University of Virginia Library

EDISON
HIS LIFE AND INVENTIONS

IN TWO VOLUMES

ILLUSTRATED

VOL II

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