"Well" said Jack, "I don't see why I shouldn't tell you what brings us here. My mother owns a tract of timber land a little further around the mountain, and it is pretty much all she does own in the world. She's a widow, and she's had a pretty hard time to bring up three boys of us"—turning and indicating his two brothers—"and now we see a way of helping her. They're going to build a railroad down in the valley on the other side of this mountain, and they want railroad ties. So we have organized a party and come up here to chop down trees, make ties and send them down the mountain by a chute."

"Um," answered the mountaineer. "What's them there things for?" pointing to the Doctor's scientific instruments hanging about on the trees.

"They are scientific instruments, if you know what that means," answered Jack, who was beginning to grow irritable under the intruder's impertinent questioning.

"What are you goin' to do with 'em? Will they help you to chop wood?"

"No, of course not. But the Doctor here," indicating him, "is much interested in science and he has brought his instruments along so as to make our stay on the mountains as profitable as possible in the way of study."

"My friend," broke in the Doctor, addressing the mountaineer, "If you will come to our camp when we get settled I'll show you how I use these things and what they tell me. One of them tells me how high up we are and when it's going to storm or clear away; another shows how fast the wind is blowing, another how cold it is and so on."

"Which one on 'em tells the strength of whiskey and how much tax they ought to be paid on it?"

This question was asked with a peculiar tone of sneering incredulity and suspicion.

"Not one of them has any relation whatever to whiskey or taxes or anything of the sort," answered the Doctor.

By this time Jack's patience was exhausted and by common consent Jack was the leader of the party. He turned to the tree behind him, seized his shot gun, presented it at the mountaineer's breast before that worthy could bring his rifle to his shoulder, and in an angry, but still cold voice, said: