The greater number of these railroads reach from east to west, and so follow the natural lines of traffic within the country. Two or three systems--such as the Illinois Central and the Delaware & Hudson--run at variance with this natural trend, and may be classed as cross-country routes. A few properties have no long-reaching routes, but derive their incomes from the transportation business of a comparatively small exclusive territory, as the Boston & Maine in Northern New England, the New Haven in Southern New England, both of them recently brought under a more or less direct single control, and the Long Island. Still other properties find their greatest revenue in bringing anthracite coal from the Pennsylvania mountains to the seaboard, and among these are the Lackawanna, the Lehigh Valley, the Central Railroad of New Jersey, and the Philadelphia & Reading systems. The very great railroads of America are the east and west lines. These break themselves quite naturally into two divisions--one group east of the Mississippi River, the other west of that stream. The easterly group aim to find an eastern terminal in and about New York. Their western arms reach Chicago and St. Louis, where the other group of transcontinentals begin. Giants among these eastern roads are the Pennsylvania and the New York Central. Of lesser size, but still ranking as great railroads within this territory are the Chesapeake & Ohio, the Baltimore & Ohio, and the Erie. Several of the anthracite roads enjoy through connections to Chicago and St. Louis, breaking at Buffalo as an interchange point, about half way between New York and Chicago. There are important roads in the South, reaching between Gulf points and New York and taking care of the traffic of the centres of the section, now rapidly increasing its industrial importance. The western group of transcontinental routes are the giants in point of mileage. The eastern roads, serving a closely-built country, carry an almost incredible tonnage; but the long, gaunt western lines are reaching into a country that has its to-morrow still ahead. Of these, the so-called Harriman lines--the Southern Pacific and the Union Pacific--occupy the centre of the country, and reach from the Mississippi to the Pacific. The Santa Fe and the Gould roads share this territory.