P. S. We are not taking six days to go from Hamburg to Heidelberg because we prefer it. Quite on the contrary. Mrs. Clemens picked up a dreadful cold and sore throat on board ship and still keeps them in stock--so she could only travel 4 hours a day. She wanted to dive straight through, but I had different notions about the wisdom of it. I found that 4 hours a day was the best she could do. Before I forget it, our permanent address is Care Messrs. Koester & Co., Backers, Heidelberg. We go there tomorrow. Poor Susy! From the day we reached German soil, we have required Rosa to speak German to the children--which they hate with all their souls. The other morning in Hanover, Susy came to us (from Rosa, in the nursery) and said, in halting syllables, “Papa, vie viel uhr ist es?”--then turned with pathos in her big eyes, and said, “Mamma, I wish Rosa was made in English.” (Unfinished) Frankfort was a brief halting-place, their destination being Heidelberg. They were presently located there in the beautiful Schloss hotel, which overlooks the old castle with its forest setting, the flowing Neckar, and the distant valley of the Rhine. Clemens, who had discovered the location, and loved it, toward the end of May reported to Howells his felicities. ***** Fragment of a letter to W. D. Howells, in Boston: SCHLOSS-HOTEL HEIDELBERG, Sunday, a. m., May 26, 1878. MY DEAR HOWELLS,--....divinely located. From this airy porch among the shining groves we look down upon Heidelberg Castle, and upon the swift Neckar, and the town, and out over the wide green level of the Rhine valley--a marvelous prospect. We are in a Cul-de-sac formed of hill-ranges and river; we are on the side of a steep mountain; the river at our feet is walled, on its other side, (yes, on both sides,) by a steep and wooded mountain-range which rises abruptly aloft from the water's edge; portions of these mountains are densely wooded; the plain of the Rhine, seen through the mouth of this pocket, has many and peculiar charms for the eye. Our bedroom has two great glass bird-cages (enclosed balconies) one looking toward the Rhine valley and sunset, the other looking up the Neckar cul-de-sac, and naturally we spend nearly all our time in these--when one is sunny the other is shady. We have tables and chairs in them; we do our reading, writing, studying, smoking and suppering in them. The view from these bird-cages is my despair. The pictures change from one enchanting aspect to another in ceaseless procession, never keeping one form half an hour, and never taking on an unlovely one.