Excerpt from The Principles of Chemistry, Illustrated by Simple Experiments The rapid progress of experimental science during the last twenty-five years is to be ascribed, in great measure, to the fact that pupils, as well as instructors, have become experi menters. This is especially true with respect to chemistry. For every contemporary of Davy, engaged in experimental researches in this department, there are probably, at present, scores of persons occupied in the same field. The fruits of this labour are to be seen in the improved condition of manu factures; in the more substantial scientific basis upon which many processes, formerly altogether empirical, are now se curely fixed; in the progress of agriculture, and the arts generally; and, to some extent, in the progress of medicine. 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.