Excerpt from A Treatise on Electricity and Magnetism, Vol. 1 The fact that certain bodies, after begin rubbed, appear to attend other bodies, was known to the ancients. In modern times, a great variety of other phenomena have been observed, and have been found to be related to these phenomena of attraction. They have been classed under the name of Electric phenomena, amber, having been the substance in which they were first described. Other bodies, particularly the loadstone, and pieces of iron and steel which have been subjected to certain processes, have also been long known to exhibit phenomena of action at a distance. These phenomena with others related to them, were found to differ form the electric phenomena, the loadstone, beign found in the Thessalian Magnesia. These two classes of phenomena have since been found to be related to each other, and the relations between the various phenomena have since been found to be related to related to each other, and the relations between the various phenomena of both classes, so far as they are known, constitute the science of Electromagnetism. 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.