Yet, can psychoanalysis do more at this point? Indeed yes! I hope to show you that even in so inaccessible a case as this it can discover something which makes the further understanding possible. May I ask you first to note the apparently insignificant fact that the patient actually provoked the anonymous letter which now supports her delusion. The day before, she announces to the intriguing chambermaid that if her husband were to have an affair with a young girl it would be the worst misfortune that could befall her. By so doing she really gave the maid the idea of sending her the anonymous letter. The obsession thus attains a certain independence from the letter; it existed in the patient beforehand--perhaps as a dread; or was it a wish? Consider, moreover, these additional details yielded by an analysis of only two hours. The patient was indeed most helpful when, after telling her story, she was urged to communicate her further thoughts, ideas and recollections. She declared that nothing came to her mind, that she had already told everything. After two hours the undertaking had really to be given up because she announced that she already felt cured and was sure that the morbid idea would not return. Of course, she said this because of this resistance and her fear of continuing the analysis. In these two hours, however, she had let fall certain remarks which made possible definite interpretation, indeed made it incontestable; and this interpretation throws a clear light on the origin of her obsession of jealousy. Namely, she herself was very much infatuated with a certain young man, the very same son-in-law upon whose urging she had come to consult me professionally. She knew nothing of this infatuation, or at least only a very little. Because of the existing relationship, it was very easy for this infatuation to masquerade under the guise of harmless tenderness. With all our further experience it is not difficult to feel our way toward an understanding of the psychic life of this honest woman and good mother. Such an infatuation, a monstrous, impossible thing, could not be allowed to become conscious. But it continued to exist and unconsciously exerted a heavy pressure. Something had to happen, some sort of relief had to be found and the mechanism of displacement which so constantly takes part in the origin of obsessional jealousy offered the most immediate mitigation. If not only she, old woman that she was, was in love with a young man but if also her old husband had an affair with a young girl, then she would be freed from the voice of her conscience which accused her of infidelity. The phantasy of her husband's infidelity was thus like a cooling salve on her burning wound. Of her own love she never became conscious, but the reflection of it, which would bring her such advantages, now became compulsive, obsessional and conscious. Naturally all arguments directed against the obsession were of no avail since they were directed only to the