Excerpt from Practical Alloying: A Compendium of Alloys and Processes for Brass Founders, Metal Workers and Engineers The progress made in the production of alloys within the last two decades has been phenomenal. There is no end to the invention of new alloys, and the number of variations in the composition of alloys that have long ago passed the experimental stages, is simply overwhelming. Out of the multitudinous mixtures advocated and employed in the practical and constructive arts, it is no easy matter to select, or even to classify the metals of importance. The "battle of the bronzes" has been going on for at least thirty years, and the honors have fallen to phosphor bronze, aluminum bronze and manganese bronze at different periods. In other branches of the metal industry similar progress is being recorded. New alloys are being introduced or new additions are being made to old alloys, and new records are being made in alloy practice. It is needless to add that new difficulties are also presenting themselves, and these are the things that make effort worth while. This book professes to be no more than a handy guide to the practical alloys and processes. The bulk of the matter originally appeared in "The Foundry" and other trade magazines, and judging by the number of inquiries addressed to me on many of the subjects treated, the reappearance of the articles in book form should be hailed with interest. 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.