Excerpt from An Elementary Text-Book of Physics This volume, which is issued as Part II. of an Elementary Text-Book of Physics, deals with the elements of Sound. An effort has been made to give, as simply and as clearly as possible, a fairly complete exposition of the fundamental facts and principles of the subject. The experiments described in the text are intended to illustrate and develop the theory, but in most cases the descriptions are given with sufficient experimental detail to be of service in the laboratory. This Part is complete in itself, but a knowledge of some of the elementary principles of Dynamics dealt with in Part I. is necessarily assumed. 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.