"This is Mr. Patterson, of the Farmers' Harvester Company, Bob, with their latest model tractor plow. Show him how to operate it, Patterson," said Mr. White, "and then let him take it around the field himself."
"Oh, but I couldn't run a piece of machinery like that," protested
Bob.
"Sure you can. That's why we brought it out here," said the banker.
"Oh, no, I'm sure it would be too complicated for me," protested Bob.
"That's where you are mistaken," said the agent, jumping down from the operator's seat. "Come here and I'll explain the mechanism to you in a few minutes."
After he had finished, he turned to Bob and said:
"This thing is so simple, it'll run itself, except at the corners, where you'll have to operate it to turn."
"How do you mean, run itself?" asked the unbelieving boy.
"Well, I'll show you," said the agent, as he adjusted one or two of the levers, and, much to Bob's astonishment, the tractor set off down the field by itself.
"Why, how do you do that?" he asked, staring open-mouthed after the disappearing tractor.