Bernard Wood Bernard Wood is at present Professor of Human Origins at George Washington University and Adjunct Senior Scientist at the National Museum of Natural History, the Smithsonian Institution, Washington, USA. In 1982 he was appointed to the S.A. Courtauld Chair of Anatomy in the University of London, and in 1985 he moved to the Derby Chair of Anatomy, in the University of Liverpool. He holds the degrees of MD, Ph D and DSc from the University of London. Leslie Klenerman Leslie Klenerman is Emeritus Professor of Orthopaedic and Accident Surgery, of the University of Liverpool. Prior to moving there in 1987, from 1970 he was a consultant orthopaedic surgeon and honorary research fellow at Northwick Park Hospital and the MRC Clinical Research Centre, Harrow Middlesex. With a grant from the Woolfson Foundation he started a laboratory for pedobarography there. In 1990 he was awarded the James Berrie Prize by the Royal College of Surgeons of England for his work on the foot. He has been President of both the European and British Foot Surgery Societies. Since he retired he has been an associate editor of the British Journal of Bone and Joint Surgery and an associate foreign editor of Foot and Ankle International, the official journal of the American Foot and Ankle Surgery Society. Book Publications include: The Foot and Its Disorders published by Blackwell, 3e, 1990; The Evolution of Orthopaedic Surgery published by the Royal Society of Medicine Press, 2001; with H.P.J. Walsh he edited Physical Signs in Orthopaedics published by BMJ Publishing Group, 1994; The Tourniquet Manual- Principles and Practice published by Springer 2003.