[691] Canon Law of 1179 and 1215 did not initiate the custom.

[692] See [Bk. I., Ch. II.]

[693] Grammar, rhetoric, and dialectic.

[694] Geometry, arithmetic, music, and astronomy.

[695] On the general subject, see Abelson, The Seven Liberal Arts, Parker, “The Seven Liberal Arts,” Eng. Hist. Rev., V., pp. 417-461, July 1890; Rashdall, Univ., I., pp. 33-37; West, Alcuin pp. 4-27.

[696] E. S. R., II., p. 56.

[697] E. S. R., II., p. 117.

[698] [Bk. II., ch. II.]

[699] Polycraticus, II., 28.

[700] Bk. II., ch. X.