Excerpt from Papers on Subjects Connected With the Duties of the Corps of Royal Engineers, Vol. 3 I trust also that while the appearance of this Volume has been altered for the better, the Papers which it contains will not prove of a less interesting character than those of the former Volumes. The first, that of Sir J. Jones on the Lines of Torres Vedras, is already known to most Officers, but as copies of the original edition are not to be procured, and even the French Translation is, I believe, out of print, Sir J. Jones has kindly permitted me to reprint the work, and allowed me to make use of the copper-plates engraved for the original edition. 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.