Download or read book Mineral Land Surveying (Classic Reprint) written by James Underhill and published by Forgotten Books. This book was released on 2017-12-23 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Mineral Land Surveying Oi the applications of plane surveying to the survey of mineral lands, no one is more representative or has been more greatly perfected in the West than the use of the sun to determine the bearing of a given line. For many years hearings were determined by the use of various solar attachments but of late years the method known as the direct observation seems to have almost entirely taken their place. While with great care any one of the several solar attachments on the market will give fair or even good results, they are all relatively expensive, fragile and with one exception, easily thrown out of adjustment. With the method known as the direct observation no attachment is needed to the ordinary transit provided with a vertical are or circle, preferably the latter, and no adjustment has to be considered other than those necessary to use in every transit in mineral land surveying. As the exact determination of the bearings of lines is probably more important in mineral land surveying than in perhaps any other branch of engineering, disregarding of course geodetic work, it will be taken up in detail. 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.