2.3 per cent for the Vermont State Hospital (1917 and 1918), 1.5 per cent for the Central State Hospital, Virginia (1919), 2.5 per cent for the Columbia State Hospital (South Carolina) (1918), and a period of two years at the Spencer State Hospital, West Virginia (1917 and 1918) with 262 admissions and no cases of general paresis. Of 2,895 first admissions reported by the Ohio state hospitals for the year ending June 30, 1920, 438, or 15.12 per cent, were cases of general paresis. It is interesting, at least, to note that Letelier[181] showed an admission rate for this disease of seven per cent at the Casa de Orates at Santiago, Chili. CHAPTER V THE PSYCHOSES WITH CEREBRAL SYPHILIS The indications are at the present time that the psychiatry of the future will not deal with a consideration of general paralysis and cerebral syphilis, as such, but will differentiate preferably between parenchymatous and interstitial, or mesoblastic, syphilitic processes of the nervous system. The retention of the designation general paresis is little, if anything, more than a concession to the claims of tradition. Cerebral syphilis may be said in a general way at this time to include all syphilitic involvements of the brain other than general paresis, which must be accorded the precedence due to priority of recognition if nothing else. In the light of our present knowledge we may speak in rather definite terms in considering cerebral syphilis from the standpoint of pathology. On an anatomical basis it is usually divided into three forms,—the meningitic, the endarteritic and the gummatous types. It is, of course, not to be understood that these represent separate and distinct processes. Combined forms are nearly always to be expected and the different types practically always coexist more or less. The onset of the disease may be expected anywhere from one to ten or even fifteen years from the date of the initial lesion. The early appearance of cerebral symptoms would indicate brain syphilis as a general rule rather than general paresis. Oppenheim[182] in his second edition says that cerebral syphilis often develops within a year after infection, a majority of the cases being noted within two years. He finds it a very rare occurrence after ten years. "Because," as Barker[183] puts it, "of the lawlessness of the occurrence of syphilitic lesions in the central nervous system, all clinical classifications of these cases are based only on the predominance of certain associations of lesions." Certainly the pathology of the disease is quite varied in its manifestations.