The process of disentangling the twisted skein of tradition is necessarily a very delicate and complicated one, and involves certain operations for which special scholarship is indispensable. Historical criticism is a comparatively modern science, and in its application to this, as to other histories, it has made many false and uncertain steps. But in this, as in other sciences, when the truth has been reached it can generally be presented in a comparatively simple form, and the main positions can be justified even to the general reader by methods much less complicated, and much more lucid, than those originally followed by the investigators themselves. The modern view as to the age of the Pentateuchal law, which is the key to the right understanding of the History of Israel, has been reached by a mass of investigations and discussions of which no satisfactory general account has ever been laid before the English reader. Indeed, even on the Continent, where the subject has been much more studied than among us, Professor Wellhausen's book was the first complete and sustained argument which took up the question in all its historical bearings. More recently Professor Kuenen of Leyden, whose discussions of the more complicated questions of Pentateuch analysis are perhaps the finest things that modern criticism can show, has brought out the second edition of the first volume of his Onderzoek, and when this appears in English, as it is soon to do, our Hebrew students will have in their hands an admirable manual of what I may call the anatomy of the Pentateuch, in which they can follow from chapter to chapter the process by which the Pentateuch grew to its present form. But for the mass of Bible-readers such detailed analysis will always be too difficult. What every one can understand and ought to try to master, is the broad historical aspect of the matter. And this the present volume sets forth in a way that must be full of interest to every one who has tasted the intense pleasure of following institutions and ideas in their growth, and who has faith enough to see the hand of God as clearly in a long providential development as in a sudden miracle.