According to Mendelian expectation, all of the children of Millard Kallikak and Althea Haight should have been feeble-minded, because the parents were such. The facts, so far as known, confirm this expectation, with the exception of the fourth child, a daughter, who was taken into a good family and grew up apparently a normal woman. She married a normal man and they had one son who was normal. He married a normal woman and they have two children, a boy and girl, who are normal and above average intelligence. The fifth child was Albert, feeble-minded, who died at twenty-five, unmarried. The sixth child was Warren, who had four children, three of whom were feeble-minded and of very doubtful morality. Each of the three had feeble-minded children. One of these, Guss by name, was specially loose and much mixed in his marital relations. [Illustration: RUINS OF MOUNTAIN HUT BUILT BY MARTIN KALLIKAK JR. 1805.] [Illustration: SITE OF MOUNTAIN HOME OF MILLARD KALLIKAK, WHERE FIFTEEN OF HIS CHILDREN WERE BORN.] The seventh child was Lavinia, who died unmarried at the age of thirty-nine. She had been brought up in a good family and never manifested any of those characteristics that indicate feeble-mindedness. The eighth was Cordelia, who died at nine; condition unknown. The ninth was Prince, who died at four years. The tenth was Paula, feeble-minded; married and had four children. Her husband and children are undetermined. Then comes Gregory, the eleventh, who was feeble-minded and alcoholic. He married an alcoholic and syphilitic woman, mentality difficult to determine. They had seven children, of whom two were feeble-minded, syphilitic, alcoholic, and sexually immoral. One died of delirium tremens, the other of alcoholism, leaving a long line of descendants. The other children died young, except one daughter who has a feeble-minded grandchild who cannot speak. The twelfth child was Harriet, feeble-minded, twice married, but without children. The thirteenth, Sanders, who was drowned as a young man, was feeble-minded and sexually immoral. The fourteenth was Thomas, feeble-minded, alcoholic, and sexually immoral. He died from over self-indulgence. He was married and had a daughter, but her condition as well as her mother’s is unknown. The last child was Joseph, feeble-minded. He married his first cousin, Eva Haight, who was also feeble-minded. They had five children, two dying in infancy, and the rest feeble-minded. Of their nineteen grandchildren, five died in infancy, one is undetermined, and the remaining thirteen are all feeble-minded. Millard Kallikak married for his second wife a normal woman, a sister of a man of prominence. She was, however, of marked peculiarity. By her, he had three children; two died in infancy. The one who grew to manhood was alcoholic and syphilitic. He ran off with the wife of his nephew, who was about his own age. His mental condition is undetermined. He was killed by an accident a few years later.