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"St. John," and its sister ship, the "Dean Richmond," are two of the finest steam-ships on the river. They are buildings rather than boats; terraces rise one above another, with galleries and verandahs. One would almost have thought it was a gardener's floating plantation. There are twenty flag-staffs, fastened with iron tressings, which consolidate the whole building. The two enormous paddle-boxes are painted al fresco, like the tympans in the Church of St. Mark, at Venice. Behind each wheel rises the chimney of the two boilers, the latter placed outside, instead of in the hull of the steam-ship, a good precaution in case of explosion. In the centre, between the paddles, is the machinery, which is very simple, consisting only of a single cylinder, a piston worked by a long cross-beam, which rises and falls like the monstrous hammer of a forge, and a single crank, communicating the movement to the axles of the massive wheels.