Excerpt from Mine Sampling and Valuing: A Discussion of the Methods Used in Sampling and Valuing Ore Deposits, With Especial Reference to the Work of Valuation by the Independent Engineer The discussion contained therein was a most valuable one at the time, but on the whole it lacks that continuity of thought which the subject deserves. We owe, too, a great deal to H. C. Hoover, who, in his book 'principles of Mining, ' has contributed a valuable discussion on mine valuation. It is a source of wonder to me that this matter has not been seriously taken in hand heretofore, because it must be remem bered that the whole success of mining operations is often absolutely dependent on accurate mine sampling. I therefore trust that the following pages may serve as a guide to the young engineer and may not be without value to the more experienced and older men. 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.