The practical activity of externalization—The technique of external-
ization - Technical theories of the different arts-Criticism of
æsthetic theories of particular arts—Criticism of the classification of
the arts—Criticism of the theory of the union of the arts—Relation
of the activity of externalization to utility and morality.
Summary of the study-Identity of Linguistic with Æsthetic--Asthetic
formulation of linguistic problems—Nature of language--Origin