To the Editor:
—Referring to Dr. Soresi's article (The Journal, May 3, 1919, p. 1288), I should like to call attention to the procedure employed by me for more than eight years.If one applies liquid crystallizable phenol (full strength) with a brush or a swab to the surface of the skin or of a mucous membrane, a whitish spot results, followed shortly by local anesthesia. This method can be used, as suggested by Dr. Soresi, for many operations; it will cure light infections, as from ingrowing toe nails, furuncles, acne, ulcerations, or infection of the hysterovaginal folds. I have suggested crystallizable phenol, since that liquefied by the addition of alcohol or glycerin does not produce such an intense blanching and is less efficient.Now comes my accidental discovery. If after the white spot appears we touch it with undiluted hydrogen peroxid, it will not disappear if the tissues are