Excerpt from The Retrospect of Practical Medicine and Surgery, Vol. 5: Being a Half-Yearly Journal, Containing a Retrospective View of Every Discovery and Practical Improvement in the Medical Science The two sounds are not, however, exactly alike. They differ somewhat, both in quality and duration. The first is a dull, prolonged noise the second a shorter and smarter sound, having more of a clacking or flapping character. 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.