Hegel, on absence in brutes of the idea of causality, [58];

on self-consciousness, [212]

Heinieke on words spontaneously invented by deaf-mutes, [367]

Hen, different tones used by, as signs to chickens, &c., [96]

Herder, on the origin of speech, [240];

on the original concretism of language, [359]

Herzen on self-consciousness, [212]

Heyse, on onomatopœia, [285], [287];

on the origin of speech, [289];

on fundamental metaphor, [344];