The Technical World Magazine, Volume 6

American become bridge building built called canal carried cent Chicago coal complete connected construction cost course cover electric engine entirely fact feet field five follows Forest four give Government hand head heat hour hundred inches interest iron Island Italy kind known Lake land less light living look machine material means mechanical metal method miles motor natural necessary operation Panama pass piece pipe plant possible pounds practical present produced railroad recently result river road ship shown shows side speed steam steel street surface taken Technical things tion tons track train turbine turned United weight wheel wire woman women York