"Telegraph" Article - Table of Contents
Part 1. Telegraph - Introduction
Part 2. Historical Sketch of Early Telegraphs
Part 3. General Description of Electric Telegraphs for Land and Sea
Part 4. Modern Telegraphs
The above article was written by Thomas Gray, B.Sc., F.R.S.E.; Glasgow.
About this Encyclopedia Top Contributors All Contributors Today in History
© 2005-18 1902 Encyclopedia. All Rights Reserved.
This website is the free online Encyclopedia Britannica (9th Edition and 10th Edition) with added expert translations and commentaries