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In the present work, the first edition which was favorably received eight years ago has been thoroughly revised. The charters have been extended and much valuable material has been added in the new ones on "The Efficiency and Adaptability of the Heart," "Vascular Control of the Circulation," "The Principles and Practice in Optical Registration of Mechanical Pulsations in Man" and "The Dynamic Consequences of Chronic Heart Disease." The general plan of the original edition has been retained. The book is divided into three sections. The first deals with the physiology of the circulation, the second with graphic methods for the clinician and the third with disease of the heart and circulation.
The physician is constantly becoming more aware of the importance of a thorough basic knowledge of physiology in the interpretation of clinical problems. The applications of physiologic methods in recent years have been chiefly responsible for the rapid advancement