Excerpt from The Heart Rhythms The object Of this book is not to present anything new in regard to the cardiac rhythms, but to separate them from the intricate mass Of information concerning instruments, curves, cardiac physiology, etc., in which they are often buried, and to consider the rhythms themselves as a whole, and in relation to each other, but apart from all other func tions Of the heart. In doing so they stand out as a very simple and definite mechanism, which when once understood can never be forgotten. The general plan of this book was developed in 1912 after studying in London, was used in the next year in teaching at the Peter Bent Brigham Hospital, Boston, and since then in connection with lectures in pharmacology at Johns Hopkins University. On account Of various re quests during the past ten years to publish this plan of the heart rhythms the book has finally been completed. 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.