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Author: William Francis Hillebrand
Publisher:
ISBN:
Category : Rocks
Languages : en
Pages : 104
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Book Description
Author: William Francis Hillebrand
Publisher:
ISBN:
Category : Rocks
Languages : en
Pages : 104
Get Book Here
Book Description
Author: William Francis Hillebrand
Publisher:
ISBN:
Category :
Languages : en
Pages : 114
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Book Description
Author: William Francis Hillebrand
Publisher:
ISBN:
Category : Rocks
Languages : en
Pages : 142
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Book Description
Author: William Francis Hillerbran
Publisher:
ISBN:
Category :
Languages : en
Pages : 114
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Book Description
Author: William Francis Hillebrand
Publisher: Forgotten Books
ISBN: 9780331319156
Category : Science
Languages : en
Pages : 160
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Book Description
Excerpt from Some Principles and Methods of Rock Analysis With the introduction of improved methods of examination by the petrographer, especially as applied to thin rock sections, and the use of heavy solutions, whereby, on the one hand, the qualitative mineral composition of a rock could be preliminarily ascertained with consid crable certainty, and on the other, chemical examination Of the more or less perfectly separated ingredients was rendered possible, a great help and incentive was afforded to the few chemists engaged in rock analysis. The microscope often obviated in part the necessity for tedious and time-wasting qualitative tests, and the heavy solutions, by permitting the concentration and separation of certain components, facilitated the detection of elements whose existence had long been overlooked. Meanwhile in the progress of chemistry new methods and reagents for qualitative detection and quantitative separation and estimation were gradually being discovered and devised. The supposed adequacy of some well-established methods was Shown to be unwarranted; some had to be discarded altogether, others were still utilizable after modi fication. In the light thus Shed it became possible to explain many hitherto incomprehensiblevariations in the composition of some rock species or types, as Shown in earlier analyses, and in not a few cases it appeared that the failure to report the presence of one or more elements had obscured relations and differences which more thorough examination Showed to exist (see pp. 16 Consequently there arose a feeling of distrust of much of the older work in the minds of those chemists and petrographers best fitted to judge of its probable qualities. This, and 'the incompleteness of nearly all the earlier work (and much of that of to-day, unfortunately), as shown by the largely increased list of those elements now known to enter into the normal composition of rocks, is rendering the old material less and less avall able to meet the increasing demands of the petrographer. 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.
Author: William Francis Hillebrand
Publisher: Palala Press
ISBN: 9781343369955
Category :
Languages : en
Pages : 102
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Book Description
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.
Author: William Francis Hillebrand
Publisher:
ISBN:
Category :
Languages : en
Pages : 114
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Book Description
Author:
Publisher:
ISBN:
Category : Chemistry
Languages : en
Pages : 678
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Book Description
Author: Franklin Institute (Philadelphia, Pa.)
Publisher:
ISBN:
Category : Meteorology
Languages : en
Pages : 528
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Book Description
Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-1859. cf. Index to v. 1-120 of the Journal, p. [415]
Author: D. Hutchison
Publisher: Elsevier
ISBN: 0080984800
Category : Science
Languages : en
Pages : 396
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Book Description
A practical guide to the methods in general use for the complete analysis of silicate rock material and for the determination of all those elements present in major, minor or trace amounts in silicate and other rocks that are routinely, commonly or occasionally determined by methods that are considered to be essentially chemical in character. Such methods include those based upon spectrophotometry, flame emission spectrometry and atomic absorption spectroscopy, as well as gravimetry, titrimetry and the use of ion-selective electrodes. Separation stages are described in full, using precipitation, solvent extraction, distillation, and ion-ex procedures as appropriate. The third edition has been fully revised and updated.
