Hilgendorf, [82].

His, Wilhelm, [56], [81], [106].

Huber, [175].

Humboldt, Wilhelm von, [17], [95].

Huxley, Thomas, [42], [50], [177], [198], [222], [279].

Jäger, Gustav, [51], [124], [214], [243].

Jellinghaus, [94].

Kant, [195], [282].

Keim, [18], [337].