The exhaustion of two large editions of this book within less than two years after its appearance attests the success of the humble efforts of the author in laying before the general practitioner an account of the principles of psychotherapy in such manner as to be of practical value as an adjunct to his therapeutic armamentarium. That psychotherapy has won for itself the highest recognition of its deserved place in therapeutics is no longer questioned by one who has kept his eyes open to the advances of modern medical science. I ts unqualified indorsement by the American Therapeutic Society; the establishment of the Henry Phipps Psychiatric Clinic at Johns Hopkins University under the efficient direction of A dolph Meyer, professor of nervous and mental diseases jn that institution, where the psychoanalytic method of psychotherapy will be intelligently employed; its support by men of such recognized ability as Freud, Jung, Bleuler, Breuer, Prince, Janet, Babinski, Putnam, Sidis, Dubois, Miinsterberg, Jones, Brill, Donley, Waterman, Taylor, and others shows the value of the various psychotherapeutic methods in their numerous applications in the treatment of disease. But some of these men of unquestioned professional ability, able and scholarly are disposed to limit its field to the department of neurology and psychiatry, when its greatest field of usefulness is in the general practice of medicine in all classes of medical and surgical practice. A few of these men are disposed to speak disparagingly of many of the simpler psychotherapeutic devices, assuming a holier than thou attitude toward the employment of psychotherapeutic procedures in a class of work not coming within the domain of their own specialty. This attitude is unworthy of scientific men, many of whom apparently write to conceal thought rather than to impart practical knowledge.