BY IRA D. GARARD, PH.D. PROFESSOR OF CHEMISTRY IN NEW JERSEY COLLEGE FOR WOMEN New York THE MACMILLAN COMPANY 1924 All rights reserved PREFACE THE purpose of this book is mainly to provide a textbook for college students who have taken a course in general chemistry and who are further interested in the applications of chemistry and the manner in which it functions in modern life. Sufficient organic chemistry is included to make clear any of those later chapters which deal primarily with organic substances; while for those students who have had a course in organic chemistry, Chapter VII will constitute a systematic review and may add some information of practical importance. In addition to its use as a text, it is hoped that the book will prove useful to readers who are interested in chemistry because of its relation to their fields in science, art, or industry. The plan of the book aims to systematize so far as possible the practical information of chemistry rather than to merely state the facts. To this end, many of the laws and principles of the science are stated in the earlier chapters where they are illustrated; these also serve as the basis of explanation of the material in the later chapters. Air and water have been treated in their chemical and physical aspects in nature and in household and industrial processes. The middle portion of the book treats principally those compounds and processes involved in the subject of foods and nutrition. The compounds here encountered are treated as chemical classes, and so cellulose, waxes, and some other compounds together with their related industries are treated here although they are not foods. The last eight chapters aim to give a knowledge of those industries in which chemistry plays an important part; and also treat the use and importance of the products of these industries. 536900 |