outgoing correspondence

outgoing correspondence

Letter to the Polish Academy of Science written 04.06.1966

Letter to Kazimierz Twardowski written 19.04.1932 (sprawdzić autora listu!?)

Letter to the Polish Academy of Science written 28.04.1964

Letter to Kazimierz Twardowski written 16.05.1924

Letter to Tadeusz Kotarbiński written 12.10.1949

Letter to Władysław Tatarkiewicz written 20.11.1952

Letter to Władysław Tatarkiewicz written 30.10.1966