understanding of words by infantile, [123];
spontaneous invention of words by, [138-143];
indicative stage of language in, [158], [218-222], [324];
denotation and connotation of, [179], [191], [218-231], [283-285];
recognizing portraits, &c., [188], [189];
rise of self-consciousness in, [200-212];
use of personal pronoun by, [201], [232], [408], [409];
hypothesis of languages having been originated by, [259-263];