Cardiology as a medical specialty originated in the twentieth century and Britain played an important role in its development. This title provides an account of the British contributions to this field as well as the story of many of the people and institutions who were involved. Many of the key changes in the understanding of the physiology of the heart and their clinical implications were discovered by these individuals. This book should be of interest to clinicians, students, and medical historians who wish to gain a historical understanding and appreciation of this dynamic clinical discipline that has improved the health and prognosis for so many.