From this point onwards, nothing could be more natural than the rise of a new school, whose object was to make an experimental study of social pathology in respect of its criminal symptoms, in order to bring theories of crime and punishment into harmony with everyday facts. This is the positive school of criminal law, whereof the fundamental purpose is to study the natural genesis of criminality in the criminal, and in the physical and social conditions of his life, so as to apply the most effectual remedies to the various causes of crime. Thus we are not concerned merely with the construction of a theory of anthropology or psychology, or a system of criminal statistics, nor merely with the setting of abstract legal theories against other theories which are still more abstract. Our task is to show that the basis of every theory concerning the self-defence of the community against evil-doers must be the observation of the individual and of society in their criminal activity. In one word, our task is to construct a criminal sociology. For, as it seems to me, all that general sociology can do is to furnish the more ordinary and universal inferences concerning the life of communities; and upon this canvas the several sciences of sociology are delineated by the specialised observation of each <p xvii>distinct order of social facts. In this manner we may construct a political sociology, an economic sociology, a legal sociology, by studying the special laws of normal or social activity amongst human beings, after previously studying the more general laws of individual and collective existence. And thus we may construct a criminal sociology, by studying, with such an aim and by such a method, the abnormal and anti-social actions of human beings--or, in other words, by studying crime and criminals. Neither the Romans, great exponents as they were of the civil law, nor the practical spirits of the Middle Ages, had been able to lay down a philosophic system of criminal law. It was Beccaria, influenced far more by sentiment than by scientific precision, who gave a great impetus to the doctrine of crimes and punishments by summarising the ideas and sentiments of his age.[1] Out of the various germs contained in his generous initiative there has been developed, to his well-deserved credit, the classical school of criminal law. [1] Desjardins, in the Introduction to his ``Cahiers des <E'>tats G<e'>n<e'>raux en 1789 et la L<e'>gislation Criminelle,'' Paris, 1883, gives a good description of the state of public opinion in that age. He speaks also of the charges which were brought against the advocates of the new doctrines concerning crime, that they upset the moral and social order of things. Nowadays, charges against the experimental school are cited from these same advocates; for the revolutionary of yesterday is very often the conservative of to-day.