In the article, "Studies in Immunity: V. Effect of Acute Diseases on the Reaction of the Skin to Tuberculin," by Drs. A. Graeme Mitchell, Waldo E. Nelson and Thomas J. LeBlanc in the March issue (Am. J. Dis. Child.49:695, 1935), "Cm." after "Rate" in the fourth and sixth columns of table 1 should be omitted.