I live near the University, and attend all the lectures on physiology that are given there, but am unable to do anything in the Laboratory, or to attend the cliniques or Virchow's lectures and demonstrations, etc. Du Bois-Raymond, an irascible man of about forty-five, gives a very good and clear, yea, brilliant, series of five lectures a week, and two ambitious young Jews give six more between them which are almost as instructive. The opportunities for study here are superb, it seems to me. Whatever they may be in Paris, they can_not_ be better. The physiological laboratory, with its endless array of machinery, frogs, dogs, etc., etc., almost "bursts my gizzard," when I go by it, with vexation. The German language is not child's play. I have lately begun to understand almost everything I hear said around me; but I still speak "with a slight foreign accent," as you may suppose--and, with all my practice in reading, do not think I can read more than half as fast as in English. It is very discouraging to get over so little ground. But a steady boring away is bound to fetch it, I suppose; and it seems to me it is worth the trouble. The general level of thoroughness and exactness in scientific work here is beyond praise; and the abundance of books on every division of every subject something we English have no idea of. It all comes from the thorough mode of educating the people from childhood up. The _Staats Examina_, before passing which no doctor can practise here in Prussia, exact an amount of physiological, and what we at home call "merely theoretical" knowledge of the candidate, which a young doctor at home would claim and receive especial distinction for having made himself master of. But the men here think it but fair; gird about their loins and set about working their way through. The general impression the Germans make on me is not at all that of a remarkably intellectually gifted people; and if they are not so, their eminence must come solely from their habits of conscientious and plodding work. It may be that their expressionless faces do their minds injustice. I don't know enough of them to decide. But I know the work is a large factor in the result. It makes one repine at the way he has been brought up, to come here. Unhappily most of us come too late to profit by what we see. Bad habits are formed, and life hurries us on too much to stop and drill. But it seems to me that the fact of so many American students being here of late years (they outnumber greatly all other foreign students) ought to have a good influence on the training of the succeeding generation with us. Tuck, Dwight, Dick Derby, Quincy, Townsend, and Heaven knows how many more are in Vienna. Tuck and Dwight write me that they are getting on remarkably well. I saw them both here in September and think T. D. improves a good deal as he grows older.