The following case is unusually interesting, chiefly by virtue of its long duration—almost seventeen years; the presence of a clinical picture commonly associated with dementia; the eventual recovery. The first two features, namely, the duration and the symptom complex, are difficult to explain when viewed in the light of the unexpected and favorable outcome. The possibility of a retrospective diagnosis is also to be considered.
The clinical history is based on the case notes, which are to some extent supplemented and amplified by personal recollections of various members of the patient's family and of the nurse who attended her during many years of her illness.
REPORT OF CASE
—A. R., a woman aged 41, of American parentage, was admitted to the hospital in 1897, in her twenty-fourth year. She was the youngest of seven children. Her oldest sister died insane. The mother, brothers, sisters and the patient herself