The proceedings of sections at the Annual Meeting of the British Medical Association, 1923. This publication is from the Section of Medicine and includes: the President's introductory remarks; an opening address by F. G. Banting; a discussion with questions from members of the audience including: Drs. P. J. Cammidge, J. A. Nixon, J. K. Rennie, E. P. Poulton, Otto Leyton, A. P. Thomson, and F. A. Roper; and Dr. Banting's reply.