DigiCat Publishing presents to you this special edition of “The Chord of Steel” (The Story of the Invention of the Telephone) by Thomas B. Costain. DigiCat Publishing considers every written word to be a legacy of humankind. Every DigiCat book has been carefully reproduced for republishing in a new modern format. The books are available in print, as well as ebooks. DigiCat hopes you will treat this work with the acknowledgment and passion it deserves as a classic of world literature.