This picture, bearing the inscription "Johannes Van Eyck (fuit?) hic, 1434," is probably the portrait, certainly the work, of one of those brothers to whose ingenuity the first invention of the art of oil-painting has been long ascribed. The volume before us is occupied chiefly in determining the real extent of the improvements they introduced, in examining the processes they employed, and in tracing the modifications of those processes adopted by later Flemings, especially Rubens, Rembrandt, and Vandyck. Incidental notices of the Italian system occur, so far as, in its earlier stages, it corresponded with that of the north; but the consideration of its separate character is reserved for a following volume, and though we shall expect with interest this concluding portion of the treatise, we believe that, in the present condition of the English school, the choice of the methods of Van Eyck, Bellini, or Rubens, is as much as we could modestly ask or prudently desire. 105. It would have been strange indeed if a technical perfection like that of the picture above described (equally characteristic of all the works of those brothers), had been at once reached by the first inventors of the art. So far was this from being the case, and so distinct is the evidence of the practice of oil-painting in antecedent periods, that of late years the discoveries of the Van Eycks have not unfrequently been treated as entirely fabulous; and Raspe, in particular, rests their claims to gratitude on the contingent introduction of amber-varnish and poppy-oil:--"Such _perhaps_," he says, "might have been the misrepresented discovery of the Van Eycks." That tradition, however, for which the great painters of Italy, and their sufficiently vain historian, had so much respect as never to put forward any claim in opposition to it, is not to be clouded by incautious suspicion. Mr. Eastlake has approached it with more reverence, stripped it of its exaggeration, and shown the foundations for it in the fact that the Van Eycks, though they did not create the art, yet were the first to enable it for its function; that having found it in servile office and with dormant power--laid like the dead Adonis on his lettuce-bed--they gave it vitality and dominion. And fortunate it is for those who look for another such reanimation, that the method of the Van Eycks was not altogether their own discovery. Had it been so, that method might still have remained a subject of conjecture; but after being put in possession of the principles commonly acknowledged before their time, it is comparatively easy to trace the direction of their inquiry and the nature of their improvements.