Skilfully steered, the Thalia moved slowly between high stone piers of massive construction; but the Euterpe, or upper part of the vessel, did not pass between the piers, but over them both, and when the pier-heads projected beyond her stern the motion of the lower vessel ceased; then the great piston, which supported the socket in which the ball of the Euterpe moved, slowly began to descend into the central portion of the Thalia, and as the tide was low, it was not long before each side of the upper hull rested firmly and securely upon the stone piers. Then the socket on the lower vessel descended rapidly until it was entirely clear of the ball, and the Thalia backed out from between the piers to take its place in a dock where it would be fitted for the voyage of the next day but one, when it would move under the Melpomene, resting on its piers a short distance below, and, adjusting its socket to her ball, would lift her free from the piers and carry her across the ocean. The pier of the Euterpe was not far from the great Long Island and New Jersey Bridge, and Roland Clewe, when he reached the broad sidewalk which ran along the river-front, walked rapidly towards the bridge. When he came to it he stepped into one of the elevators, which were placed at intervals along its sides from the waterfront to the far-distant point where it touched the land, and in company with a dozen other pedestrians speedily rose to the top of the bridge, on which moved two great platforms or floors, one always keeping on its way to the east, and the other to the west. The floor of the elevator detached itself from the rest of the structure and kept company with the movable platform until all of its passengers had stepped on to the latter, when it returned with such persons as wished to descend at that point. As Clewe took his way along the platform, walking westward with it, as if he would thus hasten his arrival at the other end of the bridge, he noticed that great improvements had been made during his year of absence. The structures on the platforms, to which people might retire in bad weather or when they wished refreshments, were more numerous and apparently better appointed than when he had seen them last, and the long rows of benches on which passengers might sit in the open air during their transit had also increased in number. Many people walked across the bridge, taking their exercise, while some who were out for the air and the sake of the view walked in the direction opposite to that in which the platform was moving, thus lengthening the pleasant trip. At the great elevator over the old Battery many passengers went down and many came up, but the wide platforms still moved to the east and moved to the west, never stopping or changing their rate of speed.