This treatise on physiology in eleven volumes has been so well received that it has been considered worth while to bring out a second edition. The present volume is the first of this edition that has appeared. It is considerably (229 pages) longer than the first edition. The following subjects have been particularly revised and amplified: the origin of the formed elements, hemorrhage, transfusion, blood chemistry, coagulation, immunity and anaphylaxis. The work is liberally documented with references to the literature, mostly French, although English, American and German works are cited as well. French science may well feel proud of this evidence of its vitality.