Excerpt from A Treatise on Roofs and Bridges: With Numerous Exercises The aim has been to explain the principles clearly and concisely, to develop the different methods simply and neatly, and to present the subject in accordance With the methods used in the modern practice of roof and bridge construction. 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.