"Some plow, Mr. White," said Bob, taking off his hat and running his fingers through his sandy hair, while he still kept his gaze riveted on the tractor which now turned the southeast corner and started up on the east side of the field. "Better turn your team out of the furrow, Bob," advised the banker, "and let the tractor get ahead of you. I want you to follow it around the field, so you can see how much faster it travels than your team." Bob had scarcely turned his team out before the tractor came up opposite them, and with a wave of the hand and a cheery good morning, the operator of the machine went by the admiring boy and the smiling banker. "Now get your team in behind him, Bob, and see if you can catch him," said the banker. Bob had not gone more than a few rods before it became evident to him that his team would never overtake the fast-moving tractor. In, fact, before he had gone half the distance, the tractor was up behind him again on the second round, so he turned his team out again to let it go by. This time, however, the operator brought the machine to a stop and said: "Come over and have a look at her, young man." "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. "Come down to the corner and I'll show you," said the agent. "But I can't leave the team," said Bob. "Oh, I'll take care of the team," said the banker laughing. "You go down and operate the plow."