The canons of Ælfric were written between the years 950 and 1000. The authorities do not appear to be clear whether these canons were the work of the Archbishop or of a grammarian of the same name, while, according to one theory, the Archbishop and the grammarian were the same person. The canons were addressed to Wulfin, Bishop of Sherborn, and they were written in such a form that the Bishop might communicate them to his clergy as a kind of episcopal charge. The twenty-first canon orders: “Every priest also, before he is ordained, must have the arms belonging to his spiritual work; that is, the holy books, namely, the _Psalter_, the _Book of Epistles_, the _Book of Gospels_, the _Missal_, the _Book of Hymns_, the _Manual_, the _Calendar_ (_Computus_), the _Passional_, the _Penitential_, the _Lectionary_. These books a priest requires and cannot do without, if he would properly fulfil his office and desires to teach the law to the people belonging to him. And let him carefully see that they are well written.”[142] The library of the English monastery or priory was under the care of the chantor, who could neither sell, pawn, nor lend books without an equivalent pledge; he might, however, with respect to neighbouring churches or to persons of consideration, relax somewhat the strictness of this rule. In the case of a new foundation, the King sometimes sent letters-patent to the different abbeys requesting them to give copies of theological and religious books in their own collections. In certain instances, the King himself provided such transcripts for the new foundation. In the catalogue of the abbatial libraries of England, prepared by Leland, record is found of only the following classics: Cicero and Aristotle (these two appear in nearly all the catalogues), Terence, Euclid, Quintus Curtius, Sidonius Apollinaris, Julius Frontinus, Apuleius, and Seneca.[143] It is difficult from such a list to arrive at the basis or standard of selection.