"But I do not know how large that would be. I cannot think."

"Nor can I, Daisy. But I can help you. Suppose we, and our earth, were in the centre of the sun; and our moon going round us at the same distance from us that she is now; there would be room enough for the whole concern, as far as distances are concerned."

"In the sun, Dr. Sandford?"

"In the sun."

"And the moon as far off as she is now?"

"Yes."

"But the moon would not be in the sun too?"

"Plenty of room, and to spare."

Daisy was silent now. Preston looked from her face to the doctor's.

"Not only that, Daisy; but the moon then would be two hundred thousand miles within the circumference of the sun; the sun's surface would be two hundred thousand miles beyond her."