See Driver, Commentary on Genesis, excursus i.
Hamilton encouraging the confusion by speaking of "psychology or metaphysics," 1 while his lectures on metaphysics are mainly taken up with what belongs in the strictest sense to psychology proper, with an occasional excursus (as in the theory of perception) into epistemology.
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.
40; " Excursus on Periodical Criticism," Saintsbury, History of Criticism (1904), iii.
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 a special excursus of considerable length he has paid a tribute of the highest order to monachism, and in his characterization of Theodosius II.