It was a bitter, cold day in February and about eleven in the morning when the field worker knocked at the door. Used as she was to sights of misery and degradation, she was hardly prepared for the spectacle within. The father, a strong, healthy, broad-shouldered man, was sitting helplessly in a corner. The mother, a pretty woman still, with remnants of ragged garments drawn about her, sat in a chair, the picture of despondency. Three children, scantily clad and with shoes that would barely hold together, stood about with drooping jaws and the unmistakable look of the feeble-minded. Another child, neither more intelligent nor better clad, was attempting to wash a few greasy dishes in cold water. The deaf boy was nowhere to be seen. On being urgently requested, the mother went out of the room to get him, for he was not yet out of bed. In a few moments she returned. The boy with her wore an old suit that evidently was made to do service by night as well as by day. A glance sufficed to establish his mentality, which was low. The whole family was a living demonstration of the futility of trying to make desirable citizens from defective stock through making and enforcing compulsory education laws. Here were children who seldom went to school because they seldom had shoes, but when they went, had neither will nor power to learn anything out of books. The father himself, though strong and vigorous, showed by his face that he had only a child’s mentality. The mother in her filth and rags was also a child. In this house of abject poverty, only one sure prospect was ahead, that it would produce more feeble-minded children with which to clog the wheels of human progress. The laws of the country will not permit children ten years old to marry. Why should they permit it when the mentality is only ten? These and similar questions kept ringing through the field worker’s mind as she made her way laboriously over the frozen road to the station. Early in the course of this investigation, it had been learned that the father of Deborah’s mother had come, when a young man, to the prosperous rural community where his daughter was living at the time of our investigation. The informant could not say whence he had come, but the name of a person was given who was supposed to know. Many fruitless attempts to find this person were made before the object was attained. When at last discovered, she turned out to be an elderly lady of refinement and culture. Strangely enough, long afterwards it was learned that she was connected with the good side of the Kallikak family, but was all unconscious of the relationship which existed between it and the degenerate branch. She was delighted to go back in memory and recall impressions made on her mind in youth.