The Hearts of Man.

Quoting from the preface, we find "the prime object of the book is to encourage investigation into certain phenomena of the circulation and of the nervous system which have not hitherto been clearly investigated from the purely clinical standpoint—for example, the mechanism of breathing in effort and at rest, the meaning and effect on the general circulation of the great blood lakes of the skin, abdomen and lungs." Certain new notions the result of clinical observation are advanced in the sixteen chapters. These deal with such topics as reaction breathing, the function of the abdominal wall in reaction breathing, rest breathing, the ductless glands and the reaction state, the effects of epinephrin, the vagus—nerve of diastole, etc. Many of these ideas will need confirmation before they can be generally accepted but they are suggestive, stimulating and well worth careful consideration.