"How much more do you know, sir?"

"I know that it is globe-shaped—I know how big it is—I know how heavy it is; and I know that it turns round and round continually."

"O sir, do you know all these things?"

"Yes."

"Please, Dr. Sandford, how can you?"

"You would mature into a philosopher, in time, Daisy."

"I hope not," muttered Preston.

"I know that it is globe-shaped, Daisy, because it turns round and lets me see all sides of it."

"Is one side different from another?"

"Only so far, as that there are spots here and there," Dr. Sandford went on, looking at the exceeding eagerness in Daisy's eyes. "The spots appear at one edge—pass over to the other edge, and go out of sight. After a certain time I see them come back again where I saw them first."