Excerpt from Practical Test-Book of Chemistry The Tests have been garnered from every available source, such as standard works on chemistry, Proceed ings of the American Pharmaceutical Association, and pharmaceutical, journals; and in many instances are copied into the collection without undergoing any change. It is a recognized duty to give all authors credit for their work, but the plan and limits of this Test-book forbid particular citation of the many works consulted in pre paring it; it is a book made from other books. The spelling adopted for scientific and chemical words is that laid down by the rules of the American Association for the Advancement of Science, 1891. The temperatures are given in Centigrade. 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.