THE STATISTICIANS. I. A. M. GUERRY. In his “Essai sur la statistique morale de la France”, the author has made a study of the influence of age, sex, season, education, etc., upon criminality. But there is scarcely to be found an exposition of the influence of economic conditions upon the subject which we are considering. The following passages, however, are not devoid of interest. “Wealth, (as determined by the amount of taxes on personal and real property) more often than density of population, coincides with crimes against property, of which it thus appears to be an indirect cause. We shall observe, however, that while the maximum of wealth falls in the departments of the North, where the greatest number of crimes against property are found; and the minimum in the center where these crimes are most rare; yet in the South the average is almost as high as in the North. Now if in the North is wealth which indirectly produces the crimes against property, why is it that the same is not true of the South? It would be unsafe to conclude from the fact that the poorest departments are those where the fewest crimes against property are committed, that poverty is not the principal cause of these crimes. In order to justify this conclusion, which in other regards we are far from rejecting, more direct proofs would be necessary. As a matter of fact, it is possible that the departments where there is the least wealth are not those where there are the greatest number of the very poor; and that the departments where the largest fortunes are to be found are just those where the poverty of a part of the population is greatest. “The question of the effect of wealth or poverty upon morality presents more difficulty than one would suspect at first glance. To study it it would be necessary to determine the ratio of the indigent and pauper class in each department. Some documents upon the subject have been published, it is true, but they have no authentic character, and do not appear to merit enough confidence for us to give the analysis of them here.” [31] Further along Guerry shows that the departments where commerce and manufacturing are most highly developed furnish also the greatest number of crimes against property. But the author has not investigated the connection between these two symptoms. Although not rejecting, then, entirely the hypothesis that poverty is not the principal cause of crimes against property, Guerry recognizes nevertheless that a causal connection between poverty and crime is possible, that is to say he perceives that the department where the greatest poverty prevails is not necessarily that which is the poorest, nor that the richest is the one that has the fewest of the very poor. II. AD. QUETELET. An exposition of the whole system of this author would lead us too far. But the following quotations from his “Physique sociale” will suffice to show the breadth of his views and the vastness of his conception of society.