To be ranked with this sort of operating economy was the work undertaken by Regional Director R. H. Aishton at Chicago when early in the spring of 1918 he began consolidating train movements so that instead of the several competing trunk-lines coming down from out of the Northwest, each operating competing through freight-trains each day into the great terminal and interchange yards at St. Paul, and there shifting and resorting their cars incredibly for distribution between the six trunk-lines leading for another five hundred miles down into Chicago, through trains were operated solidly from the Puget Sound points through to Lake Michigan. For through freight the great railroad yards upon the line between St. Paul and Minneapolis represented no more of a stop than was necessary for changing engines, cabooses, and crews. Moreover these through trains were distributed in alternation between the Northern Pacific and Great Northern lines from the Pacific coast down to the Twin Cities, but because of its superior mileage and gradient conditions they were handled on to Chicago almost exclusively by the Northwestern. Nor was Chicago--with almost inevitable traffic congestion, despite the fact that it now bears upon its western rim the largest interchange and clearing-house yard for freight-cars in the entire world--a railroad point big enough to break this simple scheme of through service. Take the export corn specials out of the Missouri valley. One of these trains, let us say, consisted of thirty-one cars from Omaha and five cars from Sioux City, all moving under special government permits, and was routed intact from Omaha to Philadelphia. It came east over the Northwestern to a point well outside of the Chicago congested district. There it was turned to the tracks of the Elgin, Joliet, and Eastern, one of the outermost of the belt-line railroads which encircle Chicago. The Elgin, Joliet, and Eastern in turn delivered the train--intact and unchanged, you will remember--to the Nickel Plate, which at Buffalo handed it to the Lackawanna, which in turn carried it as far as Scranton, giving it there to the Central Railroad of New Jersey and the connecting Philadelphia and Reading for prompt handling through to tide-water and a waiting ship at Philadelphia. There was no switching and but little delay en route, and the train generally went through from the Missouri to the Delaware in considerably less than a week. Such a prompt through movement, with its saving of time and money, was quite unheard of in the days of competitive railroad management.