“The social penal question is a question above all of social transformation.” Many objections have been made to this statement. The school of Lombroso and Ferri sets up in opposition its theory of the triplex character of the factors of crime; cosmic, individual, and social. When society is so modified that the interests of the individual are identical with those of the community, it would be only one part of crime that would disappear; one could not, for example, prevent an extraordinary heat from causing crimes against morals. According to Dr. Turati it is not impossible to refute this objection, though it may be difficult to do so. In the first place Ferri recognizes the social causes as more important than the other two put together. He estimates that the number of persons driven to crime by social reasons (passion and occasion) is more than 60%; the others (insane or half-insane criminals, born-incorrigibles, and habituals) form a minority, then. But among these there are many criminals by habit, who were not born as such, but have become such from force of circumstances. Dr. Turati estimates that from 70% to 75% of criminals have come to commit their crimes from social causes. When we take account further of the fact that about 18% of the prisoners are insane, the number of real criminals who have become such from other than social causes is reduced to 10% at the most. According to Dr. Turati the physical and anthropological factors exert an influence upon the form, but not upon the nature, of the crime. Further, these three causes are present in every crime, but almost no crime would be committed without the social cause. It is this last that is always the predominant factor. When it is removed, then, the other two are reduced to zero. The facts have proved this. Owen’s colony was not made up of peculiar material, and the physical surroundings were neither better nor “more honest” than any other. Nevertheless, crime was unknown there. But the author furnishes still further proofs in support of his thesis that physical and anthropological causes amount to nothing in comparison with social causes, which in turn are dependent upon economic conditions. With the exception of crimes committed by the propertied class, which are in general the result of excessive cupidity, or a commercial uneasiness, and which will “ipso facto” disappear without any doubt when once society is otherwise organized, the greatest contingent of criminals is furnished by the class of non-possessors. Now all the physical influences, such as climate, act upon the two classes in the same way, nor are there anthropological differences between the two classes, yet the difference between them as regards criminal tendencies is great. It is the social factors, then, that explain the difference.