Présentation de l'éditeur
The Revised Edition of theE ssentials of Chemistry retains the scientific character of the original text, but the method of treatment and the order of topics have been modified in accordance with the experience of the past ten years. These years have brought about significant changes in the Chemistry courses of secondary schools. Not only has the number of students increased greatly, but chemical science has become more and more important as a prerequisite for work in the other sciences and in applied courses. In view of this increased and altered demand for chemical instruction, authors are tempted to neglect the basic principles of the science, and to enlarge upon the purely descriptive matter. But Chemistry that is merely descriptive is not an adequate preparation even for applied courses. What is sought of Chemistry, both by those who study it as a prerequisite for other work, and by those whose sole aim is general culture, is, essentially, the chemical point of view. To present that point of view properly, a text-book must include a correct, even if simple, treatment of chemical theory.
(Typographical errors above are due to OCR software and don't occur in the book.)
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Présentation de l'éditeur
This book was originally published prior to 1923, and represents a reproduction of an important historical work, maintaining the same format as the original work. While some publishers have opted to apply OCR (optical character recognition) technology to the process, we believe this leads to sub-optimal results (frequent typographical errors, strange characters and confusing formatting) and does not adequately preserve the historical character of the original artifact. We believe this work is culturally important in its original archival form. While we strive to adequately clean and digitally enhance the original work, there are occasionally instances where imperfections such as blurred or missing pages, poor pictures or errant marks may have been introduced due to either the quality of the original work or the scanning process itself. Despite these occasional imperfections, we have brought it back into print as part of our ongoing global book preservation commitment, providing customers with access to the best possible historical reprints. We appreciate your understanding of these occasional imperfections, and sincerely hope you enjoy seeing the book in a format as close as possible to that intended by the original publisher.
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