The Epistle of Jeremy, which now appears in the Apocrypha as the last chapter of Baruch.  On the number and arrangement of the Books of the Old and New Testaments the student should consult an interesting Essay by Professor Sanday (Studia Biblica, vol. iii.), who traces the introduction of a fixed order to the time when papyrus rolls were superseded by codices, in which the sheets of skin were folded and bound together, as in printed books.  This change had commenced before the Diocletian persecution, a.d. 303, when among the sacred books taken from the Christians codices were much more numerous than rolls.  On the contents of the Jewish Canon, see Dictionary of the Bible, “Canon.”  B.F.W. “Josephus enumerates 20 books ‘which are justly believed to be divine.’”  One of the earliest attempts by a Christian to ascertain correctly the number and order of the Books of the O.T. was made by Melito, Bishop of Sardis, who travelled for this purpose to Palestine, in the latter part of the 2nd Century.  His list is as follows:—“Of Moses five (books); Genesis, Exodus, Numbers, Leviticus, Deuteronomy, Jesus son of Nave, Judges, Ruth, four Books of Kings, two of Chronicles, Psalms of David, Solomon’s Proverbs, which is also called Wisdom, Ecclesiastes, Song of Songs, Job, Prophets, Isaiah, Jeremiah, the Twelve in one Book, Daniel, Ezekiel, Esdras.”  (Eusebius, H.E. III. cap. 10, note I, in this series.)  Cyril’s List agrees with that of Athanasius (Festal Epistle, 373 a.d.), except that Job is placed by Ath. after Canticles instead of before Psalms.