This report records the result of four years' research into the treatment of cancer by means of the rays from a large mass of radium situated at a distance from the patient, as contrasted with the more usual type of radium therapy, in which much smaller amounts, properly contained, are inserted by surgical operation directly into the tissues or applied close to the skin. The former method, first developed in France, Belgium, the United States and, more extensively, Sweden, has been referred to as "radium beam therapy" or "teleradium therapy."
In the work represented by this publication, treatment was restricted to cancer of the mouth, tongue, pharynx and larynx, relatively accessible to radium therapy. By reason of the superficial sites of the growths, the local effects of the radiation could be readily observed. The results compared favorably with those to be expected from surgical intervention and were obtained without any