This volume is my contribution towards the better understanding of a subject which is destined, when it shall have grown into a Science, to vindicate for itself a mighty province, and to enjoy paramount attention. I allude to the Textual Criticism of the New Testament Scriptures. That this Study is still in its infancy, all may see. The very principles on which it is based are as yet only imperfectly understood. The reason is obvious. It is because the very foundations have not yet been laid, (except to a wholly inadequate extent,) on which the future superstructure is to rise. A careful collation of every extant Codex, (executed after the manner of the Rev. F. H. Scrivener’s labours in this department,) is the first indispensable preliminary to any real progress. Another, is a revised Text, not to say a more exact knowledge, of the oldest Versions. Scarcely of inferior importance would be critically correct editions of the Fathers of the Church; and these must by all means be furnished with far completer Indices of Texts than have ever yet been attempted.—There is not a single Father to be named whose Works have been hitherto furnished with even a tolerably complete Index of the places in which he either quotes, or else clearly refers to, the Text of the New Testament: while scarcely a tithe of the known MSS. of the Gospels have as yet been satisfactorily collated. Strange to relate, we are to this hour without so much as a satisfactory Catalogue of the Copies which are known to be extant. But when all this has been done,—(and the Science deserves, and requires, a little more public encouragement than has hitherto been bestowed on the arduous and—let me not be ashamed to add the word—_unremunerative_ labour of Textual Criticism,)—it will be discovered that the popular and the prevailing Theory is a mistaken one. The plausible hypothesis on which recent recensions of the Text have been for the most part conducted, will be seen to be no longer tenable. The latest decisions will in consequence be generally reversed.