Inflammation of the Dura Mater.

THE inflammation of this membrane does not often occur spontaneously; but it happens frequently from external injuries, as blows upon the head.
After a blow upon the head which stuns him, a man may recover himself, and for some days remain in perfect health. Then be has pain in the head, is restless, cannot sleep, has a flushed face, red eyes, hot skin, hard pulse, rigor, nausea, vomiting, ending with convulsions and delirium.
This disease is often caused by what is called otitis, or inflammation of the internal ear. In such cases, inflammation will arise within the tympanum, causing intense earache; matter comes at length from the external ear, but the pain does not stop; the patient shivers, becomes drowsy, perhaps delirious, and finally sinks into stupor. The dura mater is inflamed.

Treatment. Inflammation of the dura mater, when caused by fracture, penetrating wounds, et cetera, of the skull, calls for surgical treatment.