Pretty sure he's German (https://translate.google.com/?hl=de&sl=de&tl=en&text=Sitzung&op=translate).
Bake me a bread, but don't use any flour or water!
The psittacosis pandemic of 1929-1930 would be my guess.
It was mentioned in the psittacosis article someone posted.
Sinaf
joined 1 year ago
https://en.wikipedia.org/wiki/1929%E2%80%931930_psittacosis_pandemic