ABSTRACT

Many colleagues, past and present, have been very generous in making available several of the illustrations shown. The authors would like to thank Ms Beverley Andrews, Dr John Axford, Dr Kanran Baig, Professor Stephen Bloom, Dr Laura Corr, Dr Graham Davies, Dr David Dutka, Dr Farzin Fath-Ordoubadi, Dr Rodney Foale, Professor John Goodwin, Professor Michael Hughes, Mr Lee Lewis, Ms Barbara Morgan, Dr Petros Nihoyannopoulos, Dr Peter Nixon, Professor Mark Noble, Dr Dinah Parums, Dr Ariela Pomerance, Mr Peter Smith, Professor Gilbert Thompson and Professor Richard Underwood. The advice of Dr Steve Hearne of Duke University Medical Center is also gratefully acknowledged, as is the New England Journal of Medicine’s kind permission to reproduce Dr Naiman’s beautiful photograph of Digitalis purpurea (N Eng J Med 1994; 331: 1563).