In one of its Homilies the same Vercelli MS. presents us with a translation of the Apocalypse of St. Thomas, a book of which until recently only the name was known. Two early MSS. contain short quotations in Latin from Cosmas Indicopleustes, a traveller of Justinian's time whose work remains only in a few copies, and is in Greek. Another has a fragment of the lost _Book of Jannes and Jambres_; another a chapter of the _Book of Enoch_, valuable as one of our few indications that a Latin version of it was current. John of Salisbury quotes a story about St. Paul which seems to come from the ancient apocryphal Acts of that Apostle. First on the list (twelfth century) of the library of Lincoln Minster (but lined through as if subsequently lost) is a title _Proverbia Grecorum_. What this book was is obscure; probably it was a translation from Greek by an Irish scholar. It is quoted extensively by Sedulius, the Irishman, and also in a collection of treatises by an unknown York writer (the Germans call him the _Yorker anonymus_) of the eleventh to twelfth centuries. The work of Irenæus _Against Heresies_ (we only have it complete in Latin) was always rare, but there were at least two copies of it in England, one in the Carmelites' Library at Oxford, the other given by Archbishop Mepham to Christchurch, Canterbury. The latter, I believe, we still have in the Arundel collection in the British Museum. The MS. of Tertullian which Gelenius got from England is gone, and our knowledge of the treatise _On Baptism_ which it contained depends wholly on his printed text. I cannot doubt that among the books imported in the seventh century from Italy by Benedict Biscop and Theodore and Hadrian, and in the great library of York, which Alcuin panegyrizes in his poem on the saints of York, there were texts now lost. But the Danes made a clean sweep of all those treasures, as they did of the whole vernacular literature of Northumbria, undoubtedly a rich one. The scattered indications I have collected in the preceding paragraphs point to the fact that some strange and rare books did lurk here and there in English libraries. It is almost a relief that catalogues do not tell us of supremely desirable things, such as Papias on the Oracles of the Lord, or the complete Histories or Annals of Tacitus.