Another family record, the Zeros, reported by Poellman, of Bonn, starts with a female confirmed drunkard. In six generations of her descendants, totaling 800 people, Poellman found 102 professional beggars, 107 illegitimates, 181 prostitutes, 54 in almshouse, 76 convicted of serious crime, 7 of murder, and costing some $1,206,000. Or we might cite the so-called _Tribe of Ishmael_, the progeny of a neurotic man and a half-breed woman. They have spread their ill-favored spawn over various of the central states in a veritable flood of imbecility and petty crime. And to these families may be added the records of _The Hill Folk_, _The Pineys_, or others of the several recent studies of degenerate strains. All bear the same message of rapidly multiplying degeneracy. =Intensification of Defects by Inbreeding.--=Most of these regional surveys that are now in progress show that there is particular danger in a population becoming broken up into small communities and isolated. Under such conditions there is a pronounced tendency to intermarry, and if deterioration is already present in the stock such communities become centers of marked degeneracy. The situation is well exemplified in the following excerpt from Davenport: "I have been going over the records of one family in New York, the so-called Nam family. There were 55 per cent. consanguineous matings, marriage between cousins, in one generation, and, owing to the fact that the strain was already loaded with defects, we can see how these defects were concentrated by these cousin marriages, so that about 90 per cent. of the strain is feeble-minded. There were fully 90 per cent. of the men who are unable to resist the lure of liquor. One-fourth of the children are born illegitimates. Infanticides, incest, murder, harlotry, are all over the chart. This is a highly inbred community, keeping a nearly pure strain of social defects, and the cost to the community has been a million and a half on a fair way of figuring, not directly in the care, but indirectly in the damage they have done. These constitute a rural community. Out of this community we can trace those who have gone to the cities and become murderers, prostitutes and thieves. They are not confined to one state; they spread out over the country. One branch of the family came to the state of Minnesota. We sent to one of Doctor Rogers' trained field workers to learn whether she had ever heard of this family, and received a reply that the family was well known to social workers in the state of Minnesota. These strains of degenerates are not local matters at all; they are matters of national interest."