It may be suggested that these are functions which properly belong to the medical profession exclusively. A little reflection will, however, be sufficient to show that this is not the case. Efforts have been made for years to prevent the spread of venereal disease. Attempts were made to accomplish this by legislative enactment. That these methods of control have been ineffectual is now well known to everyone. Continental governments have for a long while been trying to regulate prostitution by police supervision and frequent medical inspections. The percentage of venereal disease has, however, not been appreciably reduced by this plan and it has been repeatedly condemned by vice commissions as a result of official investigations. It may be stated now, I think, without fear of contradiction that this is a matter which must be regulated by educating the public and which can be handled in no other way. It is a well known fact that no law can be enforced unless it meets with public approval. The will of the majority rules. When the effects of venereal disease are generally recognized there will no longer be a necessity for much legislation on the subject. This is a question of far-reaching importance. When it is recalled that twelve per cent of the cases admitted to our hospitals for mental diseases are suffering from general paresis or cerebral syphilis, the necessity of a more general understanding of these conditions is readily apparent. The percentage is much higher in the densely populated metropolitan districts. Legislative restrictions in the past were never very successful in limiting the use of alcoholic beverages. It is true that the Eighteenth Amendment to the Constitution of the United States and the Volstead Act have had a very material effect on the number of cases of alcoholism admitted to our institutions. The influences which resulted in alcoholism, however, will find an outlet in some other direction unless they are modified in some way. This again is largely a matter of education. There never was a time in the history of the country when a knowledge of the effect of drugs of various kinds on the nervous system was as important as it is today.