A Manual of Petrology (Classic Reprint) - Tapa blanda

Excerpt from A Manual of Petrology

Page 26, fig 10. Add Mica plate inserted along 70, 41. For granular read shewing. 133, 70. Delete nicols. 200, Note. For XI read IX. 220, l. 26. For Mayse read Mazoe.

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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.

Excerpt from A Manual of Petrology

The present work is founded on An Introduction to Petrology, published in 1909. It was originally intended as a third edition of the latter, but the changes which seemed advisable in the treatment of some parts of the subject and in the bringing of others up to date were so extensive that a change of title appears fully justified. Some of the old illustrations have been used, but most are new; tables of analyses, etc., have been inserted and larger type has been employed for the text. The chapters on the origin of the igneous rocks and those dealing with metamorphism have been entirely remodelled, and it is hoped that they will be found less crude than some critics of the former volume not unjustly pronounced them to be. They are the result of over ten years' almost continuous field work in South Africa, which has been set out less comprehensively but with more local detail in the Geological Magazine, the Quarterly Journal of the Geological Society, and elsewhere. For the most part this book was written at too great a distance from the centres of scientific thought to owe much to outside influence, save as conveyed through books. I have, however, to thank Messrs. Franklin White, H. B. Maufe, and A. E. V. Zealley for access to specimens and literature, and for other information. I am also indebted to Prof. G. A. J. Cole and Dr. C. G. Cullis for several suggestions and corrections. As regards illustrations, figs. 38, 43 and 107 are from photographs of slides lent by Mr. Zealley, figs. 82 and 86 from rocks sent me by Mr. G. W. Card, while fig. 45 was made from one of Mr. J. L. Popham's slides. To the last I am under a special debt of gratitude for taking the photographs from which were made figs. 26, 44, 47, 49, 98 and 104.The few figures which have previously appeared elsewhere have their source indicated underneath each of them.

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.