The birth control movement assumes that the world suffers from overpopulation. It does not; it suffers from incorrect distribution of populations, and no doctrine of birth control will ever affect this fact. All the authorities on the statistics of population tell us it requires an average of four children to each family to keep the population even stationary, not to talk of overcrowding. Two children reaching maturity replace their parents, and because of the high mortality in infancy, and the large number of the unmarried and the birth controllers and abortionists, four children are needed to a family to make a new generation as large as the old. An average of one, two, or even three children to a family means a loss in population, unless the loss is supplied, as in the United States, by immigration. An average of five or six children means an increase in the population. Having none or two children to a family and relying on immigration to preserve the nations means political annihilation, as can be readily shown. In New York State in 1919 instead of the required four children to keep the population stationary, as far as the native Americans are concerned, there was one child to every ten families. The American nation was founded and built up wholly by Nordic races, immigrants from Great Britain and Ireland, Germany, and a few from France, Holland and Sweden. All our national traditions are from these Nordic immigrants, our notions of self government, our peculiar democracy, our constitution, our language and literature. These Nordic peoples are dying out here in appalling numbers for two chief reasons, one of which is birth control and the other is the American climate. The civilization which affects us has always existed along a geographical belt reaching from the British Isles to above Rome, and covering Great Britain, Ireland, France, Spain, middle and western Germany, and Italy to below Florence. The Grecian civilization was not indigenous, but the result of a Nordic occupation, and it ceased centuries before Christ. Huntington of Yale and several others have shown, by studying the production of thousands of piece workers and students over a long time, that man does his best work physically and mentally under four climatic conditions: a mean temperature of about sixty-two degrees Fahrenheit for physical work and about forty degrees for mental work; secondly, there must be a humidity of about seventy-five per cent.; thirdly, the climate must be variable, be that of the belt of cyclonic storms; fourthly, there must be a quantity of sunlight such as that found in the European racial habitat of the person considered. These conditions are found curiously in exactly these degrees in the civilized parts of Europe and not elsewhere. Above and below that area they are lacking and there has never been any civilization where they are wanting. The reason physical and mental productivity lessen annually with us in