the roller, and appearing to the right; but not unlike the proofs in the mechanical part of the impression, and in regard to the uncertainty of their artists. For this, and other information on the subject, I am indebted to the kindness of the Ab. Boni, who having enjoyed the familiar acquaintance of Count Giacomo, is now engaged in preparing a full account of his fine collection. The last state of engraving on copper I consider to be that in which the press and the printing ink being now discovered, the art began to approach nearer perfection; and it was then it became first separated from the goldsmith's art, like the full grown offspring, received pupils, and opened its studio apart. It is difficult to fix the precise epoch when it attained this degree of perfection in Italy. The same artificers who had employed the roller, were some of them living, to avail themselves of the press, such as Nicoletto da Modena, Gio. Antonio da Brescia, and Mantegna himself, of whose prints there exist, as it were, two editions; the one with the roller, exhibiting faint tints, the other in good ink, and from the press. Then the engravers first becoming jealous lest others should appropriate their reputation, affixed their own names more frequently to their works; beginning with their initials, and finally attaching the full name. The Germans held out the earliest examples, which our countrymen imitated; with one who surpassed all his predecessors, the celebrated Marc Antonio Raimondi, or del Francia. He was a native of Bologna, and was instructed in the art of working in niello by Francesco Francia, in which he acquired singular skill. Proceeding next to engravings upon metal, he began with engraving some of the productions of his master. At first he imitated Mantegna, then Albert Durer, and subsequently perfected himself in design under Raffaello d'Urbino. This last afforded him further assistance; he even permitted his own grinder of colours, Baviera, to manage the press, in order that Marc Antonio might devote himself wholly to engraving Raffaello's designs, to which we owe the number we meet with in different collections. He pursued the same plan with the works of antiquity, as well as those of a few moderns, of Bonarruoti, of Giulio Romano, and of Bandinelli, besides several others, of which he was both the designer and engraver. Sometimes he omitted every kind of mark, and every letter; sometimes he adopted the little tablet of Mantegna, either with letters or without. In some engravings of the Passion he counterfeited both the hand and the mark of Albert Durer: and not unfrequently he gave the initial letters of his own and of Raffaello's name, and that of Michel Angiolo Fiorentino upon those he engraved after Bonarruoti. He was assisted by his two pupils, Agostin Veneziano and Marco Ravignano, who succeeded him in the series of engravings from Raffaello; which led Vasari to observe, in his Life of Marc Antonio,