IL TRAUMATIC INSANITY. - G enerally speaking, insanity is not developed for some months or even years after receipt of the injury, but in the interval the patient suffers from headache, more especially after mental effort, irascibility of temper, confusion of thought, and consequent inaptitude for business, weakened memory, and a constant feeling of fatigue. If this condition is not overcome, a progressive dementia sets in, of which the special character is violence of temper, and a tendency to impulsive action. This dementia is generally complicated with maniacal attacks intervening at uncertain periods and marked by furor or violence. Dipsomania or insane drinking is a not very uncommon result, apart from all other indications of aberration. Prognosis is unfavourable.

III. INSANITY ASSOCIATED WITH OTHER NEUROSES.- Epileptic Insanity. - In the intervals between the fits tire patient is generally stupid and dull of apprehension. Immediately- before or after fits, or, as some believe, occasionally taking their place, mania of a violent and furious, of a subacute, or of an ecstatic character presents itself. All authorities recognize epileptic insanity as the form most dangerous to the public. Prognosis is unfavourable. Hysterical Insanity. - The symptoms described in the article HYSTERIA may become so exacerbated as to amount to insanity. Superadded to these may be delusions of a sexual nature. The most extreme form of mental disturbance supervening on hysteria, is acute mania of a very violent character ; it is generally of a delirious nature, but does not usually continue for any great length of time. It is open to question whether the " fasting girls " and women with " stigmata " should not be included among the hysterically insane. Men, although very rarely, are liable to this form cf insanity. In a sense the prognosis is favourable, inasmuch as prolonged treatment procures great abatement of symptoms, if not actual recovery. Insanity occurring with locomotor ataxy strongly resembles general paralysis. Taken over all, it may be stated that the symptoms differ more in degree than in kind, not being so intense. There is not the same extravagance of delusion or violence of mania.