associated emotional idea, for example, the patient may speak of a near relative as dying recently, yet with no show of emotion, even with a meaningless laugh. This dissociation may ultimately result in complete incoherence, in which no sense can be found whatsoever in his speech. Emotional indifference is noticeable early and sluggishness of reactions to stimuli, even failure of such reactions; the patient will neglect himself, stay away from meals, express no desires and make no complaints. In the earlier stages, however, the patient who may have been for some little time apathetic, suddenly without apparent cause becomes angry, noisy, and possibly violent and destructive, again gradually relapsing into his quiet, apathetic state. The thought content is commonly associated with delusions, that is obviously false ideas, but which the patient is unable to perceive are false. Delusions of persecution are most common, the patient feeling in a dim way that everything is not right; and in attempting to explain to himself the reason, often attributes causes to people or forces outside of himself, and on account of the feeling of bodily discomfort, also by reason of the depression, he explains the external forces as unfriendly to himself. Hallucinations may be present and furnish the material around which the delusions form; on the other hand hallucinations may result from the delusions. By hallucination is meant a false sense perception, as the patient may state he sees someone before him who is not there, or that he hears voices from individuals who are not around him; he may also complain of receiving electrical shocks, or wireless messages, which he usually states come from his persecutors. Symptoms of this nature form a good example of the so-called split personality, or “schizophrenia,” wherein certain idea complexes are split off from the main personality and address themselves to the main portion, the patient attributing these noises (voices), sensations (visceral and tactile), tastes and smells to an objective rather than a subjective source and subsequently forming delusions. However, unless we are dealing with the paranoid form the delusions are fragmentary, transient and absurd. =Hebephrenia.=—This is a progressing mental enfeeblement, terminating usually in deterioration, and without showing marked peculiarities in thought or action aside from the progressing deficiency. The patient appears in general inactive, lacking in energy and ambition, indifferent, depressed, incapable of much concentration and hence the efficiency becomes progressively impaired until he is unable to accomplish anything. From time to time there may be periods of confusion, depression, passivity, at other times periods of excitement.