"You never know till you try," rejoined Roy. Then he turned to Willie and demanded, "What was the disc like that you saw?"
"If I knew, I'd make one," said Willie.
"Well," said Roy in a tone of disgust, "you know whether it was a foot across or not, and whether it was round or square."
"It was round, of course," said Willie, "and the same size as the dollar. I told you that before."
"We can make a disc the size of a dollar, anyway, even if it doesn't get us anywhere," said Roy, putting the coin on a sheet of paper and outlining it with a pencil. Then with scissors he cut the disc out.
"You saw that disc, or one like it, Henry," continued Roy. "What did it look like to you?"
"Just like a spider-web, as Willie says," replied Henry.
"All right, we'll make a spider-web," said Roy.
He seized his pencil, made a dot in the centre of the disc, and from the dot drew straight lines that radiated in different directions. Then he drew a number of concentric circles about his dot.
"I don't see how that helps any," he said, examining his drawing. "Yet that's the kind of thing they used to mark that dollar."