In the abstract of "Serum-Anatoxin Therapy in Diphtheria, A. Visani, Pediatria56:193 (April) 1948," the first sentence should read "Ramon has recommended the following method of treating patients with diphtheria: the immediate injection of 0.1 cc. of diphtheria anatoxin (150 units per cubic centimeter); twenty minutes to one hour later the injection of diphtheria antitoxin in doses varying from 10,000 to 80,000 units according to the severity of the disease; forty-eight hours later an injection of 0.5 cc. of anatoxin, and at five day intervals further injections of 1, 2 and 3 cc. of anatoxin." In the abstract as it was published in the December issue of the American Journal of Diseases of Children, page 1014, the clause beginning "twenty minutes to one hour" incorrectly contained the word "anatoxin" instead of "antitoxin."