And yet it is distinctly an American triumph. American genius designed it, American skill built it, and American workshops made it. About 1837 the Screw Dock across the river, then known as the Hydrostatic Lifting Dock, was built. In order to construct it the Americans of that day were obliged to have the cylinders cast in England. What a stride from 1837 to 1883—from the Hydrostatic Dock to the New York and Brooklyn Bridge!