Invention: The Master-key to Progress

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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

To show that inventors have accomplished more than most persons realize, not only in bringing forth new mechanisms, but in doing creative work in many walks of life, is, in part, the object of this book. To suggest what they may do, if properly encouraged, is its main intention. For, since it is to inventors mainly that we owe all that civilization is, it is to inventors mainly that we must look for all that civilization can be made to be.