Contributions to Terrestrial Magnetism

Contributions to Terrestrial Magnetism presents a detailed study of compass variation based on observations made within the United States Naval Service from 1881 to 1894. Authored by the United States Hydrographic Office and Chauncey Thomas, this historical record provides valuable insights into the challenges and techniques of navigation during this period. The book offers a comprehensive analysis of terrestrial magnetism, crucial for accurate seafaring and charting. This volume serves as a primary source for understanding the development of navigational science and the role of the U.S. Navy in advancing hydrographic surveying. It will be of interest to historians of science, maritime scholars, and anyone fascinated by the history of navigation and cartography.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.