and early versions, then known to contain the Apocalypse, with such confirmation as they received from a large number of the Cursive MSS. Although his object was to approximate as nearly as possible to the most ancient text, his _apparatus criticus_ had not then reached the proportions it has subsequently assumed, and he did not even attempt to marshal the evidence of patristic quotations, or to give the arguments _pro_ and _contra_ any reading that he deliberately adopted. The _Codex Sinaiticus_ had not then been rescued from the Convent of St. Catherine by the enterprising Dr. Tischendorf, and the system of careful notation which is adopted in the _magnum opus_ now before us, had not been elaborated. Since 1844, moreover, the Rev. Bradley Alford has published a collation of the celebrated Cursive MS. 38, Dr. Delitzch has discovered the MS. used by Erasmus, and a careful collation is promised of the Codex Basiliensis, which Dr. Tregelles proposes to call Q, instead of adopting the old and confusing symbol B, which has led some to identify it with _the_ Codex Vaticanus. The introduction to the interesting volume on the text of the Book of Revelation was expanded in 1854 into a goodly octavo entitled 'An Account of the printed text of the Greek New Testament, with remarks on its revision upon critical principles, together with a collation of the critical texts of Griesbach, Scholz, Lachmann, and Tischendorf with that in common use.' We know no work on biblical criticism more charged with well-digested information, and none which reveals a more extensive literary enterprise, than that which is here recorded. Dr. Tregelles tells us in the preface to his Greek Testament, that this work contains a detailed exposition of the principles he holds and the studies in which he has been engaged, and as his editors earnestly request that it be referred to in explanation of the principle adopted by Dr. Tregelles, it is almost incumbent upon us to remind our readers of its contents and spirit. In the appendix to section 13, occurs a brief and modest sketch of the extensive and continuous labours of this great student of the New Testament text. It appears that he commenced his research simply for his own satisfaction. The text of Dr. Scholz, based so largely on the consensus of later MSS. but revealing the small group of Alexandrian authorities and most ancient witnesses in opposition to the text adopted by him, first called Dr. Tregelles to a consideration of the fact that these most ancient but rejected testimonies were curiously confirmed by the older versions. He was thus led to conceive of the creation of a text entirely based on the authority of the most ancient copies. He did not even know that Lachmann in 1838 had already made his celebrated though imperfect attempt to produce the text of the first four centuries in entire or professed independence of the later authorities and of the received text. When the Codex Amiatinus of Jerome's Latin Version was