_Symptoms in_ =Dogs=. These are described as some aberration of the senses, which gradually merges into stupor, coma and paralysis. While the animal is able to keep on his feet he sways and staggers, runs unconsciously against objects, or walks in a circle. There is heat of the head, injected eyes, sometimes drawn back or squinting, oposthotonos, and general spasms occurring in paroxysms. The duration of the disease is about the same as in the horse. _Differential Diagnosis._ From other forms of meningitis this is easily distinguished. Fulminant cases almost all belong to this type, the fact of the coincident implication of brain and spinal cord is strongly suggestive of this form, and the occurrence of many cases at once, without any demonstrable toxic or thermic cause, is tolerably conclusive. From tetanus there is this added distinction, that the disease does not set in so slowly, the spasms of the neck and back are not so persistent, and stupor sets in early, in a way that is unknown in lockjaw. Rabies is recognized by the slow onset, the characteristic prodromata, the mischevious disposition, the depraved appetite, and by the history of its local prevalence. Tubercular meningitis in cattle has a similar association with tuberculous animals in the same family or herd, and often by the local indications of tubercle elsewhere, emaciation, unthriftiness, cough, flocculent and gritty nasal discharge, enlarged lymph glands, pharyngitis, mammary disease. _Treatment._ With a disease so fatal _prevention_ should be the first consideration and especially when it appears in an enzootic form. Even in the absence of a definite knowledge of its germ or toxin, it is logical to avoid the locality, condition, food or water by which such germ or toxin has presumably entered the system, together with every unhygienic condition, which may have reduced the resistance of the system and laid it open to the attack. The animals should be removed to a clean, airy, building and the old one should be thoroughly emptied, purified and whitewashed, the lime-wash containing 4 ozs. of chloride of lime, or 1 dr. of mercuric chloride to the gallon. Drains and gutters should have special attention and the animals should not be returned until the stable is thoroughly dry. A change of feed is imperative when there is any suggestion of damp, mustiness or fermentation, and even in the absence of such indications, since the ferments and their products may still be present in a dried condition. It should also be an object to correct any morbid or pyogenic condition of the pharynx, Eustachian pouch, nose or ear, by appropriate measures and the inhalation of sulphurous acid or chlorine may be resorted to with advantage.