In February, 1894, Jena witnessed a remarkable celebration—remarkable not only to those who had lived with him in the sixties. A marble bust of Haeckel was unveiled by Professor Hertwig, with noble speech, in the Zoological Institute. A festive dinner, such as Germans alone can conduct, was held in the famous Luther-Hostel. More than a thousand letters and telegrams poured in from all parts of the world, and scores of journals awoke the interest of Germany. I have before me the privately-published report on the celebration, autographed to “Agnes Haeckel.” Two lists in it catch the eye. One is a list of Haeckel’s publications. Apart from his long and numerous articles in scientific journals he has written forty-two works (13,000 pages, frequently quarto) in thirty-three years. All but two are pure contributions to science: some of them are classical monographs of original research; most are beautifully illustrated by himself. The second list gives the names of those who have contributed towards the marble bust by Professor Kopf, of Rome. It is worthy of science. It includes five hundred university professors and heads of academic institutions in all parts of the world, from Brazil and the States to Algiers and Egypt and India. In their name Professor Hertwig greeted Haeckel as one “who has written his name in letters of light in the history of science.” From Italy the Minister of Public Instruction sent the following telegram: “Italy, that you love so much, takes cordial part in all the honours that the civilised nations of the earth are heaping on you in commemoration of your sixtieth birthday. In the name of the Italian Universities, which love you so much and so much admire your undying work, I send you a heartfelt greeting and wishes for a long and happy and active career.” Dr. Paul von Ritter gave 75,000 marks [shillings] for the erection of a monument to Haeckel at Jena when the hour comes. He had previously given 300,000 marks to be spent in the furtherance of Haeckel’s scientific views. The story so vividly unfolded by Professor Bölsche has explained how the estrangement arose between Haeckel and so many of his scientific colleagues in Germany. It is not a little gratifying to find the names of some of his critics amongst the subscribers to his festival. The personality, the aim, the self-sacrifice of the man, no less than his distinguished special contributions to science, had won a superb recognition.