Sometimes the criminal tradition is carried on through many generations and with great skill, a kind of professional caste being formed. The Johnson family of counterfeiters in America is an example of this. The grandfather was a famous counterfeiter in his day; the next generation were well known to the police; in the third generation criminal audacity and skill appear to have reached a very high degree in seven brothers and sisters, one of them, especially, being considered one of the most expert counterfeiters of the day; he has spent a large part of his life in various prisons. The so-called “Jukes” family of America is the largest criminal family known, and its history, which has been carefully studied, is full of instruction.[33] The ancestral breeding-place of this family was in a rocky inaccessible spot in the state of New York. Here they lived in log or stone houses, sleeping indiscriminately round the hearth in winter, like so many radii, with their feet to the fire. The ancestor of the family, a descendant of early Dutch settlers, was born here between 1720 and 1740. He is described as living the life of a backwoodsman, “a hunter and fisher, a hard drinker, jolly and companionable, averse to steady toil,” working by fits and starts. This intermittent work is characteristic of that primitive mode of life led among savages by the men always, if not by the women, and it is the mode of life which the instinctive criminal naturally adopts. This man lived to old age, when he became blind, and he left a numerous, more or less illegitimate, progeny. Two of his sons married two out of five more or less illegitimate sisters; these sisters were the “Jukes.” The descendants of these five sisters have been traced with varying completeness through five subsequent generations. The number of individuals thus traced reaches 709; the real aggregate is probably 1200. This vast family, while it has included a certain proportion of honest workers, has been on the whole a family of criminals and prostitutes, of vagabonds and paupers. Of all the men not twenty were skilled workmen, and ten of these learnt their trade in prison; 180 received out-door relief to the extent of an aggregate of 800 years; or, making allowances for the omissions in the record, 2300 years.[34] Of the 709 there were 76 criminals, committing 115 offences. The average of prostitution among the marriageable women down to the sixth generation was 52.40 per cent.; the normal average has been estimated at 1.66 per cent. There is no more instructive study in criminal heredity than that of the Jukes family. § 7. _Tattooing._ The practice of tattooing is very common among criminals, and is frequently carried to an extraordinary extent, twenty or thirty designs being occasionally found on the same subject. Lombroso was the first to point out the full biological and psychical significance of this practice.