habilitation

habilitation

Letter to Władysław Tatarkiewicz written 26.10.1965

Letter from Kazimierz Twardowski written 31.12.1927

Letter to Władysław Tatarkiewicz written 18.06.1960

Letter to Kazimierz Twardowski written 27.05.1924

Letter to Kazimierz Twardowski written 22.02.1925

Letter to Kazimierz Twardowski written 26.05.1924

Letter to Kazimierz Twardowski written 27.01.1923

Letter from Kazimierz Twardowski written 08.01.1925

Letter to Kazimierz Twardowski written 14.01.1925

Letter from Mieczysław Wallis written 19.01.1962

Letter from Kazimierz Twardowski written 16.03.1924

Letter from Władysław Witwicki written 03.05.1922