The following case is presented on account of its peculiar interest from an etiologic standpoint, as well as its uniqueness and rarity.
F. T., a jockey, aged 21, on March 15, 1899, was exercising a horse under a shed when the animal reared, throwing the rider against the rafters, and striking his head with such violence that he was thrown to the ground. He was unconscious for only a short time. Dr. J. M. Allen saw him shortly after the accident, and reports that there was a large contusion of the scalp covering the top of the head, and this was rapidly followed by edema extending down to both ears, more marked on the right side. He complained of great noise in his right ear, and deafness, and was very restless. There was no hemorrhage from the nose or ear, though the patient says he "spit up a few mouthfuls