It was naturally in the libraries that most of the literary treasures were stored. In the fifteenth century there were two libraries in the Franciscan convent at Oxford, the library of the convent and the library of the student friars[385]. There is no evidence that either was founded by Grostete[386]. The convent probably received its first considerable collection of books from Adam Marsh, to whom his uncle, Richard Marsh, Bishop of Durham, bequeathed his library in 1226[387]. The next book we hear of at the Grey Friars is the volume of Decretals purchased by Agnellus[388]--doubtless the _Decretum_ of Gratian with the additions codified by Raymund of Pennaforte and approved by Gregory IX in 1230. In 1253, Grostete, ‘because of his love for Friar Adam Marsh, left in his will all his books to the convent of Friars Minors at Oxford[389].’ From a rather obscure passage in one of Adam’s letters[390], this would appear to mean all Grostete’s writings ‘both original and translated,’ not all the books which he possessed: on the other hand, a copy of St. Augustine’s _De Civitate Dei_ is extant which the friars received from Grostete[391]. These works of _Lincolniensis_ were in the library in the middle of the fifteenth century, when Dr. Thomas Gascoigne was allowed to consult them[392]. He mentions particularly having seen a complete copy of Grostete’s letters[393], his autograph gloss or exposition on the Epistles of St. Paul[394], two copies (one of them autograph) of his commentary on the Psalter[395], a treatise against luxury[396], and another _super textum_[397], both written by his own hand. Boston of Bury notices his translation of the _Testamenta XII Patriarcharum_ in the same place. Friar Thomas Netter of Walden refers to a book _De Studio_ by Grostete, with autograph notes by the author, which he had seen in the Minorite convent[398]; and Wadding mentions two more treatises, or rather sermons, which Grostete gave to the friars--one _De Laude Paupertatis_, the other _De Scala Paupertatis_[399]. Probably all these were in the library of the convent[400]. Another relic of Grostete preserved there was his ‘episcopal sandals made of rushes[401].’ The statement that all Roger Bacon’s works were in these libraries rests on the authority of John Twyne[402], but it is not probable that his writings were ever collected in one place. No doubt the works of the scholastic philosophers, and chiefly of the Franciscan schoolmen[403], formed the bulk of the library; which also contained a bibliographical compilation of considerable value, namely the _Catalogus illustrium Franciscanorum_, of which Leland often makes use[404]. St. Jerome’s ‘Catalogue of Illustrious Men,’ was there bound up with ‘many other good books[405],’ his commentaries on Isaiah and Ezechiel[406], a book called _Speculum Laicorum_[407], and a few Hebrew and even Greek manuscripts[408].