ON THE CONTRIBUTIONS OF HUGH OWEN THOMAS, SIR ROBERT JONES, JOHN RIDLON, M.D., TO MODERN ORTHOPEDIC SURGERY. By H. Winnett Orr, M.D., Chief Surgeon, Nebraska Orthopedic Hospital, Linclon, Nebraska. With a Supplement on RIDLON AND HIS SHARE IN MOULDING ORTHOPEDIC SURGERY by Arthur Steindler, M.D., Professor of Orthopedic Surgery, State University of Iowa Medical School, Iowa City, Iowa. 8½x6½ in. Pp. xiv+253, with 22 figures. Annotated bibliography. 1949. Illinois: Charles C. Thomas. Oxford: Blackwell Sci