Excerpt from A Treatise on Communication by Telegraph This book treats solely of the Law of Communication by Telegraph. The telegraph is of great and growing im
A pioneering work of telecommunications engineering, this classic textbook provides a detailed overview of the scientific principles and practical techniques in
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the p
Excerpt from International Cable Communication: Statement of Clarence H. Mackay, President, Commercial Cable-Postal Telegraph System, Before the Senate Committe