Dr. Felix Mann, President of the Medical Acupuncture Society, is one of the outstanding Western practitioners of the ancient Chinese art, which he has been using for some years in London. In this complete revision of his 1962 book -- over half of which is entirely new material -- he describes in detail for the first time how acupuncture works from a scientific point of view, explaining the neurophysiological mechanism involved as well as the basic principles and laws according to the theories of traditional Chinese medicine. Written for both the layman and the medical profession, the book illustrates its points with case histories drawn from Dr. Mann's own patients in England.