In some such cases one can trace the connection to some primary disease, (traumatic injuries to the cranium, abscess of the diplöe or sinus, parasites in the sinus, otitis, or pharyngeal disease) which serve as an indication of the true state of things. In others there may be circumscribed local manifestations, (anæsthesia, hyperæsthesia, hemiplegia, paralysis of special muscular groups, or spasms of the same ) which may indicate more or less accurately the exact seat of the lesion. When well defined, this localization of the resultant phenomena, serves to distinguish this and other local lesions, from meningitis which is apt to be much more general in its diffusion. In the carnivora and omnivora vomiting is a marked symptom. _Treatment_ of brain abscess is usually hopeless, yet the attendant inflammation may be met as in other cases of meningitis. If the seat of abscess can be ascertained surgical interference is fully warranted. TUBERCULAR MENINGITIS. Little seen in cattle. Acute and chronic cases. Miliary tubercles in pia. Hydrocephalus. Progresses slowly. Irritability, hyperæsthesia, photophobia, congested conjunctiva, grinding teeth, spasms, squinting, dilated pupils, congested disc, drowsiness, stupor, coma, palsy. Tubercle of the encephalon has been little noticed in the lower animals, partly because it is especially a disease of early life, while animals usually contract tubercle later in life, and partly because subjective symptoms are inappreciable, and the cranium is seldom opened in post mortem examinations. As the affection usually appears as a secondary deposit, the tubercles elsewhere go a long way toward identifying the nature of the disease in the brain. It has usually been found consecutive to pulmonary tuberculosis. In a case reported by Fischœder as seen at the Bromberg abattoir, in a 350 lbs. calf, the animal had shown weakness, stupor and a tendency to fall toward the right. The brain lesions consisted of small foci of tubercle on the posterior pillars of the fornix (trigone) and adjacent parts. The left eye had on its inner aspect, near the junction of sclerotic and cornea, a firm mass with tubercular centres, extending inward as far as the retina. The bronchial mediastinal, prepectoral, brachial and precrural glands were tuberculous. In a case in a cow reported by Lesage there were unsteady gait, impaired vision, and great timidity. Necropsy showed a suboccipital tubercle extending into the frontal sinus and cranium, and invading the brain near the parietal lobe for more than an inch. There were retro-pharyngeal and pleural tubercles as well.