In this day of codes it is interesting to see what a really thoroughgoing code may be, for under this title, filling some 130 duodecimo pages, there is enunciated a code of medical ethics that leaves no aspect of the physician's life untouched. Three chapters are devoted respectively to the intellectual, moral and physical qualifications of the physician. His relationships to the sick, to society and to the profession are minutely analyzed. All matters pertaining to marriage, birth control, sterilization and artificial impregnation are treated from the strictly orthodox point of view, as might be expected. The author is a doctor of sacred theology and canon law; also a member of the Supreme Tribunal of the Spanish Rota.