Books with author Shirley A Williams

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Excerpt from Minerals and Rocks: The Elements of Mineralogy and Lithology, for the Use of Students in General GeologyOn the other hand, the blowpipe tests are given fully in order that the student in the field may be able to recognize the chemical constituents of minerals with which he may not be familiar.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.

This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1921 Excerpt: ...blowpipe, they exfoliate and fuse on their edges. In the closed tube, all yield water when strongly heated. HC1 attacks them with difficulty; H2S04 with ease. They are distinguished by their cleavage, color, softness, solubility in H2S04 and manner of occurrence. They are found as constituents of partially altered igneous rocks, and of schists. Chlorite schists are made up largely of chlorites and quartz (No. 34). The chlorites also fill veins, and form pseudomorphs after other minerals. 101. Leucite (KAl(Si03)2), is an important rock constituent. It occurs almost exclusively in isometric crystals, resembling those of garnet (Fig. 63), or in small round grains. It is white or light gray, with a glassy luster, and a white streak. It is brittle and transparent or translucent, and has a hardness of 5-6 and a sp.gr. of 2.5. Because it easily Fig. 63.--Leucite decomposes, most specimens appear Crystal, white and opaque. Before the blowpipe, leucite is infusible, but colors the flame for K. It is soluble in HC1 with the production of pulverulent silica. Its powder reacts alkaline. Leucite is distinguished from most other minerals by its crystallization. It is distinguished from white garnet (No. 88) by its inferior hardness and from analcite (No. 130) by its infusibility and the fact that it contains no water. Moreover, analcite fails to give the flame reaction for K (p. 144). The mineral occurs principally in igneous rocks, especially lavas that are rich in potash. It has no commercial value at the present time, but it has been suggested that it might be made a source of potash salts. 102. Kyanite, cyanite ((A10)2Si03) or disthene is an abundant component of some schistose rocks. The name, "kyanite", suggests the sky-blue, color noticed in many specime...

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.