Publisher's Synopsis
Excerpt from Elements of Metallurgy: A Practical Treatise on the Art of Extracting Metals From Their Ores
A great difficulty experienced in collecting statistics relative to the metal-production of the world arises from the fact that ores raised in one country are frequently subjected to metallurgical treatment in another, and the produce is, in the majority of instances, returned by both. Allowance for such double returns has, when practicable, been made, but the complete elimination of error arising from this cause would be exceedingly difficult. Sometimes no precise figures have been available, and in such cases estimates founded on the best procurable data have been substituted. Both the wet and dry methods of assaying are given with considerable detail, and when, as in the case of ironstones, the value of an ore is materially affected by the nature and quantity of the impurities present, the processes employed for their detection and estimation are fully described. 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.
