Excerpt from Contributions to Cardiac Pathology The following papers, scattered through the journals, are here collected, with a few notes and alterations. Some questions they more or less incidentally dis cussed, would seem yet to await a final answer. For example, whether all the elements are found for a thoroughly satisfactory explanation of the first sound of the heart; the precise period of cardiac revolution, during which injection of the coronary arteries takes place; whether data are furnished for possible dia gnosis in transposition of the great vessels of the heart 5 whether presystolic murmur may not, at times, be of indirect or regurgitant origin 5 and lastly, the immediate cause of death in insufficiency of the aortic valves. The Signs revealed by auscultation, in some cases, still admit of more correct interpretation. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.