Man has the choice of two methods of race improvement. He can breed from the best or he can eliminate the worst by segregation or sterilization. The first method was adopted by the Spartans, who had for their national ideals military efficiency and the virtues of self-control, and along these lines the results were completely successful. Under modern social conditions it would be extremely difficult in the first instance to determine which were the most desirable types, except in the most general way and even if a satisfactory selection were finally made, it would be in a democracy a virtual impossibility to limit by law the right to breed to a privileged and chosen few. Interesting efforts to improve the quality as well as the quantity of the population, however, will probably be made in more than one country after the war has ended. Experiments in limiting reproduction to the undesirable classes were unconsciously made in mediæval Europe under the guidance of the church. After the fall of Rome social conditions were such that all those who loved a studious and quiet life were compelled to seek refuge from the violence of the times in monastic institutions and upon such the church imposed the obligation of celibacy and thus deprived the world of offspring from these desirable classes. In the Middle Ages, through persecution resulting in actual death, life imprisonment and banishment, the free thinking, progressive and intellectual elements were persistently eliminated over large areas, leaving the perpetuation of the race to be carried on by the brutal, the servile and the stupid. It is now impossible to say to what extent the Roman Church by these methods has impaired the brain capacity of Europe, but in Spain alone, for a period of over three centuries from the years 1471 to 1781, the Inquisition condemned to the stake or imprisonment an average of 1,000 persons annually. During these three centuries no less than 32,000 were burned alive and 291,000 were condemned to various terms of imprisonment and other penalties and 17,000 persons were burned in effigy, representing men who had died in prison or had fled the country. No better method of eliminating the genius producing strains of a nation could be devised and if such were its purpose the result was eminently satisfactory, as is demonstrated by the superstitious and unintelligent Spaniard of to-day. A similar elimination of brains and ability took place in northern Italy, in France and in the Low Countries, where hundreds of thousands of Huguenots were murdered or driven into exile.