The lads sprang up and began opening their packs, and in a few moments their tents were being pitched, the miners watching them with interested gaze as the odd little tents went up.

"Well, doesn't that beat all?" wondered Ellison. "I never saw anything quite like that outfit before. Where'd you get them?"

"Mr. Butler invented those tents," answered the Professor proudly.

"Then Mr. Butler's all right," smiled the miner.

[CHAPTER XVIII]

THE CAMP SUFFERS A LOSS

All the rest of the afternoon Professor Zepplin was absorbed in examining rocks, specimens of ore, and dirt. He was deep in consultation with Dunkan and the others of the prospectors.

"Yes, there are strong indications here, but thus far I have found nothing that would pay," said the Professor. "The sample you say you got from Stillman Gulch is the best of all. It is, I might say, most promising. Is that where the other man claims to have found pay dirt?"

"Somewhere in that vicinity. We don't know the exact location."

"Are you trying to locate a vein of ore, too?" questioned the Professor.