training, but it also acts to eliminate certain elements of the population. The work of campaigning and military tenure, such as is carried on by England, America, or the other civilizing powers, lies, in large part, in the low latitudes, where the European races do not find a favorable habitat. The low latitudes are particularly unwholesome for that dolicho-blond racial stock that seems to be the chief bearer of the machine industry. It results that the viability and the natural increase of the soldiery ia perceptibly lowered. The service in the low latitudes, as contrasted with Europe, for instance, is an extrahazardous occupation. The death rate, indeed, exceeds the birth rat«. But in the more advanced industrial communities, of which the English and American are typical, the service is a volunteer service ; which means that those who go to the ware seek this employment by their own choice. That ia to say, the human material so drawn off is automatically selected on the basis of a peculiar
• CI,, t.g., IIobsoD, Impfriallmn. pi. 11. ch. VII.