Text-Book of Descriptive Mineralogy (Classic Reprint)

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Excerpt from Text-Book of Descriptive Mineralogy

IN the preparation of the present volume, owing to the large and constantly increasing stock of mine ralogical literature, the chief difficulty has been the selection and compression of the material so as to give a fair general view Of the subject within the space available. For this purpose and in order to carry out the general ideas Of the series, only the more important Species, whether from a natural history or an economic point of view, are described in much detail, the general relations of the individual species in each group being indicated in a preliminary statement at the commencement Of each chapter. It was originally intended to illustrate the descriptions mainly by the figures in the 'treatise on Systematic Mineralogy;' but during the progress of the work, the writer was fortunate enough to acquire the wood blocks used in the illustration of Brooke and Miller,' which have been generally regarded as the best examples of their class ever executed, and he has used a selec tion of these in preference to perspective projections.

As in the former volume, the double system Of nota tion is followed - that of Miller according to Weiss's order, and the corresponding symbols of Naumann for forms, but the former is alone used for faces. In the figures of the Oblique system it must be borne in mind that sometimes the slope of the Oblique axis is to the right and sometimes to the left, and therefore to bring these into accordance with the assumption Of a uniform forward slope the plane Of projection is, in the former case, the positive, and in the latter the negative clinopinakoid, which will give a corre sponding difference in the indices of the type faces, while Naumann's form-symbols are unchanged. The writer, having been absent from England while a considerable number of sheets were in the printer's hands, is much indebted to his friend Mr.

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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.

Details

Publisher - Forgotten Books

Language - English

Author(s) - Hilary Bauerman

Hardback

Published Date - August 26 2019

ISBN - 9780266282570

Dimensions - 22.9 x 15.2 x 2.5 cm

Page Count - 409

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