Excerpt from A First Book of Natural Philosophy: An Introduction to the Study of Statics, Dynamics, Hydrostatics, Light, Heat, and Sound The following work embraces all the subjects in Natural Philosophy required at the Matriculation examination of the University of London. For the present edition it has been revised throughout. Considerable additions have been made in nearly every chapter; and, in order to meet the more recent requirements of the University, a chapter on Heat has also been added. The demonstrations are carefully adapted to the requirements of those whose Mathematical kwledge does t extend beyond the First Book of Euclid, and the easier cases of Simple Equations. In a few instances, where Mathematical demonstrations present some perplexity to the beginner, experimental proofs have been substituted. Examples in illustration are given with all the more important propositions, and numerous other examples are added for exercise. I have endeavoured hereby to supply a work which shall also be generally useful as a First Book of Natural Philosophy. Some experience in teaching has confirmed the opinion, that the junior pupil may, with a twofold benefit, be early introduced to Natural Philosophy, as a branch of his Mathematical studies. 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 techlogy 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.