“Historia Frumentorum,” with eighty-four plates. 1581. Works of S. Augustine, in ten volumes. Works of S. Jerome, in five volumes. Ortellius, the Geographer, Maps and “Theatrum Orbis.” Mercator, the Maps of. 1583. “Stirpium Historia Pomptades Sex.” A Description of the Netherlands, by Guicciardini, printed, with many illustrations, in German, Latin, French, Flemish, and Italian. The elaborate plans of the cities were paid for by the municipalities interested. The author received as his compensation one hundred and fifty florins and a number of copies of the book. “Humanæ Salutus monumenta,” by Arias Montanus, with seventy-two plates. 1575-85. A long series of Musical Works, for the text of which special fonts had to be made. In 1567, Plantin coöperated with Paul Manutius (the son of Aldus), who was at that time established in Rome, in the production of a series of Breviaries, eleven in all. Manutius had secured for the work a papal privilege covering all the Catholic States, and as consideration for the assignment of this privilege for the Netherlands, Plantin was to pay one tenth of all the copies printed by him. A royal privilege, confirming the papal sanction, was secured from Philip II., who also advanced 2000 florins to facilitate the publication. Later, Plantin was relieved from the payment to Manutius of the tenth, the Pope having authorised, for the dominions of Philip, a somewhat different form of Breviary. This undertaking proved very remunerative. In 1557, Plantin’s consignment to the Frankfort Fair comprised no less than 1200 volumes, together with a large assortment of prints from copper plates. He was at this time, unquestionably, one of the two leading publishers of the world, the other being Henry Estienne of Geneva. In the publication of elaborately illustrated works, of illustrations for separate sale, and of finely engraved maps, his work represents an enormous advance over anything that had before been attempted, and it is difficult to-day to understand how the resources at his command and the markets within his reach could have been sufficient to warrant the production of works of such magnitude and costliness.