7 6 8 A L P H A B E T I C A L L I S T O F C O R R E S P O N D E N C E Einstein, Elsa to Heinrich Zangger 30 December 1927 346 C 21 March–1 April 1928 459 C 22 March 1928 461 C Einstein, Elsa to Slava Zaycoff after 4 July 1928 636 C Einstein, Hans Albert 22 June 1927 30 CE 11 July 1927 20 E 7 August 1927 34 E 19 September 1927 57 E 24 September 1927 150 CE 3 October 1927 171 C 21 January 1928 138 E 5 February 1928 425 C 22 March 1928 460 C 31 March 1928 164 E 12 May 1928 190 E 22 July 1928 242 E 25 November 1928 761 CE 1050 C Einstein, Hans Albert and Frieda Einstein- Knecht 23 March 1929 1050 CE Einstein, Hermann and Pauline 26 September 1897 Vol. 1, 35a E Einstein, Margot 22 July 1927 68 CE July–September 1928 235 E Einstein, Margot and Ilse Kayser-Einstein 18 February 1928 150 E Einstein, Otto after 14 March 1929 1004 CE Einstein, Pauline 5 September 1900 Vol. 1, 74a E Einstein, Pauline and Hermann 26 September 1897 Vol. 1, 35a E Einstein-Knecht, Frieda and Hans Albert Ein- stein 23 March 1929 1050 CE Einstein-Marić, Mileva 2 August 1927 32 E before 11 December 1927 102 11 January 1928 131 E ca. 2–10 April 1928 169 5 May 1928 183 E 4 June 1928 211 E after 14 June 1928 223 E on or after 10 August 1928 253 E Eisenhart, Luther Pfahler 18 January 1929 840 C 2 February 1929 394 E 23 February 1929 413 Elektrotechnische Zeitschrift 7 January 1928 379 C 11 January 1928 388 CE 19 January 1928 405 C Elfes, August 11 January 1928 389 C Elkan, Rolf 13 March 1929 972 C Emden, Robert 28 January 1929 857 C Enelow, Hyman G. 10 April 1929 1098 C Engel, Franz Joseph 21 December 1927 327 C 28 December 1927 342 CE Epstein, Paul S. 9 December 1927 101 Erlanger, Max 16 April 1929 501 E Europäische Revue 2 January 1928 363 C 18 January 1928 404 C Everling, Otto 24 April 1928 495 C 1 May 1928 511 C