Search for: [Subject and Keywords = Twardowski, Kazimierz \(1866\-1938\) \-\- archives] OR [Subject and Keywords = Polish philosophy \(19 c.\)] OR [Subject and Keywords = Polish manuscripts \(19 c.\)] OR [Subject and Keywords = Twardowski, Kazimierz \(1866\-1938\) \-\- archiwalia \[JHPBN\]] OR [Subject and Keywords = Filozofia \-\- Polska \-\- 19 w. \[JHPBN\]] OR [Subject and Keywords = Rękopisy polskie \-\- 19 w. \[JHPBN\]] OR [Title = Begr.\[iffs\]\-Eigenschaften] OR [Title = Begr.\[iffs\]\-Eigenschaften] OR [Creator = Twardowski, Kazimierz \(1866–1938\)] OR [Creator = Twardowski, Kazimierz \(1866–1938\)]