We are just returned from an exhibition at the Louvre; and a very splendid exhibition it is—though, alas! but a poor consolation for the hidden treasures of the picture-gallery. Several magnificent rooms are now open for the display of works in tapestry and Sèvres porcelain; and however much we might have preferred seeing something else there, it is impossible to deny that these rooms contain many objects as wonderful perhaps in their way as any that the higher branches of art ever produced.

The copy of Titian's portrait of his mistress, on porcelain, and still more perhaps that of Raphaël's "Virgin and St. John watching the sleep of the infant Jesus," (the Parce somnum rumpere,) are, I think, the most remarkable; both being of the same size as the originals, and performed with a perfection of colouring that is almost inconceivable.

That the fragile clay of which porcelain is fabricated should so lend itself to the skill of the workman,—or rather, that the workman's skill should so triumph over the million chances which exist against bringing unbroken out of the fire a smooth and level plaque of such extent,—is indeed most wonderful. Still more so is the skill which has enabled the artist to prophesy, as he painted with his greys and his greens, that the tints which flowed from his pencil of one colour, should assume, from the nicely-regulated action of an element the most difficult to govern, hues and shades so exquisitely imitative of his great original.

But having acknowledged this, I have nothing more to say in praise of a tour de force which, in my opinion, can only be attempted by the sacrifice of common sense. The chefs-d'œuvre of a Titian or a Raphaël are treasures of which we may lawfully covet an imitation; but why should it be attempted in a manner the most difficult, the most laborious, the most likely to fail, and the most liable to destruction when completed?—not to mention that, after all, there is in the most perfect copy on porcelain a something—I am mistress of no words to define it—which does not satisfy the mind.

As far as regards my own feelings indeed, I could go farther, and say that the effect produced is to a certain degree positively disagreeable,—not quite unlike that occasioned by examining needlework performed without fingers, or watch-papers exquisitely cut out by feet instead of hands. The admiration demanded is less for the thing itself, than for the very defective means employed to produce it. Were there indeed none other, the inventor would deserve a statue, and the artist, like Trisotin, should take the air "en carrosse doré:" but as it is, I would rather see a good copy on canvass than on china.

Far different, however, is the effect produced by this beautiful and ingenious branch of art when displayed in the embellishment of cups and plates, vases and tea-trays. I never saw anything more gracefully appropriate to the last high finish of domestic elegance than all the articles of this description exhibited this year at the Louvre. It is impossible to admire or to praise them too much; or to deny that, wonderfully as similar manufactories have improved in England within the last thirty years, we have still nothing equal to the finer specimens of the Sèvres porcelain.

These rooms were, like every other place in Paris where human beings know that they shall meet each other, extremely full of company; and I have certainly never seen such ecstasy of admiration produced by any objects exhibited to the public eye, as was elicited by some of the articles displayed on this occasion: they are indeed most beautiful; the form, the material, the workmanship, all perfect.

The Sèvres manufactory must, I think, have some individuals attached to it who have made the theory of colour an especial study. It is worth while to walk round the vast table, or rather platform, raised in the middle of the apartment, for the purpose of examining the different sets, with a view only to observe the effect produced on the eye by the arrangement of colours in each.

The finest specimens, after the wonderful copies from pictures which I have already mentioned, are small breakfast-sets—for a tête-à-tête, I believe,—enclosed in large cases lined either with white satin or white velvet. These cases are all open for inspection, but with a stout brass bar around, to protect them from the peril of too near an approach. The lid is so formed as exactly to receive the tray; while the articles to be placed upon it, when in use, are arranged each in its own delicate recess, with such an attention to composition and general effect as to show all and everything to the greatest possible advantage.

Some of these exquisite specimens are decorated with flowers, some with landscapes, and others with figures, or miniatures of heads, either superlative in beauty or distinguished by fame. These beautiful decorations, admirable as they all are in design and execution, struck me less than the perfect taste with which the reigning colour which pervades each set, either as background, lining, or border, is made to harmonize with the ornaments upon it.