The next day and the next pass by in a serene manner. The waves are smooth now, and we can all eat and sleep. We might have enjoyed ourselves very well, I fancy, if the Ariel, whose capacity was about three hundred and fifty passengers, had not on this occasion carried nearly nine hundred, a hundred, at least of whom were children of an unpleasant age. Captain Semmes captured the Ariel once, and it is to be deeply regretted that that thrifty buccaneer hadn't made mince-meat of her, because she is a miserable tub at best, and hasn't much more right to be afloat than a second- hand coffin has. I do not know her proprietor, Mr. C. Vanderbilt. But I know of several excellent mill privileges in the State of Maine, and not one of them is so thoroughly "Dam'd" as he was all the way from New York to Aspinwall. I had far rather say a pleasant thing than a harsh one; but it is due to the large number of respectable ladies and gentleman who were on board the steamer Ariel with me that I state here that the accommodations on that steamer were very vile. If I did not so state, my conscience would sting me through life, and I should have harried dreams like Richard III. Esq. The proprietor apparently thought we were undergoing transportation for life to some lonely island, and the very waiters who brought us meals, that any warden of any penitentiary would blush to offer convicts, seemed to think it was a glaring error our not being in chains. As a specimen of the liberal manner in which this steamer was managed I will mention that the purser (a very pleasant person, by the way) was made to unite the positions of purser, baggage clerk, and doctor; and I one day had a lurking suspicion that he was among the waiters in the dining-cabin, disguised in a white jacket and slipshod pumps. . . . . I have spoken my Piece about the Ariel, and I hope Mr. Vanderbilt will reform ere it is too late. Dr. Watts says the vilest sinner may return as long as the gas-meters work well, or words to that effect. . . . . We were so densely crowded on board the Ariel that I cannot conscientiously say we were altogether happy. And sea-voyages at best are a little stupid. On the whole I should prefer a voyage on the Erie Canal, where there isn't any danger, and where you can carry picturesque scenery along with you--so to speak. II.--THE ISTHMUS. On the ninth day we reach Aspinwall in the Republic of Granada. The President of New Granada is a Central American named Mosquero. I was told that he derived quite a portion of his income by carrying passengers' valises and things from the steamer to the hotels in Aspinwall. It was an infamous falsehood. Fancy A. Lincoln carrying carpet-bags and things! and indeed I should rather trust him with them than Mosquero, because the former gentleman, as I think some one has before observed, is "honest."