WIA GC/1904/132 | Förster, Max Eduard to Warburg, Aby 20/08/1904 | Werner von Melle invites Warburg to give lectures in the second half of the winter semester |
WIA GC/1905/150 | Förster, Max Eduard to Warburg, Aby 26/06/1905 | Pia Gelati asked him to inform Warburg that she will spend the winter in London and will... |
WIA GC/1905/151 | Förster, Max Eduard to Warburg, Aby 03/07/1905 | Miss Pia Gelati cannot send her apologies to cancel an appointment with Warburg as she had to... |
WIA GC/1905/153 | Förster, Max Eduard to Warburg, Aby 05/09/1905 | replies that the fee for six lectures is Mark 240.- |
WIA GC/1905/154 | Förster, Max Eduard to Warburg, Aby 05/1905 | forwards an enclosure [not extant], the invitation to the first meeting of the 'Verein deutscher... |