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182, that the majority of my hearers do not belong to the medical profession. Now do not fear that a medical education is necessary to follow what I shall have to say. We shall now accompany the doctors a little way, but soon we shall take leave of them and follow Dr. Breuer on a way which is quite his own.

Dr. Breuer 's patient was a girl of twenty-one, of a high degree of intelligence. She had developed in the course of her two years' illness a series of physical and mental disturbances which well deserved to be taken seriously. She had a severe paralysis of both right extremities, with anasthesia, and at times the same affection of the members of the left side of the body; disturbance of eye-movements, and much impairment of vision; difficulty in maintaining the position of the head, an intense Tussis nervosa, nausea when she attempted to take nourishment, and at one time for several weeks a loss of the power to drink, in spite of tormenting thirst. Her power of speech was also diminished, and this progressed so far that she could neither speak nor understand her mother tongue; and, finally, she was subject to states of "absence," of confusion, delirium, alteration of her whole personality. These states will later claim our attention.

When one hears of such a case, one does not need to be a physician to incline to the opinion that we are concerned here with a serious injury, probably of the brain, for which there is little hope of cure and which will probably lead to the early death of the patient. The doctors will tell us, however, that in one type of cases with just as unfavorable symptoms, another, far more favorable, opinion is justified. When one finds such a series of symptoms in the case of a young girl, whose vital organs (heart, kidneys), are shown by objective tests to be normal, but who has suffered from strong emotional disturbances, and when the symptoms differ in certain finer characteristics from what one might logically expect, in a case like this the doctors are not too much disturbed. They consider that there is present no organic lesion of the brain, but that enigmatical state, known since the time of the Greek physicians as hysteria, which can simulate a whole series of symptoms of various diseases. They consider in such a case that the life of the patient is not in danger and that a restoration to health will probably come about of itself. The differentiation of such an hysteria from a severe organic lesion is not always very easy. But we do not need to know how a differential diagnosis of this kind is made; you may be sure that the case of Breuer's patient was such that no skillful physician could fail to diagnose an hysteria. We may also add a word here from the history of the case. The illness first appeared while the