Princeton University Press The Collected Papers of Albert Einstein, Volume – The Berlin Years: Correspondence, January–December 1921 (English translation supplem: 12

Every document in The Collected Papers of Albert Einstein appears in the language in which it was written, and this supplementary paperback volume presents the English translations of all non-English materials. This translation does not include notes or annotation of the documentary volume and is not intended for use without the original language documentary edition which provides the extensive editorial commentary necessary for a full historical and scientific understanding of the documents.