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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