Search for: [Subject and Keywords = Twardowski, Kazimierz \(1866\-1938\) \-\- archives] OR [Subject and Keywords = Polish manuscripts \(19 c.\)] OR [Subject and Keywords = Polish philosophy \(19 c.\)] OR [Subject and Keywords = Rękopisy polskie \-\- 19 w. \[JHPBN\]] OR [Subject and Keywords = Twardowski, Kazimierz \(1866\-1938\) \-\- archiwalia \[JHPBN\]] OR [Subject and Keywords = Filozofia \-\- Polska \-\- 19 w. \[JHPBN\]] OR [Title = O złudzeniach wzrokowych \: Kurs zimowy 1898\/9 1 godz.\[ina\] tyg.\[odniowo\]] OR [Title = O złudzeniach wzrokowych \: Kurs zimowy 1898\/9 1 godz.\[ina\] tyg.\[odniowo\]] OR [Creator = Twardowski, Kazimierz \(1866–1938\)] OR [Creator = Twardowski, Kazimierz \(1866–1938\)]