museum. As to visits, they are not to be thought of until the spring. I could not bear the idea of interruption before the first number of my "Fishes" is finished. The artist in question was Mr. Dinkel. His relations with the family became of a truly friendly character. The connection between him and Agassiz, most honorable to both parties, lasted for sixteen years, and was then only interrupted by the departure of Agassiz for America. During this whole period Mr. Dinkel was occupied as his draughtsman, living sometimes in Paris, sometimes in England, sometimes in Switzerland, wherever, in short, there were specimens to be drawn. In a private letter, written long afterward, he says, in speaking of the break in their intercourse caused by Agassiz's removal to America: "For a long time I felt unhappy at that separation. . .He was a kind, noble-hearted friend; he was very benevolent, and if he had possessed millions of money he would have spent them for his researches in science, and have done good to his fellow-creatures as much as possible." Some passages from Braun's letters complete the chapter of these years in Munich, so rich in purpose and in experience, the prelude, as it were, to the intellectual life of the two friends who had entered upon them together. These extracts show how seriously, not without a certain sadness, they near the end. BRAUN TO HIS FATHER. MUNICH, November 7, 1830. Were I to leave Munich now, I must separate myself from Agassiz and Schimper, which would be neither agreeable nor advantageous for me, nor would it be friendly toward them. We will not shorten the time, already too scantly measured, which we may still spend so quietly, so wholly by ourselves, but rather, as long as it lasts, make the best use of it in a mutual exchange of what we have learned, trying to encourage each other in the right path, and drawing more closely together for our whole life to come. Agassiz is to stay till the end of the month; during this time he will give us lectures in anatomy, and I shall learn a good deal of zoology. Beside all this one thing is certain; namely, that we can review our medical work much more quietly and uninterruptedly here than in Carlsruhe. Add to this, the advantage we enjoy here of visiting the hospitals. . . The time passes delightfully with us of late, for Agassiz has received several baskets of books from Cotta, among others, Schiller's and Goethe's complete works, the Conversations-Lexicon, medical works, and works on natural history. How many books a man may receive in return for writing only one! They are, of course, deducted from his share of the profits. Yesterday we did nothing but read Goethe the whole day. A brief account of Agassiz's university life, dictated by himself,