Radiotherapy, being comparatively new and in its developing stage, so to say, like every other science, suffers more or less from men who meddle with it without mastering it, and from those who think carelessly, generalize rapidly, rashly, and, as Sumner says, make concessions hastily without proper investigations, experimentation and progressive study, which is the only path for repression of ignorance and charlatanism. A host of writers have been busy for the last few years introducing conflicting and baseless notions which, for want of competent criticism, found their believers on the one side, while on the other some of our best men made a boast of turning their backs on the real scientific method of new treatments, which in many hopeless cases gave not only relief but prolonged the life of those who were suffering and beyond help. To use the Roentgen rays, the rays of radium, or any other