Columbia subject headings:
Beneke, Friedrich Eduard, 1798-1854.
Fechner, Gustav Theodor, 1801-1887.
Herbart, Johann Friedrich, 1776-1841.
Lotze, Hermann, 1817-1881.
Wundt, Wilhelm Max, 1832-1920.
Harvard subject headings:
Beneke, Friedrich Eduard, 1798-1854.
Fechner, Gustav Theodor, 1801-1887.
Germany
Herbart, Johann Friedrich, 1776-1841.
Lotze, Hermann, 1817-1881.
Wundt, Wilhelm Max, 1832-1920
Princeton subject headings:
Beneke, Friedrich Eduard, 1798-1854.
Fechner, Gustav Theodor, 1801-1887.
Herbart, Johann Friedrich, 1776-1841.
Lotze, Hermann, 1877-1881.
Wundt, Wilhelm Max, 1832-1920.