Watts Manual Of Chemistry PDF Download

Excerpt from Watts Manual of Chemistry, Vol. 2: Theoretical and Practical (Based on Fownes' Manual); Chemistry of Carbon-Compounds or Organic Chemistry The bodies of animals and plants are made up of parts or organs, which exhibit a definite order and structure adapted to the functions which each has to perform. Thus there are the bones, muscles, nerves, and blood-vessels of animals, and the stem, leaves, flowers, and fruit of vegetables. The tissues of which these organs are com posed consist, again, of smaller parts having a definite fibrous or cellular structure. If we carry the analysis further, we come to the materials of which the cells and fibres consist, together with the substances enclosed in them. Here mechanical discrimination ends, and we require to call in the aid of chemistry. In a few cases the substances thus recognised consist of definite chemical compounds, such as the cellulose of which the vegetable cell-wall is composed, the starch, sugar, and acids contained in vegetable juices, the fat either of animals or vegetables. Such substances 'as these may be readily separated and collected in a state of purity. Modern researches have, moreover, shown that a large number of such compounds, formerly regarded as producible only under the influence of the so-called vital force of living animals or plants, may be formed either by direct combination of their elements, or by chemical transformation of inorganic compounds. 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.