Cutbert, Z. S.

Marchlewski, Julian (1866–1925)

Janowicz, Ludwik (1858–1902)

Perl, Feliks (1871–1927)

Dawid, Jan Władysław (1859–1914)

Beck, Adolf (1863–1942)

Dybowski, Benedykt (1833–1930)

Schopenhauer, Arthur (1788–1860)

Ostwald, Wilhelm (1853–1932)

Garfein-Garski, Stanisław (1867–1928)

Bouglé, Célestin Charles Alfred (1870–1940)

Jevons, William Stanley (1835–1882)

Biegański, Władysław (1857–1917)

Jaworski, Jan (1865- ?)

Kozłowski, Władysław Mieczysław (1858–1935)

Bebel, August (1840–1913)

Lafargue, Paul (1842–1911)

Appel, Karol (1857–1930)

Kon, Feliks (1864–1941)

Morawski, Marian Ignacy (1845–1901)

Greulich, Hermann (1842–1925)

Jodl, Friedrich (1849–1914)

Kelles-Krauz, Kazimierz (1872–1905)

Dmochowski Jan (1877–1928)

Naudet, Paul (1859–1929)