Adamski, Józef Stanisław (1854–1926)
Paulsen, Friedrich (1846–1908)
Cathrein, Victor (1845–1931)
Kempner, Stanisław Aleksander (1857–1924)
Schneider, Stanisław (1858–1917)
Polskie Towarzystwo Filozoficzne (Lwów)
Jacques, Amédée Florent (1813–1865) Simon, Jules (1814–1896) Saisset, Émile Edmond
Twardowski, Kazimierz (1866–1938)
Twardowski, Kazimierz (1866–1938)
Twardowski, Kazimierz (1866–1938)
Twardowski, Kazimierz (1866–1938)
Twardowski, Kazimierz (1866–1938)
Twardowski, Kazimierz (1866–1938)
Twardowski, Kazimierz (1866–1938)
Twardowski, Kazimierz (1866–1938)
Twardowski, Kazimierz (1866–1938)
Twardowski, Kazimierz (1866–1938)
Twardowski, Kazimierz (1866–1938)
Twardowski, Kazimierz (1866–1938)
Twardowski, Kazimierz (1866–1938)
Twardowski, Kazimierz (1866–1938)