The clinical observations which I am about to report, although rare, take on a definite importance when one considers the gravity of the complications of epidemic meningitis. It has been known for some time that a statistical study of any one epidemic, no matter how large a number of cases has been observed, will not give a true picture of the incidence of the complications. The geographic location, the severity of the epidemic, the type of organism and many other factors are involved, which are so variable that one cannot draw accurate conclusions. This is especially evident when one considers the literature. Epidemic meningitis appears to be on the increase throughout the United States. Weed and Wegefarth1 in 1914-1915 by their work on the relation of the spinal fluid and the intra-ocular fluids showed conclusively that a certain balance is maintained and that when this balance is disturbed