Excerpt from Handbook of Ore Dressing, Vol. 1: Equipment and Practice To define the scope Of ore' dressing logically and authoritatively in harmony with existing definitions is an impossibility. The published interpretations are so varied, and encroach, in many instances, on recovery processes, that a new departure is per missible. A permanent and radical alteration in interpretation is preferable to an attempt to expand periodically the definition, so as to embrace or exclude new treatment processes; and it is suggested that the subject may be considered as that branch of metallurgy covering the reduction or other mechanical han dling of the ore whereby one or more products are obtained in a condition to be treated for the isolation of their valuable contents by amalgamation, concentration, wet-chemical, smelting, or other process of recovery. 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.