"He gave drink to thirsty minds at the fountain of the sciences. To some he communicated the art and the rules of grammar; for others he caused floods of rhetoric to flow; he knew how to exercise these in the battles of jurisprudence, and those in the songs of Adonis; some learned from him to pipe Castalian airs and with lyric foot to strike the summit of Parnassus; to others he made known the harmony of the heavens, the courses of the sun and the moon, the five zones of the pole, the seven planets, the laws of the courses of the stars, the motions of the sea, earthquakes, the nature of men, and of beasts and of birds, and of all that inhabit the forest. He unfolded the different qualities and combinations of numbers; he taught how to calculate with certainty the solemn return of Eastertide and, above all, he explained the mysteries of the Holy Scriptures."[64] The library of the school at York was particularly famous, and included the works of Jerome, Hilarius, Ambrose, Augustine, Athanasius, Orosius, Gregory, Leo, Basil, Fulgentius, Cassiodorus, Chrysostom, Aldhelm, Bede, Victorinus, Boethius, Pliny, Aristotle, Cicero, Virgil, etc. Mullinger remarks of this library: "The imposing enumeration at once calls our attention to the fact that the library at York at this period far surpassed any possessed by either England or France in the twelfth century, whether at Christ Church, Canterbury, St. Victor at Paris, or at Bec."[65] The school at York is also important because it is the first known instance in English educational history of the bishop's school being conducted by a member of the staff of clergy associated with the bishop, instead of by the bishop himself. On the death of Archbishop Albert, his successor, instead of taking personal charge of the school, entrusted that duty to Alcuin. This was a special case of the principle of the division of labour, and the example thus set at York was of considerable importance in the subsequent development of education in this country.