“The personal characteristics of the criminal include the purely biological features of his condition, such as race, age, sex; and the bio-social features, such as civil status, profession, residence, social class, and education, which have been up to this time the almost exclusive subject of criminal statistics. “The physical factors of crime are the climate, nature of the soil, length of nights and days, the seasons, the annual temperature, meteorological conditions, and agricultural production. “The social factors include the density of population; public opinion, morals, religion; condition of the family; the educational system; industrial production; alcoholism; economic and political conditions; public administration, the courts, the police; and in general the legislative, civil, and penal organization:—that is to say, a medley of latent causes, which interlace and combine in all parts of the social organism, and almost always escape the attention of ... criminologists and legislators.” [107] ANTHROPOLOGICAL FACTORS. Let us consider first the “personal characteristics of the criminal.” Professor Ferri draws the following conclusions with regard to the existence of anthropological factors in general: “In fact, if crime were the product of the social environment exclusively, how could the fact be explained, that in the same social environment and in like circumstances of poverty, abandonment, and lack of education, out of 100 individuals, 60 commit no crime, and of the 40 that remain, 5 prefer suicide to crime, 5 become insane, 5 become beggars or non-dangerous vagrants, and only the 25 others become real criminals? And why is it that among these, while some limit themselves to theft without violence, others commit robberies, and even, before the victim resists, or threatens, or calls for help, commit a murder with the sole aim of theft?” [108]