It is now the 20th,--time passed fast. I work to-day in herbariums De Candolle and Boissier, and to-morrow morning we go to Freiburg and Berne and the Bernese Oberland. We cannot be back now in England so early as we expected; but still hope to be there by the 20th September.... Thursday morning, after an early breakfast, went on by railroad to Kehl; left our luggage and took a carriage over the bridge of boats, across the lines of the French republic (?) into Strasburg. Saw Schimper;[6] then we went to the cathedral, viewed the grand front of this imposing structure, and the wonderful spire, the tallest in the world; were much struck with the grandeur of the interior, wholly lighted by stained glass, the greater part of it 400 or 500 years old. After visiting the Museum of Natural History, and arranging with Schimper to meet him in Switzerland, where he is to pass with his wife (a Swiss lady) a long vacation, we took our carriage and returned to the Baden side of the river, and came on to Freiburg (in the Breisgau) that evening, reaching it in the rain.... Professor Braun,[7] the brother of the first Mrs. Agassiz, was very kind to us. He is a very interesting man, of charming manners; his wife very sweet and charming, his children most engaging. Saturday afternoon we took a carriage, and with Professor Braun rode up a beautiful valley to the Höllenthal (French, Vallée d’Enfer), a rocky and wooded gorge of very striking scenery; wild and majestic, rather than terrible, as its name imports.... In the afternoon visited the cathedral, one of the finest and oldest in Europe, that is well preserved. Here nearly every part, and all the stained glass, of a most curious kind, is perfectly preserved; and the spire, though not so high as that of Strasburg, is as elaborate and light,--as it were of woven stone thread,--and even more beautiful.... Tuesday we rode from Bâle to Bienne (fifty-six miles) in a diligence, from eight A.M. to five P.M., through the Münster Thal, the grandest and most picturesque scenery of the Jura. Wednesday, a ride of three hours along lakes of Bienne and Neuchâtel brought us to Neuchâtel at eleven o’clock A.M. ... Professor Godet,[8] who received me most cordially, took me (with Mr. Coulon) up the Chaumont, 2,500 feet; but the Alps were obscured by clouds, at least the higher Alps, and we had no fine view of them; otherwise the view was very fine. We returned by the great boulder Pierre à Bot. All asked after Agassiz with much interest. Excursions are planned for us when we return.... * * * * *