WIA FC/1913/2/4 | Hertz, Wilhelm to Warburg, Aby 01/10/1913 | the weather is very good, hopes that Warburg has the same weather in Baden-Baden; Mr. Herrmann... |
WIA GC/1910/437 | Münsterberg, Hugo and Kiesselbach, Wilhelm to Warburg, Aby [1910] | the Director introduces the newly opened Amerika-Institut, 'which is not an American, but a... |
WIA GC/1911/563 | Münsterberg, Hugo to Warburg, Aby 04/01/1911 | apologizes for being absent from his office when Warburg called |
WIA GC/1916/229 | Haas, Hans to [Beckh, Hermann?] 18/06/1916 | thanks him for a book 'Buddhismus'; Haas, as the director of a national research institute for... |