starts as an interpretation of the Scriptures. Certain truths were arrived at by man either intuitively or rationally, and these were harmonised with the Bible by a process of lifting the veil from the text, and thus penetrating to the true meaning hidden beneath the letter. Allegorical and esoteric exegesis always had this aim: to find written what had been otherwise found. Honour was thus done to the Scriptures, though the latter were somewhat cavalierly treated in the process; Philo's doctrine (at the beginning of the Christian era) and the great canonical book of the mediaeval Cabbala, the Zohar (beginning of the fourteenth century), were alike in this, they were largely commentaries on the Pentateuch. Maimonides in the twelfth century followed the same method, and only differed from these in the nature of his deductions from Scripture. This prince of rationalists agreed with the mystics in adopting an esoteric exegesis. But he read Aristotle into the text, while the mystics read Plato into it. They were alike faithful to the Law, or rather to their own interpretations of its terms. But further than this,--a large portion of Jewish mysticism was the work of lawyers. Some of the foremost mystics were famous Talmudists, men who were appealed to for decisions on ritual and conduct. It is a phenomenon that constantly meets us in Jewish theology. There were antinomian mystics and legalistic opponents of mysticism, but many, like Nachmanides (1195-1270) and Joseph Caro (1488-1575), doubled the parts of Cabbalist and Talmudist. That Jewish mysticism comes to look like a revolt against the Talmud is due to the course of mediaeval scholasticism. While Aristotle was supreme, it was impossible for man to conceive as knowable anything unattainable by reason. But reason must always leave God as unknowable. Mysticism did not assert that God was knowable, but it substituted something else for this spiritual scepticism. Mysticism started with the conviction that God was unknowable by reason, but it held that God was nevertheless realisable in the human experience. Accepting and adopting various Neo-Platonic theories of emanation, elaborating thence an intricate angelology, the mystics threw a bridge over the gulf between God and man. Philo's Logos, the Personified Wisdom of the Palestinian Midrash, the demiurge of Gnosticism, the incarnate Christ, were all but various phases of this same attempt to cross an otherwise impassable chasm. Throughout its whole history, Jewish mysticism substituted mediate creation for immediate creation out of nothing, and the mediate beings were not created but were emanations. This view was much influenced by Solomon ibn Gabirol (1021-1070). God is to Gabirol an absolute Unity, in which form and substance are identical. Hence He cannot be attributively defined, and man can know Him only by means of beings which emanate from Him. Nor was this idea confined to Jewish philosophy of the Greece-Arabic school. The German Cabbala, too, which owed nothing directly to that school, held that God was not rationally knowable. The result must be, not merely to exalt visionary meditation over calm ratiocination, but to place reliance on inward experience instead of on external authority, which makes its appeal necessarily to the reason. Here we see elements of revolt. For, as Dr. L. Ginzberg well says, 'while study of the Law was to Talmudists the very acme of piety, the mystics accorded the first place to prayer, which was considered