WIA GC/1905/463 | Puttkamer, Jesco von to Warburg, Aby 14/09/1905 | he has approached Geheimrat Lingner in the matter of funding Hayfever research, but he has declined |
WIA GC/1906/538 | Warburg, Aby to Puttkamer, Jesco von 15/09/1906 | O. Schultz cannot increase donations for research into hayfever so that Warburg advises not to... |