German edition

German edition

Letter to Kazimierz Twardowski written 14.02.1924

Letter to Stefan Żółkiewski written in 06.03.1966

Postcard from Stefan Morawski written 05.12.1965

Letter to Kazimierz Twardowski written 30.04.1919

Letter to Mieczysław Wallis written 22.01.1962