As a distant effect of tumor of the brain and other intracranial disorders, there may be herniations of the brain into all possible openings into which cerebral tissue may be molded, as illustrated in the well known cases of bulging of the third ventricle, a pressure cone at the foramen magnum and minor cortical protrusions at the location of the arachnoid villi. Herniations which have received less emphasis in the literature are those of the fornicate gyrus under the free edge of the falx cerebri and of the uncus and subiculum of the cornu ammonis under the free edge of the tentorium. These were described by Meyer1 in 1920. Without reference to the work of Meyer, Vincent and his co-workers2 described herniation of the uncus as a temporal pressure cone. In this article, the authors said that they first described the lesion in 1930 before the Société de