References for Professor Norton's Lecture.

V. The Divine Comedy. - Purgatory.

As to the doctrine of Purgatory, held by the Church in the thirteenth century, that part of the Tractatus de Resurrection of St. Thomas Aquinas, should be read which relates to it; Summa Theologica, Suppl. qu. 1xix, 1xxii. The treatise contains much else of great importance in illustration of the theology of the Divine Comedy.

The comment of Philalethes, King John of Saxony, accompanying his translation of the poem is of value from its general intelligence and its numerous citations from the schoolmen.

But the most important comments for the student are those of the fourteenth century, especially that in the Latin of Benvenutus de Imola, and that in Italian by Francesco da Buti. In his Readings of the Purgatory of Dante, 2 vols., 12mo., London, 1889, the Hon. W. W. Vernon has closely followed and translated Benvenuto's comment to the great benefit of readers unacquainted with Latin.

In the Dante-Forschungen, 2 vols., 8vo., Halle, 1869-79, of Karl Witte, the most eminent of the scholars of Dante, is an essay which should be read on "Dante's Sunden-system in Holle und Fegefeuer."

The Jahrbuch der deutschen Dantegesellschaft, 1869, ii, 99-150, contains a paper worth reading by Scartazzini on "Dante's Vision im irdischen Paradiese," followed, pp. 157-168, by one on the same subject by L. Witte.