Excerpt from A Practical Treatise on the Diseases of the Lungs, and Heart: Including the Principles of Physical Diagnosis The existence of disease involves that of anatomical change, not only in the part originally and chiefly affected, but also in the structures immediately adjoining. There are a few apparently pure dynamic diseases, forming doubtful exceptions to this proposition; but, admitting their reality, they are not of sufficiently great importance to affect the general truth. 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.