“Well, what’s the good of that?”

“Good? Why, so that the men can ride up or down when they’re tired, and do away with the ladders.”

“Isn’t that absurd? I’m sure my father never meant to put a lot of money into this thing so as to give the men a ride up and down on a patent see-saw.”

“Oh I say, Joe, what a chap you are! What have you got in your head?”

“This old see-saw that Hardock and the engineer want us to have, of course.”

“Well, can’t you see how good it will be?”

“No, I can’t, nor you neither.”

“But don’t you see it sends the men all down eighteen feet into the mine?”

“Of course I can. Never mind the men. Suppose it’s me, and I step on. It sends me down eighteen feet.”

“Yes, at one stride, and then comes up again; can’t you see that?”