Metropolitan Subway and Elevated Systems Bulletin 49

"Metropolitan Subway and Elevated Systems" by General Electric Company is a scientific publication that gives a complete look at the rapid transit systems, especially the elevated and subway lines, in big cities like Boston, Brooklyn, Chicago, and New York. It tells about the history, how they work, and how they're built. The publication offers specific information, for example, describing the routes, power, trains, and stats of systems such as the Boston Elevated Railway. It highlights the importance of electricity in the growth of city transportation. Expansions in systems like the Brooklyn Rapid Transit and the Chicago Elevated Railroads are also talked about. It's full of facts and technical info, making it helpful for historians, engineers, and city planners who want to learn about how city transit systems have grown over time.