Author: Daniel L. Hazard
Publisher: Forgotten Books
Published: 2017-11-23
Total Pages: 264
ISBN-13: 9780331774238
DOWNLOAD EBOOK →Excerpt from United States Magnetic Tables and Magnetic Charts for 1915 It is customary to represent graphically the results of a magnetic survey by means of maps on which lines are drawn through all places having the same value of a particular magnetic element. Maps showing the lines of equal declination, inclination, and intensity are called, respectively, isogonic, isoclinic, and isodynamic charts. In the preparation of such charts all of the results must be reduced to a common epoch by means of the secular change data derived from repeated observations at selected stations. 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.
Author: U.S. Coast and Geodetic Survey
Publisher:
Published: 1929
Total Pages: 152
ISBN-13:
DOWNLOAD EBOOK →Author: U.S. Coast and Geodetic Survey
Publisher:
Published: 1917
Total Pages: 256
ISBN-13:
DOWNLOAD EBOOK →Author: U.S. Coast and Geodetic Survey
Publisher:
Published: 1917
Total Pages: 276
ISBN-13:
DOWNLOAD EBOOK →Author: United States Coast and Geodetic Survey
Publisher: Palala Press
Published: 2016-05-21
Total Pages: 262
ISBN-13: 9781358382314
DOWNLOAD EBOOK →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.