paper

paper

Letter from Irena Sławińska written 1/31/1959

Postcard to Kazimierz Twardowski written 21.04.1923

Letter from Stefan Żółkiewski written in 26.11.1965

Letter to the Committee of the Library of Classics of Philosophy written 03.03.1954

Letter from Kazimierz Ajdukiewicz written 26.02.1961

Postcard to Kazimierz Twardowski written 10.08.1937

Letter from Irena Sławińska written 31.01.1959

Letter to the Committee of the Library of Classics of Philosophy written 14.05.1954

Letter from Stefan Żółkiewski written in 12.03.1966

Letter from Kazimierz Twardowski written 06.02.1923

Paper by Janina Makota presented 18.06.1956

Letter to the Polish Academy of Science written 28.04.1964