Excerpt from Elements of Static Electricity: With Full Description of the Holtz and Töpler Machines and Their Mode of OperatingThe theory assumed is, that electricity is one of the forms in which energy manifests itself, that its nature is not changed by the means employed to generate it, and that the various terms, positive, negative, static, dynamic, express certain conditions and relations in which this manifestation occurs, and not different kinds of electricity.The author takes pleasure in acknowledging his obligations to Elisha Gray for the use of tables, giving the results of observations on earth currents, made under his direction on the Postal Telegraph line, also to Ferguson, Gordon, Silvanus P. Thompson, Ncad and Deschanel, from whose excellent works valuable assistance has been obtained, though he has felt compelled to dissent from some of their views.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.