A VERY important series of sixteen papers on aureomycin has been published in the Annals of the New York Academy of Sciences, vol. 51, Art. 2, pp. 175-342 (November, 1948). These papers were the result of a conference aureomycin held by the Division of Mycology of the Section of Biology, the New York Academy of Sciences, on July 21, 1948. They represent the work of forty-three investigators, sixteen of whom are on the scientific staff of the Lederle Laboratories Division, American Cyanamid Company, Pearl River, N.Y. The remainder are well known and independent biological and medical research workers in official laboratories, university medical schools and hospitals, all of whom were supplied with aureomycin by the Lederle Laboratories.