Dr. Cannon is internationally known as a contributor to our knowledge of physiology. He is known for his ability in expressing his knowledge equally to scientific and to public audiences. In some fundamental essays, first developed in lecture form, he traces the nature of appetite and hunger, the nature of thirst, our knowledge of digestion and bodily vigor and the relationship of pain, worry and excitement to indigestion. In an epilogue he shows the importance of digestion in the body economy, adding it to the lungs, the heart and the brain as the fundamental systems of the human body.
It is significant that the lectures which form the basis of this volume are characterized as the Beaumont lectures, thus adding still further to the fame of that American founder of our knowledge of the physiology of digestion. The lectures were given in connection with the celebration of the publication of