About the 12th of December, Melanchthon travelled to Cassel, to negotiate a Form of Concord with Bucer. Bucer had a short time before met with several ministers from upper Germany, in Constance, who fully coincided in his views of the Lord's Supper. The Landgrave took a deep interest in the matter, and treated the Wittenberg envoy in the most friendly manner. Here Bucer, with the upper Germans, expressed his opinion to the following effect:--"That we receive the body of Christ essentially and truly when we receive the Sacrament, and that bread and wine are signs, with which, when they are dispensed and received, the body of Christ is given and received at the same time." He further said, "that the body and the bread are thus united, not by a mingling of their essence, but as a Sacrament, and that which is given together with the Sacrament." With a doctrine thus approximating, together with the declaration, that the opposite side would abide by the Augsburg Confession and its Apology, Melanchthon returned from Cassel January 9th, 1535. Luther was highly pleased with it, so that he remarked: "As for my own person, I do not know how I could reject such a Form of Concord." Yet he advised that this Concord should not be finally arranged at once, but that it would be best to wait a while longer, because these differences were so great and wide-spread. We must notice here that Melanchthon returned in favor of Bucer's views. He shows this very distinctly in a letter to Camerarius; and in a letter to Brenz, who was opposed to a Concord, he remarked, that they were not treating with persons who denied the Trinity and other articles. With such he would have nothing to do, but would look upon them as persons who ought to be condemned. He confesses the true presence to him, yet with a leaning towards Bucer, and remarks that uniformity could be brought about. Letters arrived from every side, declaring how gladly all would unite with the Wittenbergers in the Lord's Supper. So also did they write from Augsburg, to whom Luther wrote: "If this Form of Concord is established, I will sing with tears of joy: Lord, now lettest thou thy servant depart in peace. For I will leave peace in the Church, that is, the glory of God, the punishment of the devil, and vengeance upon all enemies and adversaries." Such encouraging letters also came from Strasburg, Ulm, and Esslingen, which filled Luther with great joy. He remarked to the Strasburgers, that it would also be necessary to interest the princes and cities in this matter. As to the time, it would scarcely be possible to hold the conference before next Easter. The Elector would be requested to appoint the place of meeting. He also expressed his cordial wishes to the preacher, Shelling, in Strasburg, towards the close of December: "I have received your letter with pleasure, and assure you that I am just as anxious for the Concord as I observe you to be. Let Him bear witness whom no one can deceive.