"Mr. George," said Josie, "are these boiled eggs, or baked eggs, or roasted eggs, or what?"
"They seem to be steamed eggs," said Mr. George.
"I suppose," said Rollo, "that by digging about here in the sand, we might find a place where it would be just warm enough to hatch eggs."
"No doubt," said Mr. George.
Just then Rollo observed that the two young men whom he and Josie had followed down into the crater were standing at a little distance, and attentively regarding some sort of instrument which they had in their hands.
"I mean to go and see what they are doing," said Rollo.
So saying, he looked into Mr. George's face, and waited to see if Mr. George had any objection to his going.
"Very well," said Mr. George.
So Rollo went off to the place where the young men were standing, and soon afterwards Mr. George and the others of the party could see that the strangers were showing him the instrument, and apparently explaining it to him. Pretty soon Rollo returned and reported that the two young men were students, and that the instrument which they had was a metallic barometer, and that they were measuring the height of the mountain with it.