The want of success in the treatment of epilepsy arises from a variety of causes. First, from the speculative character of it, of the pathogenesis of the disease, from the want of careful study of individual cases and the failure to differentiate the various forms, such as the primary essential, the toxic, the traumatic, the accidental, etc., and from the further fact that there is soon established in the epileptic a habit, and this once established is not destroyed by the simple removal of the originating cause of the disease. Not only must the cause be removed, but the habit must be broken up; and then, again, there is present in every epileptic a peculiar mental state characterized by a want of stability, and it is extremely difficult to have him follow any line of treatment long enough and systematically enough to bring about a cure. His tendency is always