on origin of the personal pronoun, [210];

on evolution of language, [241];

on demonstrative elements, [244], [423];

on roots of Sanskrit, [267-289];

on undifferentiated language of young children, [296], [317];

on sentence-words, [298-300], [317];

on gesture origin of pronouns, [302],

and of language in general, [354];

on origin of adjectives, [306];

on the origin of verbs, [307];