Invention: The Master-key to Progress
Cover

INVENTION, THE MASTER-KEY
TO PROGRESS


INVENTION

THE MASTER-KEY
TO PROGRESS

BY
REAR-ADMIRAL BRADLEY A. FISKE, LL.D.
UNITED STATES NAVY

Former Aid for Operations of the Fleet, President U. S. Naval Institute,
Gold Medallist of U. S. Naval Institute, the Franklin Institute
and the Aero Club of America.

Author of "Electricity in Theory and Practice," "War Time in Manila,"
"The Navy as a Fighting Machine," "From Midshipman to
Rear-Admiral," "The Art of Fighting," etc.

Inventor of the Gun Director System, the Naval Telescope Sight, the Stadimeter,
the Turret Range Finder, the Horizometer,
the Torpedoplane, etc., etc., etc.

NEW YORK
E. P. DUTTON & COMPANY
681 Fifth Avenue

Copyright, 1921,
By E. P. Dutton & Company

All Rights Reserved

PRINTED IN THE UNITED
STATES OF AMERICA


                                                                                                                                                                                                                                                                                                           

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