Book Description

Excerpt from A Course in the Elementary Principles of Chemistry for Secondary Schools: Edition In publishing this book the author is primarily influenced by a desire to place in the hands of his own students a set of directions for their laboratory work, combined with a concise statement of those definitions, principles, and explanations which he considers essential to an intelligent understanding of the subject. The course represents what is being done in this laboratory at present and what has been done for several years. It is in reality the outcome of a good many years of experience in teaching the subject from a variety of text books without any printed laboratory guide whatever, combined with the necessity of obtaining practical results in a very limited time. The available time for the subject in this school consists of thirty-five laboratory periods of eighty minutes each and seventy recitation periods of forty minutes each. In developing the subject it has been the constant aim to teach general principles and to eliminate as far as possible the burden resulting from the mere memorizing of a large quantity of ill-assorted facts. With this in view the laboratory work is so arranged that for the first three months the student meets only such chemical changes as are typical of the fundamental reactions of chemistry. With the exception of oxygen, hydrogen, and water, no substances are studied during this time that require much descriptive work in recitation. The extra time is spent in constant drill on fundamental definitions, the meaning and use of symbols, formulas and equations, and on the subject of chemical equivalence. As a result of this drill the student becomes perfectly familiar with the language of chemistry and has no further serious trouble in remembering, classifying and expressing chemical facts. 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.