Excerpt from Text-Book of Assaying: For the Use of Those Connected With Mines
Beringer"s Assaying has been for many years the accepted text-book amongst students, and is regarded in all parts of the world as the standard work on the subject. Succeeding editions have kept pace with the progress made in this branch of metallurgy, and although so short a time has passed since the publication of the 14th edition, yet it has been found necessary to make additions in the assays for tin, copper, arsenic, manganese, zinc, tungsten, and gold in cyanide solutions. All the methods given have been thoroughly tested by laboratory practice.
I have to thank Mr. Hutchin for the articles on Tungsten and Tin, and Mr. W. Brown, A.I.M.M., Chief Chemist, Eastern Smelting Co., Ltd., Penang, S.S., for an account of the standard method of tin assaying followed in the Straits Settlements; also former students of the Camborne Mining Schools for experimental verification of the methods brought forward.
Having collaborated with my brother, the late J. J. Beringer, for nearly twenty years in the Camborne Mining Schools, it seemed quite fitting for me to accept the publisher"s invitation to make revision for this edition. Criticism and suggestions which make for the improvement and greater usefulness of this book will be gratefully welcomed.
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. Это и многое другое вы найдете в книге Text-Book of Assaying (C. Beringer)