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In 1909 Horsley1described a method of excision of an area of motor cortex for the relief of violent athetoid and convulsive movements of an upper extremity. This consisted in splitting the pia lengthwise over the center of the convolution to be partially excised, gradually pushing the pia back to the extreme edge of the sulcus on either side, and then removing the necessary amount of the convolution. In 1935 Sachs2reported experiences with this subpial resection of the cortex in the treatment of focal epilepsy and athetosis. The actual procedure he called the Horsley operation. Since that time there have been other cases in which it was thought that the procedure was indicated and, having found it to be of definite value, I am making this report. In the paper2mentioned, eleven cases in which this operation had been done were reported. Two of the patients

As a result of his observations of herpes, plus reports of sensory change and pain accompanying the peripheral type of facial palsy, Hunt1first described what he called geniculate neuralgia. He drew a close parallel between the sensory and motor systems of the fifth and seventh cranial nerves and described a "geniculate zone" affected by pain or herpes, stating that in this condition the primary disorder was in the geniculate ganglion. He described this so-called "geniculate zone" as lying within a cone shaped area represented by the tympanic membrane, the walls of the auditory canal, the external meatus, the concha, the tragus, the antitragus and the antihelix. He said, however, that the ninth and tenth cranial nerves were also represented in this area. In 1909 Clark and Taylor2reported a case of tic douloureux of the sensory filaments of the facial nerve: A woman aged 28 had for