The disturbances of the nervous system were divided into those {65} dependent upon gross organic alterations of the nervous centres and their envelopes, and those not so related, but which we commonly speak of as functional. Were it possible generally--which it is not--to diagnosticate rheumatic meningitis from the merely functional form of so-called cerebral rheumatism, then its treatment would resolve itself into a vigorous use of the anti-rheumatic remedies, salicylates, alkalies, etc., and the active employment of ice and leeches to the scalp, purgatives, full doses of the iodide and bromide of potassium, ergot, etc. If, together with the symptoms of that often obscure and comparatively rare complication of rheumatic fever, ulcerative endocarditis, there occurred severe headache, delirium, or paralysis, we might find great difficulty in determining the cause of the cerebral disturbance, and would naturally vary our measures according as we suspected meningitis, embolism, or simple functional disturbance, and the treatment adapted to these several conditions will be found under their respective heads in this work. Coming now to the functional disturbances of the nervous centres, which are the ordinary forms met with in acute articular rheumatism, they may be divided, for therapeutical reasons, into two groups: (1) Those unattended by hyperpyrexia, and (2) those preceded, accompanied, or followed by hyperpyrexia. (1) When any sign of disturbance of the nervous system, delirium, restlessness, taciturnity or talkativeness, insomnia or somnolence, deafness, tremulousness, vacancy, stupor, or what not, occurs in rheumatism with but a moderate temperature, 101° to 103°, while we anxiously watch the temperature from hour to hour, prepared to combat any tendency to hyperthermia the moment it is discovered, we endeavor to control the cerebral disturbance as in other febrile affections, but with greater diligence, knowing that in this disease these nervous symptoms very often precede hyperpyrexia. We persist with the salicylates to reduce the rheumatic element of the affection, employ remedies to control the cardiac or pulmonary inflammations which are so frequent in such circumstances, sustain the general powers by food, wine, and quinia, if, as frequently happens, there are evidences of failing strength, and meet any other special indication that may arise. For example, we procure sleep and allay motor and mental excitement by opium or chloral and by evaporating lotions or the ice-cap to the head. We reduce temperature, allay restlessness, preserve the strength, and promote sleep by lightening the bed-clothes, drying frequently the entire surface of the body if it is perspiring freely, or by sponging it with tepid water hourly if dry and hot. We act on the kidneys, bowels, and if necessary the skin, if from the scantiness of the urine or other evidence we suspect uræmia. Should these means fail and the