‘But where there is nothing common, it is almost depreciating a collection to enumerate a few articles as rare. It is a marked feature of this Library, that Mr. GRENVILLE did not collect mere bibliographical rarities. He never aimed at having a complete set of the editions from the press of CAXTON or ALDUS; but _Chaucer_ and _Gower_ by CAXTON were readily purchased, as well as other works which were desirable on other accounts, besides that of having issued from the press of that printer; and, when possible, select copies were procured. Some of the rarest, and these the finest, Aldine editions were purchased by him, for the same reasons. The _Horæ_ in Greek, printed by ALDUS in 16º, in 1497, is a volume which, from its language, size, and rarity, is of the greatest importance for the literary and religious history of the time when it was printed. It is therefore in Mr. GRENVILLE’S Library. The _Virgil_ of 1501 is not only an elegant book, but it is the first book printed with that peculiar _Italic_, known as Aldine, and the first volume which ALDUS printed, “_forma enchiridii_,” as he called it, being expressly adapted to give poor scholars the means of purchasing for a small sum the works of the classical writers. This also is, therefore, among Mr. GRENVILLE’S books; and of one of the two editions of _Virgil_, both dated the same year, 1514, he purchased a large paper copy, because it was the more correct of the two. ‘It was the merit of the work, the elegance of the volume, the “genuine” condition of the copy, &c., which together determined Mr. GRENVILLE to purchase books printed on vellum, of which he collected nearly a hundred. He paid a very large sum for a copy of the Furioso of 1532, not because it was “on ugly vellum,” as he very properly designated it, but because, knowing the importance of such an edition of such a work, and never having succeeded in procuring it on paper, he would rather have it on expensive terms and “ugly vellum,” than not at all.