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 7 6 5 Posse, Hans 30 January 1922 61 C Prausnitz, Paul 1 February 1923 503 C 4 February 1923 504 C E Pringsheim, Peter 19 July 1922 300 Provinciaal Utrechtsch Genootschap 23 July 1922 347 C Prussian Academy of Sciences 13 March 1922 81 E 12 July 1922 280 E Pupin, Michael I. 4 March 1923 439 Quidde, Ludwig 5 February 1923 507 C Quint, Heinz 15 April 1922 156 C Rolland, Madeleine 2 February 1922 68 C Rathenau, Mathilde after 24 June 1922 245 E after 24 June 1922 249 Rebholz, Ludwig G. and Abram Stolkind 13 January 1922 22 C Reclam 3 May 1922 191 C Regener, Erich 20 April 1922 162 C Reichenbach, Hans 27 March 1922 119 E 20 September 1922 366 E Reinstein, Adolf 2 May 1922 187 C 16 May 1922 220 C E Reinstein, Louis 10 January 1922 17 C E Renaissance publishing house 31 August 1922 385 C 4 September 1922 391 C E 8 September 1922 399 C 12 September 1922 399 C E Revista del Centro Estudiantes de Ingenieria 31 May 1922 251 C E Rienzi, Raymond de 6 July 1922 267 15 September 1922 355 Rignano, Eugenio 25 September 1922 421 C Robertson, Clarence H. 5 July 1922 317 C Rolland, Madeleine 15 February 1922 51 E Rolland, Romain 6 April 1922 144 C 19 April 1922 152 E 21 April 1922 158 30 September 1922 375 E Rosenbaum, Bernard 23 January 1922 42 C 12 February 1922 78 C Rosenberg, Hans von 4 December 1922 465 C 16 December 1922 477 C E Rosenblüth, Felix 30 April 1922 183 C 19 May 1922 196 E Rotterdamsch Natuurkundig Genootschap 11 July 1922 328 C Roy, D. 31 March 1922 138 C Sauter, Josef 1 January 1923 488 C