Philosophical Society

Philosophical Society

Letter to Kazimierz Twardowski written 23.07.1935

Letter from Hans Cornelius written 14.11.1937

Letter to Mieczysław Wallis written 16.10.1964

Letter from Irena Sławińska written 19.02.1954

Letter to Kazimierz Twardowski written 29.03.1923

Letter from Maria Turowicz written 01.11.1967

Letter to Kazimierz Twardowski written 04.03.1917

Letter from Kazimierz Ajdukiewicz written 18.04.1925

Letter to Kazimierz Twardowski written 02.06.1917

Letter from Władysław Witwicki written 11.04.1938

Letter from Kazimierz Ajdukiewicz written 14.06.1925

Postcard from Stefan Szuman written 22.10.1937