The obvious success of this early installation slowly led to its imitation elsewhere among the railroads of the land--a third-rail suburban plan on the New Haven from Bristol through New Britain to Hartford, Connecticut, and a branch of the same system down to Nantasket Beach, Massachusetts. Yet the process was slow indeed. Your typical railroader is particularly averse to novelties. It was not until about fifteen years ago that electric installation of any considerable size came into being: the large suburban services that were created by the New York Central, the New Haven, and the Pennsylvania, coincident with the similar suburban services in Oakland, California, and in Portland, Oregon, and in some of the longer tunnels of the land; the Hoosac tunnel of the old Fitchburg, the tunnel of the Michigan Central under the Detroit River, and that of the Great Northern through the Cascades in Washington being notable instances of this last sort of installation. After these came the large installations of the Norfolk and Western through the Alleghanies and of the Chicago, Milwaukee, and St. Paul--of which much more in a moment. And after this a great hiatus, the huge rise in material and construction costs of every sort, the war, and the present paralysis of our railroad development. Recently there has come a demand, from the laity of the railroad world at least, that there be a revival of progress in this extension of electrical power upon our standard railroads. McAdoo sensed this well before he left his high office and said that at least one-fifth of the railroad mileage should be operated electrically at the earliest possible opportunity. And more recently there has come a larger realization to the land of its wholesale waste in potential water-power, as well as a gradual closing and increasing expense of its coal-supply. The big builders and designers of our steam locomotives have not been asleep to this movement. They have met it in very recent years by a real improvement in the quality of that machine. For many years the steam locomotive grew in quantity--in mere size and bulk, if you please--rather than in quality. Once again we were captivated by the use of the word "big." When we read not many years ago of the coming of the first 200-ton locomotive we drew in our breath a little. Four hundred thousand pounds! And without its great load of coal and water at that. What a monster! Here, indeed, was Frankenstein. But what old Frank could do in smashing down bridges and rail levels we wotted not of. Yet what was the 200-ton locomotive compared with the 300-ton and the 400-ton monsters that the Santa Fe and the Delaware and Hudson began installing about a dozen years ago? It seemed as if no limit could be reached.