Four days after his arrival, the 22 years old professor delivered the Introductory to his Lectures. The lecture-room was entirely filled. His exterior did not promise much. A small, insignificant form, with a timid gait, entered the desk, but the lofty brow, and his large blue eyes, indicated the mighty mind which tabernacled in this unseemly and frail vessel. But when he commenced his Latin address, which treated of the improvement of studies, unfolding the deepest thoughts in the most chaste language, and resting so entirely upon the word of God, all were filled with joy. Luther, who was also present, was full of enthusiasm; for he felt at once how much the University and the good cause of the Reformation had gained in the possession of a man so learned, and with so deep an insight into truth. He therefore, full of joy, wrote to his beloved friend Spalatin as early as August 31: "Philip delivered a very learned and chaste address on the fourth day after his arrival, and that too with such applause and admiration on every side, that you need not trouble yourself further in commending him to us. We must look away from his exterior appearance; we rejoice in his gifts, at the same time that we are amazed at them; and we heartily thank our gracious prince, as well as your own assistance. It is now especially important that you recommend him most earnestly to our prince. I by no means desire a different teacher of Greek, as long as he remains with us. There is but one thing I fear, namely, that his delicate constitution will not be able to endure the manner of life in this region. I also learn that he has been called with too small a salary, so that the Leipzigers already boast and hope that they shall soon be able to draw him away from us; for they already courted him before he came to us. I, and many others with me, suspect that Dr. Pfeffinger has, according to his usual custom, been endeavoring to save the Elector's purse too much in this matter. Therefore, my dear Spalatin, to speak freely, that is, with my best friend: I pray you, look to it, that you do not despise his person and age. This man is deserving of all honor; for I do not wish us and the University to do so uncourteous a thing, and give envious persons occasion to speak evil of us." Two days after this, he again commends him to Spalatin most earnestly: "I would most heartily commend to you Philip, the great Grecian, the thorough scholar, and most amiable man. His lecture-room is crowded with hearers. It is owing to him, principally, that all theologians, the first, middle, and lowest class, are studying Greek." And thus Luther also expressed himself towards other friends. But the more they learned to know each other, so much the more also did their mutual esteem and affection increase. When Melanchthon, at a certain time, wrote to his paternal friend Reuchlin, and requested Luther to add a letter also, he complied with great