Excerpt from Wireless Telegraphy In this book the author has had in his mind's eye the reader who, possessing a general scientific knowledge, is anxious to know something, not only of the accomplishments of wireless, but also of the means by which they are attained. The subject is necessarily a highly technical one, and the first four chapters are devoted solely to explanations of the electrical phenomena involved. Which explanations it may be added are really little more than statements of facts illustrated where possible by mechanical analogy. The fifth and sixth chapters deal with the application of these principles to wireless apparatus, and from the seventh chapter onwards the book is devoted to a general survey of the uses to which wireless is nowadays put. No forecast of the future has been attempted as at the time of writing the developement is so rapid that it is beyond anyone to foresee the goal to which it is leading. A short bibliography has been added including most of the better known books on the subject. 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.