] so that they may not, out of pure stupidity and ignorance, bring into the world creatures doomed to misery and misfortune, and predisposed to disease, insanity, and crime._ [D] We refer, of course, to such preventive methods as are completely harmless to the persons making use of them. Methods for the prevention of _conception_, in general fulfil this condition. _We must endeavour in this way to bring about a vast and universal sterilisation of all worthless, incapable or diseased people, without attempting to prohibit in an ascetic and impracticable manner the gratification of their normal sexual instinct and their desire for affection._ _The qualification for parentage must not be the possession of a certain amount of money or property, but solely the social worth and intrinsic hereditary qualities of the two individuals._ _The multiplication of all who are healthy, capable, and ethically fit must be encouraged as far as possible._ _An excessive frequency of childbirths in the case of one woman must be prevented and regulated by the use of the means mentioned above._ _In this way we shall carry out a true racial selection and prepare the way for a better and happier Humanity. And so at last we shall have brought our true sexual ethics into living being and reality._ * * * * * =_Just Ready._= [Illustration] Royal 8vo, 550 pp. Cloth. Price =21s.= net. THE SEXUAL QUESTION. A SCIENTIFIC, PSYCHOLOGICAL, HYGIENIC, and SOCIOLOGICAL STUDY for the CULTURED CLASSES. By AUGUST FOREL, M.D., Ph.D., LL.D. Formerly Professor of Psychiatry and Director of the _Provincial Lunatic Asylum, Zürich_. English adaptation by C. F. MARSHALL, M.D., F.R.C.S. (London). With 23 Illustrations, 17 of which are printed in colours. This book is the fruit of long experience and reflection. It has two fundamental ideas――the study of nature, and the study of the psychology of man in health and in disease. “It is imperative that every man and woman shall know (1) the complete facts of normal sexual life, i.e. the physical conditions of reproduction; and (2) so much of sex pathology as is necessary in order to avoid the many pitfalls existing round them. The highest praise we can give Prof. Forel’s book is to say that it meets this need. It is ‘a scientific, psychological, hygienic, and sociological study’ of the sexual question.”――_The New Age._ MARRIAGE AND DISEASE. Cloth. Price =10s. 6d.= net. Being an Abridged Edition of “Health and Disease in Relation to Marriage and the Married State.” (2 vols., =30s.= net.)