This grouping shows the curious gradation observed in these visions. First of all, disorderly and illogical activity as in dreams; then, more orderly activity: knowledge of forgotten facts, knowledge of past events unknown to the sensitive, knowledge of present events unknown to the sensitive, apparent prescience. I will give some examples. _A._ Imagination—images are by far the most frequent. This phenomenon is analogous to ordinary visual hallucination, and seems to me to present the characteristic features of dream. This is hardly the place to discuss the state of consciousness during dream; for the form I am giving my recital would not bear any long psychological analyses. I will simply confine myself to resuming the conclusions of the detailed analysis, which I made in a work dealing with this subject. The consciousness which works habitually in us, that which is manifested in our everyday life, is the _personal consciousness_. It is around this that are grouped the souvenirs accessible to our normal personality, to that part of ourselves which we call ‘I.’ This _personal consciousness_ asserts itself in the highest acts of the psychic life, in the comparison of images one with another, in abstraction, judgment, and the voluntary selection of acts, which appear to us equally possible. This selection is the expression of our voluntary activity, personally conscious; it is determined by the comparison of acts between themselves, by the examination of their probable advantageous or disadvantageous consequences, by the appreciation of their morality or immorality, according to the social laws of the day, etc. Personal consciousness is the foundation of all our intelligent life; practically, it alone appears to exist, and its disappearance seems to us to annihilate our own personality. In reality, such is not the case. With certain invalids, complete or partial modifications of the personal consciousness may be observed. Sometimes the notion of personality disappears. There are patients who suddenly forget everything, even to their own name. All their antecedent life is effaced, and they appear to return to the state they were in at birth. They have to learn again how to speak, to eat, and to dress themselves. Sometimes the amnesia is not so complete. I have been able to observe a patient, who had forgotten everything which had any connection whatever with his own personality. He was absolutely ignorant of all he had ever done, did not remember where he was born, who his parents were, or what his name was. He was thirty years of age. Organic memory and memories organised apart from the personality subsisted. He could read, write, draw, and displayed a certain amount of musical talent. Amnesia, with him, was limited to all facts connected with his antecedent personality; it presented the type of systematised losses of memory. This is what is called in medical phraseology _amnésie de dépersonnalisation_.