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Excerpt from Terrestrial Magnetism, Vol. 15: Results of Magnetic Observations Made by the United, States Coast and Geodetic Survey Between, July 1, 1911, and December 31, 1912 The distribution of the stations on land is shown in the following table, from which it will be seen that Observations were made in 35 States and Territories. Numerous Old stations were reoccupied in order to determine the secular change of the magnetic elements. 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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