Excerpt from Tables and Rules for Facilitating the Calculation of Earthwork, Land, Curves, Distances, and Gradients, Required in the Formation of Railways, Roads, and Canals: Also, Essays on the Prismoidal Formula, and on the Power Required Upon Inclined Planes The great advancement made of late years in the sci ence of civil engineering, and the increased number of works promoted by public and private interests, in the formation of roads, canals, and railways, call for a more extended view of the theory of the construction and measurement of such works than 'has hitherto been given to the world, both for the better instruction of pupils, and for the facilitation of the labours of practical men. With the above object in view I have prepared the following work, especially adapted to the measure ment of railways, and comprising in its extent a greater compilation of Tables and Essays, on the impor tant features of this subject, than has hitherto been introduced. 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.