



Produced by Dave Morgan and the Online Distributed Proofreading Team




[Illustration: MARCONI READING A MESSAGE]





STORIES OF INVENTORS


The Adventures Of Inventors And Engineers.
True Incidents And Personal Experiences

By


RUSSELL DOUBLEDAY



1904




ACKNOWLEDGMENT


The author and publishers take pleasure in acknowledging the courtesy of

  _The Scientific American_
  _The Booklovers Magazine_
  _The Holiday Magazine_, and
  Messrs. Wood & Nathan Company

for the use of a number of illustrations in this book.

From _The Scientific American_, illustrations facing pages 16, 48,
78, 80, 88, 94, 118, 126, 142, and 162.

From _The Booklovers Magazine_, illustrations facing pages 184, 190,
194, and 196.

From _The Holiday Magazine_, illustrations facing pages 100 and 110.




CONTENTS


  How Guglielmo Marconi Telegraphs Without Wires
  Santos-Dumont and His Air-Ship
  How a Fast Train Is Run
  How Automobiles Work
  The Fastest Steamboats
  The Life-Savers and Their Apparatus
  Moving Pictures--Some Strange Subjects and How They Were Taken
  Bridge Builders and Some of Their Achievements
  Submarines in War and Peace
  Long-Distance Telephony--What Happens When You Talk into a
    Telephone Receiver
  A Machine That Thinks--A Type-Setting Machine That Makes
    Mathematical Calculations
  How Heat Produces Cold--Artificial Ice-Making




LIST OF ILLUSTRATIONS


  Marconi Reading a Message      _Frontispiece_

  Marconi Station at Wellfleet, Massachusetts
  The Wireless Telegraph Station at Glace Bay
  Santos-Dumont Preparing