This volume on diagnosis in internal medicine represents the second in Krehl's trilogy on the pathogenesis, diagnosis and treatment of internal diseases. The term "diagnosis" is used in the broadest sense and therefore includes "Beurteilung," or the physician's considered judgment about the entire medical situation. What the latter amounts to in socialized Germany is brought out vividly, but dispassionately, in the first chapter. Those who are interested in so-called state medicine as it exists in Germany should read this chapter more than once. Krehl's entire philosophy of the place of medicine among the sciences and arts, his concepts of the physician's relation to the patient, his general advice as to the technic of the anamnesis and the synthesis of the data obtained, and a host of other details derived from the mature experience of this very human master of the Heidelberg Clinic make this chapter a work of art.