The author is Superintendent of Brawner's Sanitarium in Georgia. He had been requested by many friends among physicians to write a book describing briefly and in language as simple as the subjects permitted, the neuroses, psychoneuroses, and psychoses. The author complied and wrote about each disorder “succinctly and clearly.” Part one is devoted to a brief description of mental reactions as related to cerebral functions; part two is devoted to the etiology, symptomatology, and treatment of the psychoses;