Supplementary Edition of Motion Picture Reviews Now Available.—The Committee on Medical Motion Pictures of the American Medical Association has completed the first supplement to the second revised edition of the booklet entitled "Reviews of Medical Motion Pictures." This supplement contains 86 reviews of medical and health films reviewed in The Journal of the American Medical Association from Dec. 31, 1949 to Jan. 1, 1951. Each film has been indexed according to subject matter. The purpose of these reviews is to provide a brief description and an evaluation of motion pictures which are available to the medical profession.Copies of this supplement are available upon request to:The Committee on Medical Motion Pictures, American Medical Association, 535 North Dearborn Street, Chicago 10, Ill.Continuation Course on Diseases of the Blood in Infancy and Childhood.—Dr. William Dameshek, Professor of Clinical Medicine, Tufts University School of Medicine, Boston; Clement A.