Search for: [Subject and Keywords = Kraczkiewicz, Zygmunt \(1900\-1971\)] OR [Subject and Keywords = zoologists] OR [Subject and Keywords = cytologists] OR [Subject and Keywords = Chair of Zoology UW] OR [Subject and Keywords = biologists \- Poland \- biography] OR [Subject and Keywords = Tur, Jan Korczak \(1875\-1942\) \- students] OR [Subject and Keywords = Kraczkiewicz, Zygmunt \(1900\-1971\)] OR [Subject and Keywords = zoolodzy] OR [Subject and Keywords = cytolodzy] OR [Subject and Keywords = Zakład Zoologii UW] OR [Subject and Keywords = Biolodzy \-\- Polska \-\- biografie] OR [Subject and Keywords = Tur, Jan Korczak \(1875\-1942\) \- uczniowie] OR [Title = Zygmunt Kraczkiewicz] OR [Title = Zygmunt Kraczkiewicz]