We may, perhaps, trace the revival of engraved illustrations to the influence of Hieronymus or Jerome Cock, an Antwerp engraver, who in May, 1551, issued a series of plates from the designs of F. Faber, entitled _Praecipua aliquot Romanae antiquitatis ruinarum monimenta_, without any letterpress save the name of the subject engraved on each plate. Cock followed this up in 1556 with twelve engravings from the designs of Martin van Veen illustrating the victories of Charles V, which are also celebrated in verses in French and Spanish. He issued also various other series of Biblical and antiquarian plates, which do not concern us, and in 1559 a set of thirty-two illustrating the funeral of Charles V. For this, aided by a subsidy, Christopher Plantin acted as publisher, and we thus get a connection established between engraving and printing. This did not, however, bear fruit at all quickly. Plantin's four emblem-books of 1562, 1564, 1565, and 1566 were illustrated not with copper engravings, but with woodcuts; so was his Bible of 1566, so were his earlier Horae. That of 1565 has unattractive woodcut borders to every page and small woodcut illustrations of no merit. In 1570 he began the use of engravings for his Horae, but in a copy in the British Museum, printed on vellum almost as thick as cardboard, he was reduced to pulling the pictures on paper and pasting them in their places. In 1571 he illustrated the _Humanae salutis monumenta_ of his friend Arias Montanus with some rather pretty copperplates, each surrounded with an effective engraved border of flowers and birds, but for a new Horae (on paper) in 1573, for which he had commissioned a set of full-page plates of some merit (printed with the text on their back), he had not troubled to procure borders. Two years later he produced a really curious edition in which the engraved illustrations (some of them from the _Humanae salutis monumenta_) are surrounded with woodcut borders, and in many cases have red underlines, so that each page must have undergone three printings.[66] Although woodcuts were considered sufficiently good for Plantin's Bible of 1566, for his great Polyglot it was indispensable to have titlepages engraved on copper, and to the first volume he prefixed no fewer than three, engraved by P. van der Heyden after designs by P. van der Borcht. All of them are emblematical, the first symbolizing the unification of the world by the Christian faith and the four languages in which the Old Testament was printed in the Polyglott, the second the zeal of Philip II for the Catholic faith, the third the authority of the Pentateuch. While some volumes had no frontispiece others contained a few illustrations, and the total number of plates was twenty-eight. Some of these were used again in Plantin's Bible of 1583, and Raphelengius, into whose possession the whole set passed in 1590, used sixteen of them three years later to illustrate the _Antiquitates Judaicae_ of Arias Montanus.