actually took place in 1520, after he had at first resisted, in order to allow no interruption to his highest enjoyment, his learned studies. At the university Luther was also busily engaged with the necessary preparations for many lectures that were not theological. He steadily persisted in his efforts to secure the appointment of a competent professor of Hebrew. He also worked hard to get a qualified printer, the son of the printer Letter at Leipzig, to settle at the university, and set up there for the first time a press for three languages, German, Latin, and Greek. For everything of this kind that was submitted to the Elector, who took a constant interest in the prosperity of the university, his friend Spalatin was his confidential intermediary. As early as 1518 Luther had expressed to him the wish and hope that Wittenberg, in honour of Frederick the Wise, should, by a new arrangement of study, become the occasion and pattern for a general reform of the universities. In addition to his constant and arduous labours of various kinds, he took part also in the social intercourse of his colleagues, although he complained of the time he lost by invitations and entertainments. In the town church at Wittenberg he continued his active duties not only on Sundays but during the week. His custom was to expound consecutively in a course of sermons the Old and New Testaments, and he explained particularly to children and those under age, the Lord's Prayer and the Ten Commandments. This work alone, he once complained to Spalatin, required properly a man for it and nothing else. These services he gave to the town congregation gratuitously. The magistracy were content to recognise them by trifling presents now and then; for instance, by a gift of money on his return from Leipzig, where he had had to live on his own very scanty means. In simple, powerful, and thoroughly popular language, Luther sought to bring home to the people who filled his church, the supreme truth he had newly gained. Here in particular he employed his own peculiar German, as he employed it also in his writings. Both he and Melancthon formed a close personal intimacy with several worthy townsmen of Wittenberg. The most prominent man among them, the painter Lucas Cranach, from Bamberg, owner of a house and estate at Wittenberg, the proprietor of an apothecary's and also of a stationer's business, besides being a member of the magistracy, and finally burgomaster, belonged to the circle of Luther's nearest friends. Luther took a genuine pleasure in Cranach's art, and the latter, in his turn, soon employed it in the service of the Reformation. [Illustration: Fig. l8.--LUCAS CRANACH. (From a Portrait by himself.)]