IV. GENERAL PARALYSIS 293 V. THE PSYCHOSES WITH CEREBRAL SYPHILIS 308 VI. THE PSYCHOSES WITH HUNTINGTON'S CHOREA, BRAIN TUMOR AND OTHER BRAIN OR NERVOUS DISEASES 323 VII. THE ALCOHOLIC PSYCHOSES 344 VIII. THE PSYCHOSES DUE TO DRUGS AND OTHER EXOGENOUS TOXINS 363 IX. THE PSYCHOSES WITH PELLAGRA 378 X. THE PSYCHOSES WITH OTHER SOMATIC DISEASES 392 XI. THE MANIC-DEPRESSIVE PSYCHOSES 409 XII. INVOLUTION MELANCHOLIA 427 XIII. DEMENTIA PRÆCOX 440 XIV. PARANOIA AND THE PARANOID CONDITIONS 461 XV. THE EPILEPTIC PSYCHOSES 475 XVI. THE PSYCHONEUROSES AND NEUROSES 489 XVII. THE PSYCHOSES WITH PSYCHOPATHIC PERSONALITY 504 XVIII. THE PSYCHOSES WITH MENTAL DEFICIENCY 524 INDEX 537 AUTHOR'S PREFACE In presenting a preliminary consideration of the subject of mental diseases as a public health problem the author is actuated by no other motive than that of stimulating the undertaking, at some future time, of a comprehensive investigation and survey of an important field which has never been systematically and adequately studied in the past. Under existing circumstances the facts necessary for an intelligent discussion of this question are unfortunately not obtainable. We have, as will be shown, practically no information whatever as to the incidence of mental diseases in the community. Hospital statistics are still in such a chaotic state that we are not even in a position to speak authoritatively of that part of the population which is entirely within our supervision and control in institutions. Before any progress can be hoped for we must at least have at our disposal accurate data relative to the patients within the walls of our hospitals. This presupposes a uniform scheme of statistical reports based upon some common viewpoint. Adequate preparations for this undertaking have been made by the American Psychiatric Association and the National Committee for Mental Hygiene. Every hospital for mental diseases in the country has been urged to cooperate in this movement. To show the necessity for more actively prosecuting this research has been one of the principal purposes of this book.