=Dreams and somnambulisms=.—Many people remember their dreams poorly or not at all, and, in the latter case, are under the belief that they do not dream. But often circumstantial evidence, such as talking in their sleep, shows that they do dream. Now, though ordinarily they cannot remember the dreams, by changing the waking state to an hypnotic one, or through the device of crystal visions or automatic writing, it is possible in some people to reproduce the whole dream. Amnesia for dreams, therefore, cannot be taken as evidence that they do not occur, and forgotten dream consciousness is subject to the same principles of conservation and reproduction as the experiences of waking life. Thus in B. C. A. dreams totally forgotten on awakening are easily recovered in hypnosis and in crystal visions.[30] In the case of M——l, which I cited to you a little while ago, the forgotten dream in which he lived over again the original episode which led to the development of his hysterical condition and which when repeated in the dream induced each successive attack, was easily recovered in hypnosis. The same was true of the forgotten dreams of Mrs. H. and Miss B. The reproduction of nocturnal somnambulistic acts and the ideas which occupied the content of consciousness of the somnambulist can be effected in the same manner. I have quite a collection of observation of this kind. In the study of visions,[31] to which I have already referred, may be found the observation where Miss B., looking into a crystal, sees herself walking in her sleep and hiding some money under a tablecloth and books lying on the table. The money (which was supposed to have been lost) was found where it was seen in the vision. In my notebook are the records of numerous artificial hallucinations of this kind which reproduce sleep-walking acts of B. C. A. To cite one instance: in the crystal she sees herself arise from her bed, turn on the lights, descend the stairs, enter one of the lower rooms, sit by the fire in deep, pensive reflection, then get up and dance merrily as her somnambulistic mood changes. Presently, as the cinematograph-like picture unfolds itself in the crystal, she sees herself go to the writing table, write two letters, ascend the stairs, dropping one letter on the way,[32] reënter her room, open a glove box, place the remaining letter under the gloves, and finally put out the lights and get into bed when, with the advent of sleep, the vision ends. In the vision the changing expression of her face displays each successive mood. In hypnosis also the scene is remembered and then even the thoughts which accompanied each act of the somnambulist are described. Here again, then, we have evidence that even forgotten dreams and somnambulistic thoughts are not lost but under certain special conditions can be revived in one mode or another. II. Forgotten Experiences of Artificial and Pathological States