In a former issue of The Journal1 there appeared an article by Dr. J. F. Schamberg, entitled "An Examination into the Claims of the Red-Light Treatment of Smallpox." He criticises the treatment: 1, Because I called it a new one; 2, because he considers my theoretical views concerning smallpox and light to be wrong, and 3, because he is of the opinion that the red-light method has proved inefficacious, and that the good results in all former experiments may have been due to other factors; and he further suggests that the cases so treated were probably so mild in type that they would have escaped suppuration without the red-light treatent.
I. "THE RED-LIGHT TREATMENT IS NOT NEW."
I am surprised that Dr. Schamberg should consider the modern red-light treatment to be the same as the one employed in the middle ages by Gaddesden and