AMERICAN INDUSTRIES SINCE COLUMBUS.
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are many mills in the United States that can produce more than ten times as much in the same time. In the more perfectly arranged
![](http://upload.wikimedia.org/wikipedia/commons/thumb/1/1d/PSM_V40_D041_Night_scene_outside_a_casting_house.jpg/500px-PSM_V40_D041_Night_scene_outside_a_casting_house.jpg)
Fig. 65.—Night Scene outside a Casting-house.
steel-works the molten metal is taken directly from the blast-furnace to the converter, and, after being "blown," is cast