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The former ships were built of wood, and had two or three water-tight compartments in the hold with doors in them, which were often left open, particularly when the ship was going to hit a rock. The modern leviathan is built of steel, and the water-tight bulkheads have no doors in them; they divide the ship into nine or ten water-tight compartments and endow her with as many lives as a cat. Their complete efficiency was established by the happy results following the memorable accident to the ‘City of Paris’ a year or two ago.