As during the preceding eight years, the _Critica_ continues to this day to be the main organ of Croce's work and influence, and in the Critica the greatest part of his writings are still published for the first time. The general features of the Critica have remained practically unchanged, except that his series of essays on the Italian literature of the last fifty years (which he collected in 1914-15 in the four volumes of _La Letteratura della Nuova Italia_) has been followed by studies on Italian historiography from the beginning of the nineteenth century to our day (since 1914), by essays on some of the greatest European poets (since 1917), by notes on modern Italian and foreign literature (since 1917), and by the Frammenti di Etica (since 1913), containing discussions of particular problems of contemporary morality. But practically all the reviews and essays published in the Critica and elsewhere are now being collected in the edition of his complete works, of which a full list will be found at the end of this volume. In 1912, for the inauguration of the Rice Institute in Houston, Texas, he wrote his _Breviario di Estetica_, which we have partly utilized in our exposition of his æsthetic doctrine, and which he reprinted in 1920 in his _Nuovi Saggi di Estetica_, which also contains his most significant philosophical essays of the last four or five years. His _Contributo alla critica di me stesso_ ("Contribution to the Criticism of Myself") was written in April, 1915, on the eve of Italy's entrance into the war, and is the best essay in existence on the development of his thought.