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Excerpt from Treatise on Topographical Drawing The want of a uniform system of topography in this country, has been the cause of much ambiguity in our topographical maps and plans. They have generally been made according to the taste or fancy of draughtsmen, without regard to any system whatever; and in consequence, are not well calculated to furnish that clear and precise information which is expected from them. With a desire to aid in establishing a uniform and permanent system of topography in this country, as well as to render some assistance to the cadets of the Military Academy, in this branch of their studies, the author has hastily compiled the following work. 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.
This is a reproduction of the original artefact. Generally these books are created from careful scans of the original. This allows us to preserve the book accurately and present it in the way the author intended. Since the original versions are generally quite old, there may occasionally be certain imperfections within these reproductions. We're happy to make these classics available again for future generations to enjoy!
Treatise on Topographical Drawing by S. Eastman. This book is a reproduction of the original book published in 1837 and may have some imperfections such as marks or hand-written notes.
Excerpt from A Manual of Topographical Drawing Professor smith's Manual on Topographical Drawing first appeared in 1854, and was at that time the only American treatise of any extent on the subject. In the course of time, the plates became somewhat worn with age, and required to be redrawn. The text, also, although retaining its original value as a presentation of the subject, was found to differ materially in respect to the order of presentation from that adopted in our leading technical schools. It was thought, therefore, that some advantage might be gained, and the work better fitted for use as a text-book, by recasting it in accordance with what experience had shown to be a more acceptable arrangement of its several parts. The Editor, acting under the most liberal instructions from the Publishers, has endeavored to carry out the aims indicated above as thoroughly as time and other circumstances would per mit, and with the loyal purpose of preserving intact as much of the Author's text as possible. While it is quite certain that there is still much room for improvement in the work as now pre sented, it is hoped that the changes and additions in both the ten and plates will, in some degree, merit the approval of teachers. The intermingling of two separate writings on almost every page renders it inexpedient to attempt to point out all the changes which have been made. Nor is any discrimination necessary; instructors and others who are familiar with the original work will readily perceive the alterations. It may be stated in this connection, however, that the extensive additions which have been made in the first part of the work have been introduced in the hope of rendering it more serviceable to those who may not have the benefit of a teacher's guidance. 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.
Excerpt from A Text-Book of Topographical Drawing This book is offered to supply the need which several years' experience in giving instruo tion to students of engineering led the author to perceive. It presents the technical details of topographical drawing, together with problems involving the design of earthwork structures, and calculations relating to them. A leading feature of the other books of the Technical Drawing Series has been fol lowed; namely, the presentation of exercises and problems each with a definite lay-out, thus adapting the book for use in large classes. It is assumed that the student will have acquired some proficiency in mechanical drawing before taking up the work here presented, therefore the descriptions of instruments and explanations of processes do not include those which are ordinarily given in a good course in mechanical drawing. Indeed, the aim throughout the preparation of the book has been to avoid duplicating anything that the student may well learn from some other source; also to gather into form immediately available to a draftsman those things which his other books cannot consistently include, or which are not presented in a sufficiently concrete form to be of the greatest use. 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.
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This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Excerpt from Manual of Topography, and Text-Book of Topographical Drawing: For the Use of Officers of the Army and Navy, Civil Engineers, Academies, Colleges, and Schools of Science In giving directions for drawing and copying the plates, it was deemed necessary to modify the method hitherto in use, in order to avoid, as much as possible, the technical difficulties which could have been overcome in the old way only by much practice and loss of time, and to facilitate the process by axpe diente, so as to enable the student to produce in less time not only correct but even well-executed copies. 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.
Excerpt from The Plane-Table and Its Use in Topographical Surveying: From the Papers of the United States, Coast Survey Topography is that branch of surveying by which any portion of the land surface of the earth is mapped in plan on a specified scale or proportion of nature. With the plane-table such a map is constructed on the ground by at once drawing upon the paper, which is Spread upon the table, the angles subtended by different objects, and determining by intersections their relative positions, instead of reading off the angles on graduated instruments and afterward plotting the lines by means of a protractor, as is done in other methods of surveying. The practice with the plane-table has in this respect a great advantage in directness and precision. The measurement of distances and of vertical angles are used, in conjunction with the method of intersections, to obtain all the data for representing the horizontal and vertical features on the map, which is drawn in the field with pencil, the details being filled in according to established conventional signs. The plane-table of the Coast Survey (see Sketch No. 30) is composed of a well-seasoned drawing-board, with beveled or rounded edges, about thirty inches in length, twenty-four in width, and three-quarters of an inch thick. It is commonly made of several pieces of white pine, tongued and grooved together, with the grain running in different directions to prevent warping. It is supported upon three strong brass arms, to which it is fastened by screws passing through4 treatise ON the plane-table. 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.