THE
COLLECTED
PAPERS OF
Albert
Einstein
VOLUME
3
THE
SWISS YEARS:
WRITINGS,
1909-1911
Martin
J.
Klein,
A.
J.
Kox,
Jürgen Renn,
and Robert
Schulmann
EDITORS
Jed Buchwald, Jean
Eisenstaedt,
Don
Howard,
John Norton,
and
Tilman Sauer
CONTRIBUTING EDITORS
Ann
Lehar,
Rita
Lübke,
Annette
Pringle,
and Shawn
Smith
EDITORIAL ASSISTANTS
Princeton
University
Press
1993