Amidst the tossing and rolling, the groaning of penitent travelers, and the laboring of the vessel as she climbed those dark unstable mountains, my mind reverted feebly to Huxley's statement, that the bottom of this sea, for over a thousand miles, presents to the eye of science a vast chalk plain, over which one might drive as over a floor, and I tried to solace myself by dwelling upon the spectacle of a solitary traveler whipping up his steed across it. The imaginary rattle of his wagon was like the sound of lutes and harps, and I would rather have clung to his axletree than have been rocked in the best berth in the ship. LAND On the tenth day, about four o'clock in the afternoon, we sighted Ireland. The ship came up from behind the horizon, where for so many days she had been buffeting with the winds and the waves, but had never lost the clew, bearing straight as an arrow for the mark. I think, if she had been aimed at a fair-sized artillery target, she would have crossed the ocean and struck the bull's-eye. In Ireland, instead of an emerald isle rising out of the sea, I beheld a succession of cold, purplish mountains, stretching along the northeastern horizon, but I am bound to say that no tints of bloom or verdure were ever half so welcome to me as were those dark, heather-clad ranges. It is a feeling which a man can have but once in his life, when he first sets eyes upon a foreign land; and in my case, to this feeling was added the delightful thought that the "devil's hole" would soon be cleared and my long fast over. Presently, after the darkness had set in, signal rockets were let off from the stern of the vessel, writing their burning messages upon the night; and when answering rockets rose slowly up far ahead, I suppose we all felt that the voyage was essentially done, and no doubt a message flashed back under the ocean that the Scotia had arrived. The sight of the land had been such medicine to me that I could now hold up my head and walk about, and so went down for the first time and took a look at the engines,--those twin monsters that had not stopped once, or apparently varied their stroke at all, since leaving Sandy Hook; I felt like patting their enormous cranks and shafts with my hand,--then at the coal bunks, vast cavernous recesses in the belly of the ship, like the chambers of the original mine in the mountains, and saw the men and firemen at work in a sort of purgatory of heat and dust. When it is remembered that one of these ocean steamers consumes about one hundred tons of coal per day, it is easy to imagine what a burden the coal for a voyage alone must be, and one is not at all disposed to laugh at Dr. Lardner, who proved so convincingly that no steamship could ever cross the ocean, because it could not carry coal enough to enable it to make the passage.