Fortunately only a few colleagues were so illogical, and an excellent idea of how much Jenner's discovery was appreciated by his contemporaries may be obtained from the number of honors, diplomas, addresses and communications from public bodies and distinguished individuals which he received. A chronological list of these may be found at the end of Dr. Baron's Life of Jenner. Among them may be noted the diploma of LL.D. from the Senate of Harvard University, Cambridge, Mass., under the presidency of Dr. Willard; also the Diploma of Doctor in Medicine, honoris {103} causa, which Jenner especially appreciated, as he says in one of his letters, because he understood that the University conferred this degree in this way only once or twice in a century. There is a diploma as Fellow of the American Society of Arts and Sciences in Massachusetts, as well as a Diploma as a member of the American Philosophical Society at Philadelphia. The diploma from Boston bears the signature of John Adams as president, that from Philadelphia the signature of Thomas Jefferson. Most of the prominent medical and scientific societies of Europe had elected him a member or had sent him some special token of recognition. One of these documents, expressive of the gratitude of the senders for the great benefit his work had conferred upon the human race, which Jenner valued the highest, was an address from the Five Indian Nations which, with a Wampum Belt, was delivered to him on November 8, 1807. In reply to this Dr. Jenner wrote to the American agent through whom the insignia had been forwarded: "Sir: "Your kindness in delivering to the Five Nations of Indians my Treatise on vaccination, and in transmitting to me their reply, demands my warmest thanks. "I beg you to make known to the Five Nations the sincere gratification which I feel at finding that the practice of vaccination has been so universally received among their tribes, and proved so beneficial to them; at the same time, be pleased to assure them of the great thankfulness with which I received the belt and string of Wampum, with which they condescended to honour me, and of the high estimation in which I shall for ever hold it. May the active benevolence which their chiefs have displayed in preserving the lives of {104} their people be crowned with the success it deserves; and may that destructive pestilence, the smallpox, be no more known among them. "You also, Sir, are entitled to the most grateful acknowledgments, not only from me, but from every friend of humanity, for the philanthropic manner in which you originally introduced the vaccine among these tribes of Indians. "I have the honor to remain, &c, "E. Jenner." The general trend of American appreciation for Dr. Jenner's work, at least among the intelligent classes, may be gathered from the following letter sent to Dr. Jenner by Thomas Jefferson while he was president, May 14, 1806: