"I'm talking about whether anything can be something else," I told him. He said, "I suppose that's what you call mental digestion." "It's logic," I told him. "If we were in that car, the nine of us, it would come down here, wouldn't it? Don't you know what the attraction of gravity is?" "It never attracted me," he said. "The heaviest part of a thing goes down," I said. "If you were up there you'd only come down here. The top car is the bottom one. Everything is something different. _Up_ means where you're not. See? What do we care?" We all sat there with our heads thrown back looking at the car away up above us. "See how it rocks?" Dorry said. "I bet it's good and breezy up there." "Why don't the others rock?" Hunt asked. "Search me," I said. "There's nothing on either side of that one at the top," Westy said. "There isn't even much of the wheel up there to break the force of the wind." "Correct," I said. "Take two credits--and one cookie. Here." "There isn't any such thing as the top of a wheel," Dorry said. "Sure there is," I told him; "the part that's at the top is the top." "The part that's at the top of what?" he came back at me. "I should worry," I said. "Don't you think I've got wheels enough in my head without bothering about a ferris-wheel?" So then we all started singing that crazy song that we used to sing when we were being hauled all over the country in our camp on wheels: "There was a Duke of Yorkshire, He had ten thousand men; He marched them up the hill, And then he marched them down again. And when they're up, they're up, And when they're down, they're down; And when they're only half way up, They're neither up nor down." CHAPTER XIX UP IN THE AIR It was nice in there. "This is a good place to hide after killing a bandit," Warde Hollister said. "Look out, you'll strain your neck," I said to Dorry, because he was craning his neck looking up. He said, "I'm trying to decide which car is the one that was at the bottom when we came along. I think it's that one up top." "They're all the same, only different," I said. He said, "If I'm right it means that the wheel went just half way around--one half a revolution." "Some highbrow," I said. "Don't talk about revolutions, they remind me of history. A half a revolution is better than the French Revolution. Take your feet off me. Do you want a whole car to yourself?" "It's pretty crowded in here," Westy said. "Well, go up on the top floor if you're not satisfied," I told him. "You'll get a good view up there." "How do you know there's a good view in that car?" Pee-wee said. "I put it in there when the car was down here," I told him. "Ask me something hard. Stop rocking, you make me dizzy." Of course as soon as I said that they all started rocking the car. That shows how they obey their patrol leader. The car went swinging more and more and the rusty old wheel creaked.