His plan of publishing a separate volume of annals in London was not adopted, but he had the good fortune to secure S. Birch as an assistant in the management, and the latter was now entrusted with the affairs of the English section, in place of Millingen. The conservative subject of the absolute monarch, Frederick William III., also learned in Great Britain to know the advantages of civil freedom and of parliamentary life. He had much to settle with Bunsen himself regarding the work of which they were to be the joint authors, and he wrote from London to his faithful patron: “I have never labored with such love and devotion as now at our, that is, at your work. For it is you who have conceived the idea, and at the same time pointed out and assured its place in European science; you have spun the thread of its life and given the framework for the whole. Finally, you have provided the means for carrying it on, and everything that I accomplish and record I only do according to your ideas and for you, and as I work I naturally think of no other reader than yourself. I see that I must visit you to get you to give me a few quiet days in which we can come to a definitive understanding and agreement about the impending publication.” Bunsen labored at the part of the work which fell to his share, as Lepsius at his, and the day seemed not far distant when the two would compare, combine, and publish their manuscripts. But there had already arisen many differences of opinion between the collaborators, and these seemed particularly important in the department of chronology, where Lepsius was to execute the lion’s share of the labor. While Bunsen, as was afterwards proved, reposed far too much confidence in the list of Eratosthenes, Lepsius had so high an estimate of Manetho as to place the greatest confidence in those lists of the series of kings which he considered the genuine work of that priest. He also made freer use of the historical inscriptions and the data of ancient Egyptian origin, (with which he had a much more intimate acquaintance than Bunsen), and attributed to them far greater importance, than seemed justifiable to the latter. The materials for his “Book of Kings” and his Chronology developed, and took the form of independent works, and although both were intended as a part of the book to be published in common by him and Bunsen, they yet contained, as we perceive from the letters of that period, a number of details which were in direct opposition to Bunsen’s views. At the end of the year 1839 it was already difficult to comprehend what path the fellow-workmen could pursue in order to arrive at a practicable agreement.