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 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." I intrust my bag to a speckled native, who confidentially gives me to understand that he is the only strictly honest person in Aspinwall.  The rest, he says, are niggers--which the colored people of the Isthmus regard as about as scathing a thing as they can say of one another. I examine the New Grenadian flag, which waves from the chamber-window of the refreshment saloon.  It is of simple design.  You can make one. Take half of a cotton shirt, that has been worn two months, and dip it in molasses of the Day & Martin brand.  Then let the flies gambol over it for a few days, and you have it.  It is an emblem of Sweet Liberty. At the Howard House the man of sin rubbeth the hair of the horse to the bowels of the cat, and our girls are waving their lily-white hoofs in the dazzling waltz.