Excerpt from The Principles of Chemistry, Vol. 1 of 2 This work was written during the years 1868 - 1870, its object being to acquaint the student not only with the methods of observa tion, the experimental facts, and the laws of chemistry, but also with the insight given by this science into the unchangeable sub stratum underlying the varying forms of matter. 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.