Then he invited the directors to take a ride.
He took the place of engineer himself.
Away they flew over the thirteen miles in an hour.
The directors took courage, and the road was soon finished.
Years after, when Mr. Cooper had become a great man, he was invited to visit Baltimore.
The old engine was brought out, much to the delight of the people, who cheered again and again at sight of it.
Mr. Cooper soon built at Trenton, N.J., the largest rolling mill in the United States.
He also built a large blast furnace, and steel and wire works in different parts of Pennsylvania.
