A young officer, home on a short leave of absence, asked me to see his mother-in-law who, in spite of the happiest circumstances, was embittering her own and her people's existence by a senseless idea. I am introduced to a well preserved lady of fifty-three with pleasant, simple manners, who gives the following account without any hesitation: She is most happily married and lives in the country with her husband, who operates a large factory. She cannot say enough for the kind thoughtfulness of her husband. They had married for love thirty years ago, and since then there had never been a shadow, a quarrel or cause for jealousy. Now, even though her two children are well married, the husband and father does not yet want to retire, from a feeling of duty. A year ago there happened the incredible thing, incomprehensible to herself as well. She gave complete credence to an anonymous letter which accused her excellent husband of having an affair with a young girl--and since then her happiness is destroyed. The more detailed circumstances were somewhat as follows: She had a chambermaid with whom she had perhaps too often discussed intimate matters. This girl pursued another young woman with positively malicious enmity because the latter had progressed so much further in life, despite the fact that she was of no better origin. Instead of going into domestic service, the girl had obtained a business training, had entered the factory and in consequence of the short-handedness due to the drafting of the clerks into the army had advanced to a good position. She now lives in the factory itself, meets all the gentlemen socially, and is even addressed as "Miss." The girl who had remained behind in life was of course ready to speak all possible evil of her one-time schoolmate. One day our patient and her chambermaid were talking of an old gentleman who had been visiting at the house, and of whom it was known that he did not live with his wife, but kept another woman as his mistress. She does not know how it happened that she suddenly remarked, "That would be the most awful thing that could happen to me, if I should ever hear that my good husband also had a mistress." The next day she received an anonymous letter through the mail which, in a disguised handwriting, carried this very communication which she had conjured up. She concluded--it seems justifiably--that the letter was the handiwork of her malignant chambermaid, for the letter named as the husband's mistress the self-same woman whom the maid persecuted with her hatred. Our patient, in spite of the fact that she immediately saw through the intrigue and had seen enough in her town to know how little credence such cowardly denunciations deserve, was nevertheless at once prostrated by the letter. She became dreadfully excited and promptly sent for her husband in order to heap the bitterest reproaches upon him. Her husband laughingly denied the accusation and did the best that could be done. He