This is the third edition of a useful and concise small monograph on the medical applications of infra-red radiation. In the foreword Lord Horder states, "At a time when physical therapy seems at last to be coming into its own in this country, we welcome Doctor Beaumont's concise and yet complete treatise upon infra-red irradiation."
Six years of war have intervened since the issuance of the previous edition and the author points out that during this time there has been a tremendous increase in the use of infra-red irradiation. The new edition has been entirely revised and two new chapters have been added; many of the old illustrations have been replaced. There are chapters on terminology, physical basis, physiologic effects, apparatus, technic, treatment of common symptoms, application to disease and combined treatments and on the recording and analysis of cases.
While this book is not an exhaustive one for the