Note 2867 — Chapter XXX · GERBERT AND THE INTRODUCTION OF ARABIC ASTROLOGY
Reading edition
BN 17868, fol. 14r-16v. The letter of Petosiris on the sphere of life and death at fol. 13r-v “Incipit epistola Phetosiri de sphaera” separates this treatise or fragment from the preceding liber Alchandri philosophi. Also this treatise is in a different and slightly older hand than fols. 2-13 are, or at least such was Bubnov’s opinion (1899), 125, note.