Crime being a social phenomenon, and society being influenced, as we have seen, by the physical environment, one might say that this environment is a factor in criminality. He who reasons thus would have to grant that the physical environment is only an indirect factor, and therefore a very remote cause. It would be as fair to say that the invention of gunpowder was one of the causes of all murders committed with fire-arms. However, in reasoning thus I believe we forget that crime is an historic phenomenon, modifying itself according to the condition of society, and consequently regulated by laws that are independent of the physical environment. In other words, the environment is the reason why a people provides for its needs by working the material that nature has furnished; but the manner in which this work is done is independent of this environment. And it is upon this manner of working that criminality depends. An example taken from practice will make clear what I have been saying. From the nature of the soil of Sicily it is possible to work sulphur mines there. The criminality of Sicily is very great, especially in the parts where the mines are found, and many murders particularly are committed there. We might be disposed to believe that here the physical factors came into play. Now it is true that the nature of the soil is the cause of the exploiting of the mines, but the criminality is dependent entirely upon the way in which the exploiting is done, and this has nothing to do with the physical environment. To particularize: these mines are exploited in the capitalistic fashion, i.e., with the aim of getting as much profit as possible, which brings it about that the workers are untaught, demoralized and made degenerate by ill-paid labor, excessively severe, and carried on in an unwholesome atmosphere. Hence come the higher figures for criminality. [116]