Acknowledgements Dedication Introduction 1 The Background to Harvey's Discovery Calen Calen on, the Heart and Blood Harvey The Renaissance Vesatius Fabricius Renaissance Art Renaissance Art and Anatomy 2 Harvey's Discovery of the Circulation De Motu Cordis The Circulation The Venous Valves The Ligature Experiments The Flow-Rate Experirnent The Motion of the Heart The Pulse and the Heart Valves 3 The Nature of Harvey's Discovery The Scientific Revolution Harvey and Aristode Harvey and Quantifcation Harvey and Mechanical Models Harvey and the Natural Magic Tradition Harvey and Witchcraft Harvey and the Scientific Revolulion 4 The Reception of Harvey's Discovery Opposition to Harvey The Theory of 'Ebullition' What is Actually Seen? Other Objections The Dispute with Descartes Harvey's Later Work Conclusion Further Reading Glossary