THE COLLECTED PAPERS OF
VOLUME 7
THE BERLIN YEARS: WRITINGS, 1918-1921
Michel Janssen, Robert Schulmann Jozef Illy, Christoph Lehner, and Diana Kormos Buchwald EDITORS
Daniel Kennefick, A. J. Kox, and David Rowe ASSOCIATE EDITORS
R. Hirshmann, O. Moses, A. Mynttinen, A. Pringle, and R. Fountain EDITORIAL ASSISTANTS
ENGLISH TRANSLATION OF SELECTED TEXTS Alfred Engel, TRANSLATOR Engelbert Schucking, CONSULTANT
DOC. 71
Four Lectures on the Theory of Relativity, Held at Princeton University in May 1921
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