larger letter in the margin throughout the New Testament marks the beginning of a paragraph. The number of scribes who worked on the codex have been disputed. According to biblical and classical scholar Frederic Kenyon's opinion there were five scribes, two scribes in the Old Testament (I and II) and three in the New (III, IV, and V). Subsequently, textual critics Theodore Skeat and Milne argued there were only two or possibly three scribes. 20th-21st century scholars agreed in that case (such as biblical scholar and textual critic Bruce Metzger, biblical scholar and textual critic Kurt Aland, textual critic Juan Hernández Jr., and textual critic Dirk Jongkind). Many corrections have been made to the manuscript, some of them by the original scribe, but the majority of them by later hands. The corrected form of the text agrees with codices D, N, X, Y, Γ, Θ, Π, Σ, Φ and the majority of minuscule manuscripts. Kenyon observed that Codex Alexandrinus had been "extensively corrected, though much more in some books than in others". In the Pentateuch, whole sentences were erased and a new text substituted. Kings was the least corrected of the books. In the Book of Revelation only 1 of its 84 singular readings was corrected, the rest remained uncorrected. This is in stark contrast with Codex Sinaiticus, in which 120 of the Apocalypse's 201 singular readings were corrected in the 7th century. Each leaf has Arabic numeration, set in the verso of the lower margin. The first surviving leaf of Matthew has number 26. The 25 leaves now lost must have been extant when that note was written. Contents The codex contains a nearly complete copy of the LXX, including the deuterocanonical books (those books not accepted as authoritative by some Christians, but accepted by certain Christian denominations) 3 and 4 Maccabees, Psalm 151 and the 14 Odes. The Epistle to Marcellinus (attributed to Saint Athanasius) and the Eusebian summary of the Psalms are inserted before the Book of Psalms (an overview of the Psalms written by the early Christian writer Eusebius of Caesarea). It also contains all of the books of the New Testament, however the pages containing Matthew 1:1–25:5 are not extant. The codex also contains 1 Clement (lacking 57:7–63; this is a letter attributed to the early Christian writer Clement of Rome) and the homily known as 2 Clement (up to 12:5a; another letter attributed to