that most imperfect collection being the only source from which Mill and even Wetstein had any acquaintance with the contents of this first-rate document. More indeed might have been gleaned from the Barberini readings gathered in or about 1625 (of which we shall speak in the next section), but their real value and character were not known in the lifetime of Wetstein. In 1698 Lorenzo Alexander Zacagni, Librarian of the Vatican, in his Preface to the Collectanea Monumentorum Veterum Eccles., describes Cod. B, and especially its peculiar division into sections, in a passage cited by Mill (Proleg. § 1480). In 1669 indeed the first real collation of the manuscript with the Aldine edition (1518) had been attempted by Bartolocci, then Librarian of the Vatican; from some accident, however, it was never published, though a transcript under the feigned name of Giulio a Sta. Anastasia yet remains in the Imperial Library of Paris (MSS. Gr. Supplem. 53), where it was first discovered and used by Scholz in 1819, and subsequently by Tischendorf and Muralt, the latter of whom (apparently on but slender grounds) regards it as the best hitherto made; others have declared it to be very imperfect, and quite inferior to those of Bentley and Birch. The collation which bears Bentley’s name (Trin. Coll. B. xvii. 3, in Cephalaeus’ N. T. 1524) was procured about 1720 by his money and the labour of the Abbate Mico, for the purpose of his projected Greek Testament. When he had found out its defects, by means of an examination of the original by his nephew Thomas Bentley in 1726, our great critic engaged the Abbate Rulotta in 1729 for forty scudi (Bentley’s Correspondence, p. 706) to revise Mico’s sheets, and especially to note the changes made by the second hand. Rulotta’s papers came to light in 1855 among the Bentley manuscripts in the Library of Trinity College, Cambridge (B. xvii. 20), and have lately proved of signal value(142); Mico’s were published in 1799 at Oxford, by Henry Ford, Lord Almoner’s Reader in Arabic there (1783-1813), together with some Thebaic fragments of the New Testament, in a volume which (since it was chiefly drawn from Woide’s posthumous papers) he was pleased to call an Appendix to the Codex Alexandrinus. A fourth collation of the Vatican MS. was made about 1780 by Andrew Birch of Copenhagen, and is included in the notes to the first volume of his Greek Testament 1788, or published separately in three volumes which were issued successively 1798 (Acts, Cath. Epp., Paul.), 1800 (Apoc.), and 1801 (Evans). Birch’s collation does not extend to the Gospels of St. Luke and St. John, and on the whole is less full and exact than Mico’s. In 1810, however, when, with the other best treasures of the Vatican, Codex B was at Paris, the celebrated critic J. L. Hug sent forth his treatise “de Antiquitate Vaticani Codicis Commentatio,” and though even he did not perceive the need of a new and full collation when he