articulate, spontaneously imitated by children, [138-143];
of tone and gesture in relation to words, [145-162];
stages of, as indicative, denotative, connotative, denominative, and predicative, [157-193];
in relation to self-consciousness, [212];
growth of, in child, [218-237];
theories concerning origin of, in race, [238-242], [361-384];
evolution of, [240-245], [264], [265];
roots of, [241-245], [248], [249];
differentiation of, into parts of speech, [294-320], [339-342];
demonstrative elements of, [243-245];