Based upon statements, experiences and opinions of physicians, public officials and other responsible persons, 50% to 80% of all men between the ages of 18 and 30 years contract gonorrhea. 10% to 18% of the male population contract syphilis. 40% to 60% of all operations upon women for diseases of the generative organs result from gonorrheal infection. 80% of the inflammatory diseases peculiar to women are the result of gonorrheal infection. A large per cent., some say one half, of still born and premature deaths of children is due to syphilis. 25% to 35% of all cases of insanity are caused by syphilis contracted years before. 15% to 20% of all blindness is attributed to these diseases. P. 159. _A CONSTRUCTIVE POLICY WHEREBY THE SOCIAL EVIL MAY BE REDUCED. Harry Olson._ The large group of mentally retarded persons who may be included in the term “sub-normal” number in this country, according to the best authorities about 300,000. An important distinction must be made between two groups of the defective classes, those who may, and those who should not enjoy social privileges as members of the community. From a racial and eugenic point of view the inborn, or heredity defectives are by far the most important because the defect is germinal and therefore transmissible to the offspring. This class forms 75% or more of the defective classes. When so many as 75% of the feeble-minded are such by reason of germinal or hereditary taint, and since perhaps 50% of the women of the underworld are sub-normal, it becomes at once apparent that not only in order to reduce the number of women in public prostitution, but also to protect the race itself, we must adopt other methods of eliminating vice than those now employed. P. 358–359. _PROCEEDINGS OF THE NATIONAL CONFERENCE ON RACE BETTERMENT. January 8–12, 1914. Published by the Race Betterment Foundation. Edited by the Secretary._ Statistical Studies. The Significance of a Declining Birth Rate. Frederick L. Hoffman, Statistician of the Prudential Insurance Company, Newark, N. J. From an economic and social point of view a low birth rate and a low death rate would unquestionably be more advantageous than the opposite condition, which involves much needless waste of human energy and pecuniary expenditure. For reasons which require no discussion, every civilized country desires a normal increase in population, though a high degree of social and economic well-being is not at all inconsistent with even a stationary population condition such as for some years past has prevailed in France. P. 23. All the available statistical information seems to justify the conclusion that the world’s population in general, and of the more civilized countries in particular is increasing at the present time at a more rapid rate than in earlier years—a condition largely the result of a persistent and considerable decline in the birth rate. P. 28.