Everything he published in later life may be called a commentary, an excursus or a scholium to his main book; and many of them are decidedly of the nature of commonplace books or collectanea of notes.
Zahn's excursus and Prof. Lake in Expositor, March 1906, p. 236 f.) throws a slight doubt on the interpretation of ii.
In accordance with this we can give the relative positions of the various tribes, and an excursus on the rivers (47-57) lets us define their actual seats.
See Driver, Commentary on Genesis, excursus i.
His career may be studied in Hesiod; in the splendid Prometheus vinctus of Aeschylus, with the scholia; in Heyne's Apollodorus; in the excursus (I) of Schi zius to the Aeschylean drama, and in the frequently quoted work of Kuhn.
In a special excursus of considerable length he has paid a tribute of the highest order to monachism, and in his characterization of Theodosius II.