A young man deserted his wife and three children and eloped with an eighteen-year-old girl who had made his acquaintance in a street car flirtation. He had been "an obedient boy with good principles," and his later record showed steadiness and ability; but he and his wife had been drifting apart--their marital relations had not been "quite the same" as formerly. Arrested and brought back, he did not impute any blame to her, however, but said he "must have been crazy." In spite of the circumstances, the judge decided to give him six months in the penitentiary; and a man visitor from the family social agency interested began at once to try to secure an influence over him. On his release the couple again went to housekeeping. The wife had been cautioned on how to receive him; but things went badly at first, and the man began again insisting that they were mismated. (He "had the other girl still considerably on his conscience and heart.") Tangles continually arose which the society's visitor was hard put to it to straighten out. Once the wife found a letter from the girl; but finally, after the charity organization society in the city where he had left the girl reported that she was doing well and not breaking her heart about him, the man decided to "cut out" the correspondence. A little later the girl eliminated herself by marrying. A year after the reconciliation the wife told the friendly visitor that the trouble was gone between them, and "it was just like a new life." For another year efforts were continued to strengthen the attachment and make the home more attractive, at the end of which time it was felt that the home was stable enough to need no further supervision. For reasons of convenience we may include here the causal relations between venereal disease and desertion. In so far as syphilis brings about mental and physical deterioration, the relation between the two is obvious. The presence of the disease in the man, if known to his wife, may lead her to sever relations with him in self-protection, and this severance, in turn, may lead ultimately to desertion or complete separation. Often separation is desirable, but the syphilitic who is on the whole a good family man raises some of the most difficult questions with which the social worker has to deal. Whether to try to force him out of the home and thus make an unwilling deserter; whether to violate the diagnosis given in confidence by passing it on to the wife for her protection--these are only two of the puzzles that may arise.