My minors--I hardly recall now what they were. One major and two or three minors were required, I believe, and one of the minors had to be the History of Philosophy. One semester in this subject was usually considered sufficient. So I must have listened to lectures on this subject, and I recall other courses in German Literature. But I am afraid that my professors at the time would be hard put to it, in looking over to-day the selected courses in my _Anmelde-Buch_, to make out what I was driving at. But in spite of all this confusion and floundering about, I was busy, after all, on my own private ends. I may not have got much from the lectures, but I came in contact with such men as Virchow, the pathologist; Kiepert, the geographer; Curtius, the Greek historian; Pfleiderer, the theologian; Helmholtz, the chemist, and I got glimpses of Mommsen. He was not reading in the university during my stay in Berlin, but he lived not far from my mother's home, and I used to see him in the street cars. He was a very much shriveled-up looking individual, and when sitting down looked very diminutive. He wore immense glasses, which gave his eyes an owlish appearance; I saw him to the best advantage one afternoon when we were riding alone in a street car through the Thiergarten. He had a corner in the front, and I had taken one in the rear. I hardly noticed him at first, and had opened a book to read, when suddenly the old gentleman began to mumble to himself and gesture. "Ya, ya, so ist es," I could hear him say. "So muss es sein," and he flourished his right hand about as if he were speaking to a collection of Roman senators. What it was that was "so," and why it had to be "so," I could not find out. Perhaps he was arguing a deep polemical point with an imaginary adversary, and perhaps he was merely having a little tiff with the police. He was the proud father of twelve children, more or less, and no Berlin landlord, so the story runs, would rent him a flat. He consequently lived in Charlottenburg, where, I have heard, that he told the police what he thought of them and their regulations.