The contents of this excellent book, which is something more of an applied physiology than a treatise on actual therapeutics, comprise the principles of organotherapy, vitamins and the deficiency diseases, mechanical factors in digestion and indigestion, gastric and intestinal digestion, the work of the liver, uric acid and renal calculi, albuminuria and the treatment of nephritis, glycosuria, insulin and ketosis, some aspects of heart disease, the vasomotor system in disease, the life history of the red blood corpuscle, cyanosis and dyspnea, and allergy and some allergic diseases. There is a small list of principal references and a sufficiently comprehensive index. For the present edition a large portion of the work has been rewritten and there have been some modifications in the general plan. Vitamins, for example, are presented immediately after hormones, and the mechanical side of digestion precedes the discussion of its chemical phases. The separate chapters formerly devoted to