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];