On January 28, 1933, a meeting of the Scientific Program Committee was held in Philadelphia at which the following were present: Henry K. Pancoast, M.D., Eugene Pendergrass, M.D., John T. Murphy, M.D., Byron H. Jackson, M.D., Leopold Jaches, M.D., William A. Evans, M.D., and George E. Pfahler, M.D. It was decided that we should hold two evening sessions. It was decided to hold no banquet and no dance. This was done for the sake of economy of time, money, and energy. The first evening session shall be on Wednesday, Sept. 27, at 8:30 p.m. sharp, at which time there will be a convocation of the American College of Radiology, and a brief address by the President. It will be conducted by the officers of the American College of Radiology, who will, in turn, introduce the officers of the American Roentgen Ray Society, who will officiate at the Caldwell Lecture. On Friday, Sept. 29, at 8:30 p.m., there will be a convocation of the Radiological Society of North America, and an award of medals and honors, conducted...