1902 Encyclopedia > Telephone

Telephone

"Telephone" Article - Table of Contents

IA. INTRODUCTION
Part 1. Telephone - Introduction

IB. HISTORY OF THE TELEPHONE
Part 2. History of the Telephone

II. TELEPHONIC INSTRUMENTS
Part 3. Telephonic Instruments
Part 4. Telephonic Circuits

Part 5. The Working of Telephone Circuits




The above article was written by Thomas Gray, B.Sc., F.R.S.E.; Glasgow.





About this EncyclopediaTop ContributorsAll ContributorsToday in History
Sitemaps
Terms of UsePrivacyContact Us



© 2005-23 1902 Encyclopedia. All Rights Reserved.

This website is the free online Encyclopedia Britannica (9th Edition and 10th Edition) with added expert translations and commentaries