Crystallography

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Excerpt from Crystallography: An Elementary Manual for the Laboratory Crystallography can be studied from two different view-points: one as a mathematical science with its applications both in the instrumental determination of crystal angles and in their mapping or projection, the other chiefly as an observational study with the application of some simple rules that will enable the prospector and laboratory student to determine the crystalline form with sufficient accuracy for practical purposes in the field or laboratory. It is the intention here simply to devote our time to the latter practical purpose, which is all that the average engineering or science student, who is not making a specialty of Crystallography and Mineralogy, has time to accomplish. In the study of this subject I worked out a course of brief lectures in 1873, and used them in laboratory work at Harvard University. Subsequently, in 1876 and in later years, they were given in connection with my lectures upon Mineralogy in that institution. These lectures form the nucleus of this little work. 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.