This abstract of a candidate's thesis presented for membership in the American Ophthalmological Society, includes the reports of cases, a general review of the literature of the subject, the results of experiments, and histologic observations on the effect of extirpation of the cervical sympathetic in the rab'bit, the conclusions reached from the investigation, and a bibliography. P. P. CALHOUN Primary.. Acquired submit the following as a working basis of study: { Heredity. Sympathetic paralysis. Cyclitis and cataract. With [-Sympathetic paror J alysis. without T Cyclitis or Calais ract. Injuries. Sidero-{ [" sis bulbi. J Uveal infection-] Myopia. I Glaucoma.