DEAR FOLKS,--We have been representing the United States all we knew how today. We went to Sebastopol, after we got tired of Constantinople (got your letter there, and one at Naples,) and there the Commandant and the whole town came aboard and were as jolly and sociable as old friends. They said the Emperor of Russia was at Yalta, 30 miles or 40 away, and urged us to go there with the ship and visit him--promised us a cordial welcome. They insisted on sending a telegram to the Emperor, and also a courier overland to announce our coming. But we knew that a great English Excursion party, and also the Viceroy of Egypt, in his splendid yacht, had been refused an audience within the last fortnight, so we thought it not safe to try it. They said, no difference--the Emperor would hardly visit our ship, because that would be a most extraordinary favor, and one which he uniformly refuses to accord under any circumstances, but he would certainly receive us at his palace. We still declined. But we had to go to Odessa, 250 miles away, and there the Governor General urged us, and sent a telegram to the Emperor, which we hardly expected to be answered, but it was, and promptly. So we sailed back to Yalta. We all went to the palace at noon, today, (3 miles) in carriages and on horses sent by the Emperor, and we had a jolly time. Instead of the usual formal audience of 15 minutes, we staid 4 hours and were made a good deal more at home than we could have been in a New York drawing-room. The whole tribe turned out to receive our party-Emperor, Empress, the oldest daughter (Grand-Duchess Marie, a pretty girl of 14,) a little Grand Duke, her brother, and a platoon of Admirals, Princes, Peers of the Empire, etc., and in a little while an aid-de-camp arrived with a request from the Grand Duke Michael, the Emperor's brother, that we would visit his palace and breakfast with him. The Emperor also invited us, on behalf of his absent eldest son and heir (aged 22,) to visit his palace and consider it a visit to him. They all talk English and they were all very neatly but very plainly dressed. You all dress a good deal finer than they were dressed. The Emperor and his family threw off all reserve and showed us all over the palace themselves. It is very rich and very elegant, but in no way gaudy.