dissociated states he has never made the attempt to find the dynamic explanation for these phenomena. For, had he done so, he surely would have discovered that the repression and the resistance produced thereby "is quite as well the cause of this dissociation as of the amnesia for its psychic content."
That the dream is as little forgotten as the other psychic acts, and that it clings to memory just as firmly as the other psychic activities was demonstrated to me by an experiment which I was able to make while compiling this manuscript. I have kept in my notes many dreams of my own which, for some reason at the time I could analyse only imperfectly or not at all. In order to get material to illustrate my assertions, I attempted to subject some of them to analysis from one to two years later. I succeeded in this attempt without any exception. Indeed, I may even state that the interpretation went more easily at this later time than at the time when the dreams were recent occurrences. As a possible explanation for this fact, I would say that I had gotten over some of the resistances which disturbed me at the time of dreaming. In such subsequent interpretations I have compared the past results in dream thoughts with the present, which have usually been more abundant, and have invariably found the past results falling under the present without change. I have, however, soon put an end to my surprise by recalling that I have long been accustomed to interpret dreams from former years which have occasionally been related to me by patients as if they were dreams of the night before, with the same method and the same success. I shall report two examples of such delayed dream interpretations in the discussion of anxiety dreams. When I instituted this experiment for the first time, I justly expected that the dream would behave in this respect like a neurotic symptom. For when I treat a neurotic, perhaps an hysteric, by psychoanalysis, I am compelled to find explanations for the first symptoms of the disease which have long been forgotten, just as for those still existing which have brought the patient to me; and I find the former problem easier to solve than the more exigent one of to-day. In the Studien über Hysterie, published as early as 1895, I was able to report the explanation of a first
