T H E C O L L E C T E D PA P E R S O F
Albert Einstein
V O L U M E 9
T H E B E R L I N Y E A R S :
C O R R E S P O N D E N C E ,
J A N U A RY 1 9 1 9 – A P R I L 1 9 2 0
Diana Kormos Buchwald, Robert Schulmann, József Illy,
Daniel J. Kennefick, and Tilman Sauer
E D I T O R S
Virginia Iris Holmes, A. J. Kox, and Ze’ev Rosenkranz
A S S O C I A T E E D I T O R S
Rudy Hirschmann and Osik Moses
E D I T O R I A L A S S I S T A N T S
Princeton University Press
2004