In the coordination of actions of the human body the cerebral cortex and the hypothalamus play most important parts. This book offers a concentration of the general physiology of the autonomic nervous system and special considerations of the manner in which the temperature of the body, the use of water and minerals, metabolism, circulation, respiration, sleep, the emotions and other functions are controlled. The arrangement of the book is such that the fundamental anatomy forms the subject of the concluding chapters. As is pointed out by Dr. John F. Fulton in his preface, the physiology of the autonomic nervous system has tremendous application to clinical practice. The author has considered the available literature, most of which is reviewed in this book. The case reports in many instances indicate the technic of application of the knowledge concerned to the care of the sick.