Excerpt from The Corrosion and Preservation of Iron and Steel IT has been found a difficult matter to bring a work of this kind up to date. New material which touches directly, or in directly, ou the corrosion and preservation of iron and steel, is appearing almost daily in the technical press of the world. The authors have made the effort to include or mention the results of all recent investigations and original researches touching on the subject which have appeared up to the time of going to press, even if to some extent the systematic arrangement of the work has had to suffer by frequent insertions. Although a consider able space is given to the description and results of the researches of one of the authors working in a Government laboratory, no material is included from this source that has not already been printed in official bulletins for free distribution to all persons desiring it. While the book is written mainly to elucidate the electrolytic theory of corrosion (which some one has humorously referred to as The New Thought in the protection problem), it is nevertheless hoped that it will be found useful and suggestive even to those to whom the theory does not especially appeal. 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.