WIA GC/1896/83 | Witkowski, Georg to Warburg, Aby 20/06/1896 | thanks him for a copy of 'Costumi Teatrali'; he is also working on the history of the opera |
WIA GC/1905/111 | Doren, Alfred to Warburg, Aby 01/03/1905 | asks why Warburg has not come to Leipzig as promised?; on their friends in Leipzig, Fl. Fr... |
WIA GC/1905/644 | Witkowski, Georg to Warburg, Aby 23/10/1905 | the '48. Versammlung deutscher Philologen und Schulmänner' gave him opportunity to deepen his... |
WIA GC/1905/645 | Warburg, Aby to Witkowski, Georg 26/10/1905 | thanks him for a letter and two books by the author on Goethe; he will take them with him to... |
WIA GC/1905/646 | Witkowski, Georg to Warburg, Aby 29/10/1905 | he is looking forward to welcoming Warburg in Leipzig; he cannot make out Schmarsow; on the... |