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.’ Alexander, Jerome 11 December 1924 576 C 1 February 1925 644 C Allgemeine Zeitung 30 April 1924 348 C 2 January 1925 411 E American Academy of Arts and Sciences 14 May 1924 3543 C 20 June 1924 381 C E Amsler & Ruthardt 9 May 1923 48 C Amsterdam Studentenvereeniging (Natuur- Philosophische Faculteit) 22 September 1923 169 C Ansbacher, Guido 20 May 1925 687 C Ansbacher, Luigi 12 February 1924 301 C Anschütz-Kaempfe, Hermann 8 April 1923 6 E 10 April 1923 8 24 July 1923 90 26 July 1923 92 E 8 September 1923 110 E 27 September 1923 173 C 6 December 1923 172 26 December 1923 184 E 27 February 1924 218 E 20 July 1924 289 9 November 1924 367 after 17 Nov 1924 372 17 February 1925 439 E Anschütz-Kaempfe, Hermann and Reta Anschütz-Stöve 16 August 1923 101 E Anschütz-Stöve, Reta 9 February 1924 210 E 17 February 1924 211 23 February 1924 213 E Arce, José and Mauricio Nirenstein 31 December 1923 238 C 7 January 1924 250 C 16 May 1924 356 C Arco, Georg Count von 13 September 1923 114 16 September 1923 117 E Arrhenius, Svante 21 May 1923 59 C 26 May 1923 44 E 2 July 1923 112 C E 21 September 1923 168 C 1 October 1923 176 C E