Subterraneous Surveying With And Without The Magnetic Needle

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Excerpt from Subterraneous Surveying: With and Without the Magnetic Needle The mineral wealth of this kingdom had become of such great importance, about half a century ago, as to induce Mr. T. Fenwick, of Dipton, in the County of Durham, to compose a Treatise on Sub terraneous Surveying (which forms the basis of the present Work) for the use and instruction of young men designed for the profession of mining agents and surveyors, usually called colliery viewers: much more, then, is such a treatise now necessary, as these mineral productions have, up to the present time, been more than quadrupled in value and by the more general diffusion of mathematical, philosophical, and mechanical science, the working of mines has been conducted with greater skill and precision for the full development of their vast wealth. 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.