DEAR FOLKS,--We are having a lively time here, after a stormy trip. We meant to go to San Miguel, but were driven here by stress of weather. Beautiful climate. Yrs. Affect. SAM. GIBRALTAR, June 30th, 1867. DEAR FOLKS,--Arrived here this morning, and am clear worn out with riding and climbing in and over and around this monstrous rock and its fortifications. Summer climate and very pleasant. Yrs. SAM. TANGIER, MOROCCO, (AFRICA), July 1, 1867. DEAR FOLKS, Half a dozen of us came here yesterday from Gibraltar and some of the company took the other direction; went up through Spain, to Paris by rail. We decided that Gibraltar and San Roque were all of Spain that we wanted to see at present and are glad we came here among the Africans, Moors, Arabs and Bedouins of the desert. I would not give this experience for all the balance of the trip combined. This is the infernalest hive of infernally costumed barbarians I have ever come across yet. Yrs. SAM. AT SEA, July 2, 1867. DR. FOLKS,--We are far up the intensely blue and ravishingly beautiful Mediterranean. And now we are just passing the island of Minorca. The climate is perfectly lovely and it is hard to drive anybody to bed, day or night. We remain up the whole night through occasionally, and by this means enjoy the rare sensation of seeing the sun rise. But the sunsets are soft, rich, warm and superb! We had a ball last night under the awnings of the quarter deck, and the share of it of three of us was masquerade. We had full, flowing, picturesque Moorish costumes which we purchased in the bazaars of Tangier. Yrs. SAM. MARSEILLES, FRANCE, July 5, 1867. We are here. Start for Paris tomorrow. All well. Had gorgeous 4th of July jollification yesterday at sea. Yrs. SAM. The reader may expand these sketchy outlines to his heart's content by following the chapters in The Innocents Abroad, which is very good history, less elaborated than might be supposed. But on the other hand, the next letter adds something of interest to the book-circumstances which a modest author would necessarily omit. ***** To Mrs. Jane Clemens and family, in St. Louis: YALTA, RUSSIA, Aug. 25, 1867.