And one thing more! Have you not observed how this insignificant compulsive act initiated us into the intimate life of the invalid? A woman can scarcely relate anything more intimate than the story of her bridal night, and is it without further significance that we just happened to come on the intimacies of her sexual life? It might of course be the result of the selection I have made in this instance. Let us not judge too quickly and turn our attention to the second instance, one of an entirely different kind, a sample of a frequently occurring variety, namely, the sleep ritual. A nineteen-year old, well-developed, gifted girl, an only child, who was superior to her parents in education and intellectual activity, had been wild and mischievous in her childhood, but has become very nervous during the last years without any apparent outward cause. She is especially irritable with her mother, always discontented, depressed, has a tendency toward indecision and doubt, and is finally forced to confess that she can no longer walk alone on public squares or wide thoroughfares. We shall not consider at length her complicated condition, which requires at least two diagnoses--agoraphobia and compulsion neurosis. We will dwell only upon the fact that this girl has also developed a sleep ritual, under which she allows her parents to suffer much discomfort. In a certain sense, we may say that every normal person has a sleep ritual, in other words that he insists on certain conditions, the absence of which hinders him from falling asleep; he has created certain observances by which he bridges the transition from waking to sleeping and these he repeats every evening in the same manner. But everything that the healthy person demands in order to obtain sleep is easily understandable and, above all, when external conditions necessitate a change, he adapts himself easily and without loss of time. But the pathological ritual is rigid, it persists by virtue of the greatest sacrifices, it also masks itself with a reasonable justification and seems, in the light of superficial observation, to differ from the normal only by exaggerated pedantry. But under closer observation we notice that the mask is transparent, for the ritual covers intentions that go far beyond this reasonable justification, and other intentions as well that are in direct contradiction to this reasonable justification. Our patient cites as the motive of her nightly precautions that she must have quiet in order to sleep; therefore she excludes all sources of noise. To accomplish this, she does two things: the large clock in her room is stopped, all other clocks are removed; not even the wrist watch on her night-table is suffered to remain. Flowerpots and vases are placed on her desk so that they cannot fall down during the night, and in breaking disturb her sleep. She knows that these precautions are scarcely justifiable for the