University of Virginia Library



EDISON
HIS LIFE AND INVENTIONS
IN TWO VOLUMES
ILLUSTRATED
VOL I

BY

FRANK LEWIS DYER

GENERAL COUNSEL FOR THE EDISON LABORATORY
AND ALLIED INTERESTS
AND

THOMAS COMMERFORD MARTIN

EX-PRESIDENT OF THE AMERICAN INSTITUTE
OF ELECTRICAL ENGINEERS

NEW YORK AND LONDON
HARPER & BROTHERS PUBLISHERS
1910 Copyright, 1910, HARPER & BROTHERS
Published November, 1910.
Printed in the United States of America