While all this activity was displayed at Venice other cities were not idle. At Milan upwards of eight hundred incunabula were produced, mostly by its earliest printer, Antonius Zarotus, and two Germans, Leonhard Pachel and Ulrich Scinzenzeler. Ferrara seems to have been able to support only one press at a time, and at Florence it was some years before printing flourished, but in the last quarter of the century many interesting books were printed there, both learned and vernacular, as to the illustrations in which much will have to be said later on. Some of the early Treviso books from the press of Gerard Lisa are distinctly pretty. Bologna produced about three hundred incunabula. Naples probably not so many, but of much better quality. Altogether well over ten thousand Italian incunabula must still be extant, and these were produced at no fewer than seventy different places, though many of these were of no typographical importance, and only find their way into histories of printing from having sheltered a wandering printer for a few weeks as he was on his way from one large town to another. In France also the earliest books were addressed to students of the classics, though they were produced on a much more limited scale. There the first printers, three Germans, had been invited to set up their presses at Paris in the Sorbonne by two of its professors, Guillaume Fichet and Jean Heynlin, of Stein, better known in his own day as Johannes de Lapide. Between the summer of 1470 and the autumn of 1472 eighteen works were printed at the Sorbonne, mostly of the kind which would be of use to its students. Among them was Sallust, three works of Cicero, Virgil's Bucolics and Georgics, the Satires of Juvenal and Persius, Terence, some text books, the _Speculum Humanae Vitae_ of Bishop Roderic of Zamora, and the Orations of Fichet's patron, Cardinal Bessarion. In August, 1472, the Cardinal arrived in France on a fruitless mission to rouse the king to a crusade against the Turks. He was rebuffed and ordered to leave France. Fichet accompanied him, and never returned to Paris. As early as the previous March Heynlin seems to have been called away, and now the imported German printers, Michael Freiburger, Ulrich Gering, and Martin Crantz, were left wholly to their own devices. Thus abandoned they printed four books of a less special character, for which they sought princely instead of scholarly patronage, and then in April, 1473, moved from the Sorbonne and set up for themselves at the sign of the Soleil d'Or in the Rue S. Jacques. Here they printed still in Latin, but a much more popular class of books, and soon had to contend with two rival firms, that of Pieter de Keysere and Johann Stol, and the printers at the sign of the "Soufflet Vert" or Green Bellows. The finest of the subsequent printers was Jean Dupre, who used excellent capitals and issued many illustrated books, but three prolific printers, Antoine Caillaut, Gui Marchand, and Pierre