The day of the prize-giving drew near, and every boy save Tom was hard at work over his composition. He had tried five times, and each time the teachers had said his composition was very bad indeed, with the wrong words, awkward sentences, and punctuation that was truly awful. Now it happened that the day before the prize was to be given, a new locomotive arrived on the railroad, and stood, without wood or water, on the track of the repair-shop yard. It had been hauled up on the freight train, and had never been used on the road. After school a number of the boys went over to the yard to see the new engine, and among them was Tom Stayboltt.
It was a first-class passenger engine, built for high speed, and looking very handsome in its new paint and shining brass work. There were several men looking at the engine as the boys came up, and they gathered round to hear what might be said.
"An empty engine," remarked one of the men, "always seems to me a very helpless thing. It is so big and heavy, it is impossible to move it without steam-power, and yet it will not only move itself, but will drag many times its weight at forty miles an hour over the line."
"It is not the engine that moves," said another man. "It's the wood or coal and water—the fuel and steam. If it were not for the fire and water inside, it could never move at all."
"I can make her go without w-w-w-wood—wood or water."
This remark caused a laugh from the boys, and even the men smiled at the absurd statement. One man came over to where Tom stood, and said, "How would you do that, my boy?"
"I'd rather n-n-not—not tell."
"Why not?"
"Because I n-n-never t-t-tried—tried it."
"Oh, you mean you think you could, but you have never proved your theory by experiment."