The line became the Inman and International Company, and set forth to build a couple of large, powerful steamships which would be in advance of the _City of Rome_ in speed, though not quite so large. Already there had been small twin-screw ships, but the _City of New York_ and the _City of Paris_ were to be driven by twin-screws of a size and power which had not yet been produced. It was fitting that the Inman Line which had introduced the successful screw liner to the Atlantic should also be the pioneers of the very big steamships fitted with twin-screws. These two vessels were taken over in 1893, when the Inman Line became reorganised, and passed from the British flag to sail under the eagle of the American Line. Nowadays they sail from Southampton under the names of the _New York_ and the _Philadelphia_ respectively. The illustration facing page 166 shows the _City of Paris_ (afterwards called the _Paris_, and only later still the _Philadelphia_) getting under way from New York. Her graceful bow, with its bowsprit and figure-head, is reminiscent of the old clipper sailing ships. The high dome of the first cabin dining-saloon will be seen rising in the space between the fore-mast and the bridge, and the promenade deck runs practically the whole length of the ship from the bows to the stern. The hulls of these steamships are built of mild steel, and in addition to possessing a double bottom throughout their entire length in which a considerable amount of water ballast can be carried, they are divided into fifteen water-tight compartments. The bulkheads of the latter come right up to a height of 18 feet above the water-line, so that in case of collision the ship could still keep afloat even if three compartments were open to the sea. Their two engine rooms are separated from each other by means of a longitudinal bulkhead, and they are driven by two separate sets of triple-expansion engines. We have already seen that triple-expansion is just the principle of the compound engine carried one stage farther, and if the desire for attaining the high speed contemplated were to be gratified it was inevitable that this method should have been adopted. With the exception of a very few quadruple-expansion engined ships, such as the Cunard _Ivernia_, the White Star _Baltic_, and the German _Kaiser Wilhelm II._, most modern liners which have not been fitted with turbines are of the triple-expansion type. It may not be out of place, therefore, very briefly to explain the working of this. [Illustration: THE “CITY OF PARIS” (NOW THE “PHILADELPHIA”) (1893). _From a Photograph. By permission of the American Line._] [Illustration: THE “OPHIR” (1891). _From a Photograph. By permission of Messrs. Anderson, Anderson & Co._]