ALPHABETICAL LIST OF CORRESPONDENCE In this alphabetical list of texts, the number following each date is the document number. Documents abstracted in the Calendar of Abstracts are indicated by the abstract number, followed by the letter ‘C.’ Documents written by Einstein, or by his secretary on his behalf, are indicated by the letter ‘E.’ Aall, Anathon 23 December 1926 692 C 4 February 1927 737 C [Abgeordneter] 26 April 1926 433 C Academy of Sciences of the USSR 18 December 1926 683 C E Alberini, Coriolano 17 June 1925 10 C Alexander, Jerome 31 August 1925 93 C 21 September 1925 114 C 3 December 1925 214 C Allgemeen Handelsblad 4 November 1925 175 C Allgemeiner Blindenverein 17 May 1926 462 C Amzalak, Moses 3 April 1927 817 C E Ansbacher-Rießer, Julie before 5 June 1925 1 E 26 August 1925 90 C 5 October 1926 588 C Anschütz-Kaempfe, Hermann 4 August 1925 37 E 31 August 1925 57 E 15 November 1925 110 after 15 November 1925 111 3 November 1925 174 C 23 April 1926 263 23 October 1926 393 E 6 November 1926 628 C Anschütz-Stöve, Reta 15 October 1926 596 C Apfel, Alfred 15 December 1926 678 C Archenhold, Friedrich 14 October 1926 595 C 23 October 1926 394 E 29 October 1926 618 C Arco, Count Georg von 25 February 1927 775 C after 25 February 1927 490 E Arco, Count Georg von M. Deri Joseph Petzoldt, et al. before 25 February 1927 774 C Arnhold, Hans 5 July 1926 532 C Arnhold, Bankhaus Gebr. 6 November 1926 629 C