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-Æsthetic
formulation of linguistic problems—Nature of language-Origin