The electron, its isolation and measurement and the determination of some of its properties

by Robert Andrews Millikan

THE ELECTRON

ITS ISOLATION AND MEASUREMENT AND THE
DETERMINATION OF SOME OF
ITS PROPERTIES

BY

Robert Andrews Millikan

Formerly Professor of Physics, the University of Chicago
Director Norman Bridge Laboratory of Physics
California Institute of Technology

THE UNIVERSITY OF CHICAGO PRESS
CHICAGO, ILLINOIS

COPYRIGHT 1917 BY
THE UNIVERSITY OF CHICAGO
All Rights Reserved
Published August 1917
Second Impression February 1918
Third Impression November 1918
Fourth Impression December 1910
Fifth Impression February 1921
Second Edition October 1924

Composed and Printed By
The University of Chicago Press
Chicago, Illinois, U.S.A.

TO
ALBERT A. MICHELSON
AND
MARTIN A. RYERSON
THIS SMALL OUTGROWTH OF THEIR
INSPIRATION AND GENEROSITY
IS RESPECTFULLY DEDICATED