WIA GC/10206 | Warburg, Aby to Warburg, Mary 24/06/1903 | thanks her for forwarding a letter by Tilli [Mathilde Jolles]; Tilli is a wonderful woman; wants... |
WIA GC/1514 | Baerwald, Richard to Warburg, Aby 02/09/1905 | Baerwald sent Warburg a questionnaire not so much about aesthetic problems of the farcical, but... |
WIA GC/1515 | Baerwald, Richard to Warburg, Aby 01/10/1905 | thanks Warburg for the replies to his questionnaire; thanks Warburg for his good services in... |
WIA GC/1516 | Baerwald, Richard to Warburg, Aby 22/10/1905 | discusses further points of his questionnaire, notably [Theodor] Lipps' theory of comparison and... |
WIA GC/1545 | Warburg, Aby to Baerwald, Richard 21/10/1905 | Warburg reports on Dritter Kunsterziehungstag, the congress of art education, which was a disaster |