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Author: A. T. Shurick Publisher: Forgotten Books ISBN: 9780266234661 Category : Technology & Engineering Languages : en Pages : 322
Book Description
Excerpt from Coal Mine Surveying The rapid depletion of the primitive forests of America by fires and axe in recent years has raised the price of wood so rapidly that the mining industry is becoming alarmed as to its future supply of the big timber of which it has hitherto been such a prodigal consumer. Economy in the use of timber has been essential to commercial success in European mining for several generations and it was to the Old World that our operators went for their first systems of timberless mining. The use of steel and masonry for the support of mine shafts and tunnels has long been practised in Europe not only because of dear timber but because most mines there are considered to be long-term investments rather than temporary speculations. As this replacement of timber supports by other material involves no new mining system and has been thoroughly covered by other writers, it will not be described in this treatise. Though most of the mining methods considered consume some timber, their economy in that respect is so marked as to justify the use of a title Mining without Timber. 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: A. T. Shurick Publisher: Forgotten Books ISBN: 9780266234661 Category : Technology & Engineering Languages : en Pages : 322
Book Description
Excerpt from Coal Mine Surveying The rapid depletion of the primitive forests of America by fires and axe in recent years has raised the price of wood so rapidly that the mining industry is becoming alarmed as to its future supply of the big timber of which it has hitherto been such a prodigal consumer. Economy in the use of timber has been essential to commercial success in European mining for several generations and it was to the Old World that our operators went for their first systems of timberless mining. The use of steel and masonry for the support of mine shafts and tunnels has long been practised in Europe not only because of dear timber but because most mines there are considered to be long-term investments rather than temporary speculations. As this replacement of timber supports by other material involves no new mining system and has been thoroughly covered by other writers, it will not be described in this treatise. Though most of the mining methods considered consume some timber, their economy in that respect is so marked as to justify the use of a title Mining without Timber. 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: L.S.S. O'Malley Publisher: Concept Publishing Company ISBN: Category : Business & Economics Languages : en Pages : 212
Book Description
Excerpt from Howrah The deep channel alternates from left to right and vice cersa according to the windings of the river, except where deflected by the large tributaries which debouch into it at the southern limit of this district. Proceeding from Howrah Bridge, the deep channel runs on the Calcutta side in the Calcutta Reach past the Fort and Kidderpore to Garden Reach. At Rajganj, Opposite Hangman Point, it crosses over to the Howrah Side, and follows the Sankrail Reach as far as Melancholy (menikhali) Point. It then zigzags from left to right at each bend. 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: John Betancourt Publisher: Wildside Press LLC ISBN: 1557422990 Category : Fiction Languages : en Pages : 134
Book Description
The March 1930 issue of the rare pulp magazine SUBMARINE STORIES, which lasted for thirteen issues and so must count as one of the more successful of the hyper-specialized pulps. Long prized by collectors as a curiosity, too scarce and valuable to be actually read, it turns out to be quite an entertaining magazine, containing stories by such pulp stalwarts as George Fielding Eliot (author of the grisly WEIRD TALES classic "The Copper Bowl") and Alan R. Bosworth, a prolific pulp writer who appeared in everything from ARGOSY to UNKNOWN WORLDS. Here too is a vivid first-hand account of undersea warfare by a genuine German U-boat captain.
Author: Arnold Lupton Publisher: ISBN: Category : Coal mines and mining Languages : en Pages : 494
Book Description
Lupton's textbook on mine surveying includes the more advanced subjects of trigonometrical plotting, hypsometry, method of finding the true north, metalliferous mine surveying, and photographic surveying.
Author: Publisher: Forgotten Books ISBN: Category : Science Languages : en Pages : 424
Book Description
Excerpt from Edinburgh New Philosophical Journal, 1857, Vol. 5 Correlation of the Triassic Rocks in the Vale of Worcester, and at the Malvern Tunnel. By the Rev. W. S symonds. 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: Bruce A. Kennedy Publisher: SME ISBN: 9780873351027 Category : Reference Languages : en Pages : 1214
Book Description
This SME classic is both a reference book for the working engineer and a textbook for the mining student. This hardcover edition gives a brief history of surface mining and a general overview of the state of surface mining today--topics range from production and productivity to technological developments and trends in equipment. This extremely useful text takes the approach that exploration and mining geologists must be expert in a number of fields, including basic finance and economics, logistics, and pragmatic prospecting. Readers will find material on all these topics and more. The book's nine chapters include: Introduction, Exploration and Geology Techniques, Ore Reserve Estimation, Feasibility Studies and Project Financing, Planning and Design of Surface Mines, Mine Operations, Mine Capital and Operating Costs, Management and Organization, and Case Studies. The book is fully indexed.
Author: Publisher: ISBN: Category : Science Languages : en Pages : 1380
Book Description
Over 220,000 entries representing some 56,000 Library of Congress subject headings. Covers all disciplines of science and technology, e.g., engineering, agriculture, and domestic arts. Also contains at least 5000 titles published before 1876. Has many applications in libraries, information centers, and other organizations concerned with scientific and technological literature. Subject index contains main listing of entries. Each entry gives cataloging as prepared by the Library of Congress. Author/title indexes.
Author: A. T. Shurick
Author: A. T. Shurick
Author: L.S.S. O'Malley
Author: John Betancourt
Author: C. Albert White
Author: Arnold Lupton
Author: William Stanley Jevons
Author: 
Author: Bruce A. Kennedy
Author: 
Author: United States. Bureau of Mines. Technical Library, Pittsburgh