INDEX 465 ILLUSTRATIONS PAGE Ready for the day's run _Frontispiece_ An early locomotive built by William Norris for the Philadelphia & Reading Railroad 18 The historic "John Bull" of the Camden & Amboy Railroad--and its train 18 A heavy-grade type of locomotive built for the Baltimore & Ohio Railroad in 1864. Its flaring stack was typical of those years 19 Construction engineers blaze their way across the face of new country 38 The making of an embankment by dump-train 39 "Small temporary railroads peopled with hordes of restless engines" 39 Cutting a path for the railroad through the crest of the high hills 44 A giant fill--in the making 44 The finishing touches to the track 45 This machine can lay a mile of track a day 45 "Sometimes the construction engineer ... brings his line face to face with a mountain" 52 Finishing the lining of a tunnel 52 The busiest tunnel point in the world--at the west portals of the Bergen tunnels, six Erie tracks below, four Lackawanna above 53 The Hackensack portals of the Pennsylvania's great tunnels under New York City 53 Concrete affords wonderful opportunities for the bridge-builders 68 The Lackawanna is building the largest concrete bridge in the world across the Delaware River at Slateford, Pa. 68 The bridge-builder lays out an assembling-yard for gathering together the different parts of his new construction 69 The new Brandywine Viaduct of the Baltimore & Ohio, at Wilmington, Del. 69 The Northwestern's monumental new terminal on the West Side of Chicago 82 The Union Station at Washington 83 A model American railroad station--the Union Station of the New York Central, Boston & Albany, Delaware & Hudson, and West Shore railroads at Albany 102