Search for: [Subject and Keywords = Zaćwilichowski, Jan \(1890\-1951\)] OR [Subject and Keywords = zoologists] OR [Subject and Keywords = naturalists] OR [Subject and Keywords = entomologists] OR [Subject and Keywords = textbooks authors] OR [Subject and Keywords = teachers] OR [Subject and Keywords = biologists \- Poland \- biography] OR [Subject and Keywords = Zaćwilichowski, Jan \(1890\-1951\)] OR [Subject and Keywords = zoolodzy] OR [Subject and Keywords = przyrodnicy] OR [Subject and Keywords = entomolodzy] OR [Subject and Keywords = autorzy podręczników] OR [Subject and Keywords = nauczyciele] OR [Subject and Keywords = Biolodzy \-\- Polska \-\- biografie] OR [Title = Jan Zaćwilichowski] OR [Title = Jan Zaćwilichowski]