by Sir Hugh Devine, M.S., F.R.A.C.S., F.A.C.S., Hon. F.R.C.S. (Eng.), Formerly Senior Surgeon, St. Vincent's Hospital Clinical School, Melbourne, and other Stewart Lecturer in Surgery, Melbourne University, President, Royal Australasian College of Surgeons, Hon. Fellow of the Association of Surgeons of Great Britain and Ireland, Chairman, Editorial Committee of the Australasian and New Zealand Journal of Surgery.