Chapter XV
.
[372] Cf. Sackür, _Die Cluniacenser_, ii. 330 _sqq._; Pfister. _Études sur le règne de Robert le Pieux_, p. 2 _sqq._ (the latter takes an extreme view).
[373] Aimoin’s _Vita Abbonis_, cap. 7 (Migne, _Pat. Lat._ 139, col. 393). The same volume contains most of Abbo’s extant writings, and those of Aimoin. On Abbo see Sackür, _Die Cluniacenser_, ii. 345 _sqq._
An incredibly large number of students are said to have attended Abbo’s lectures. His studies and teaching lay mainly in astronomy, mathematics, chronology, and grammar. The pupil Aimoin cultivated history and biography, compiling a History of the Francs and a History of the miracles of St. Benedict, the latter a theme worthy of the tenth century. One leaves it with a sigh of relief, so barren was it save for its feat of gestation in giving birth to Gerbert.
[374] Jotsaldus, _Vita Odilonis_ (Migne 142, col. 1037).
[375] Odilo, _Vita Maioli_ (Migne 142, col. 951).
[376] See Taylor, _Classical Heritage of the Middle Ages_, p. 74 _sqq._ One may compare the influence of Cicero’s _De amicitia_ on the _De amicitia Christiana_ of Peter of Blois (cir. 1200), Migne 207, col. 871-898.
[377] _Vita Odilonis_, chaps. vi.-xiii. (Migne 142, col. 909 _sqq._).
[378] _Bellum Gallicum_, vi. 13.
[379] Migne 143, col. 1290.
[380] For a description of these works, see _post_,