"I am of the opinion that some of the bones are broken," announced the Professor.

"Oh, that's too bad!" groaned the boys.

"I suspected as much," nodded Tad.

"How did it happen?" asked the Professor.

"He slipped on a stone," answered Butler, while Stacy gazed up into the tree tops.

"A round stone," observed the fat boy solemnly.

"Yes, a round stone," nodded Tad, giving Stacy a quick look half of amusement, half of reproof.

Professor Zepplin did the best he could with the injured member, bathing it in liniment, then bandaging it skilfully, while Tad looked on with keen attention. He never lost an opportunity to learn, but in this instance, like the others of the party, Tad was grave, for this accident might seriously interfere with their journey. Mr. Vaughn was made as comfortable as possible, but he suffered a great deal of pain during the rest of the day. He was not a good patient, insisting that he ought to be up and doing. Tad resolutely commanded the guide to keep on his back and remain quiet. He devoted his attention to Cale all the rest of the day and through the night, bathing the injured member frequently. Stacy Brown, on the other hand, spent much of his waking hours out by the moose.

On the following morning just as they were about to sit down to breakfast a loud halloo caused them to start up and rush down to the water's edge. The smoke from their campfire had attracted the attention of some woodsman. They saw him making his way along the shore of the lake.

"Got a snack for a hungry man?" called a cheerful voice.