Excerpt from Iron, Steel, and Fire-Proof Construction: With Numerous Engravings and Diagrams In preparing for publication in book form the mass of relevant matter contained in the volumes of building world, much Of it necessarily had to be rearranged and-re-written. From this cause the writings of several contributors are blended, but it may be said that the greater part of the book consists of articles written by Mr. S. G. N. Mann. 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.