The belief that they were close upon the bear threw the boys into a flutter of excitement, and they walked slowly as they approached the tree, up which the hound was barking.

As has been stated, it was what was known as the red oak, very large, with branching limbs at no great distance from the ground.

"I see him!—I see him!" whispered Herbert, just as he caught his foot in a root and pitched forward.

"Where?"

Herbert picked up his hat, muttered something impatient, and then looked upward again, and found he was mistaken.

"I thought that big knot up there was the bear," replied the city youth, in meeker tones.

The boys slowly circled about the tree again and again, back and forth, scrutinizing trunk, limbs, and twigs so closely that a cat could not have concealed itself from view.

The result was disheartening: there was no bear in sight.

"May be the trunk is hollow," suggested Sam, "and he has gone into a hole."

They struck against the bark, but the sound showed that the wood beneath was solid. Besides, an examination of the bark itself failed to bring to view the scratching and abrasion that would have been made by a bear in going up, and especially in coming down, the trunk.

Bowser, beyond all question, had been "barking up the wrong tree."

"You're a pretty hunting dog, ain't you?" sneered Sam Harper, addressing the canine; "come here, that I may give you another switching."

But Bowser wheeled about, and, taking the trail again, trotted to the southward, his nose close to the ground, while he bayed at intervals of a few seconds.

"The bear ain't far off, you can make up your mind to that," said Herbert, still all excitement; "if we keep close to the dog, we'll run upon the other pretty soon."

In fact, the youthful Watrous showed such an interest in the sport that he forgot the danger which always accompanies it. Had he stopped a minute or so to reflect, he would have seen that now was the time for the three to stick together, for never was there likely to be an occasion which would demonstrate more certainly that in union there is strength.

Forgetful of this, Herbert sped forward so fast that in a brief while he vanished from view.

Nick shouted to him not to hasten so fast, but the young gentleman was not to be checked in that style, and he kept up his flight with undiminished speed.

"Let him go, then," said Nick, dropping down to a rapid walk, in which Sam joined him; "his legs are so long that he can outrun us both."

"Which is a good thing."

"Why so?"

"As soon as he catches sight of the bear, he will turn about and run with might and main."

"I'm not so sure of that," remarked Nick, who began to think there was more in Herbert than they had suspected.

"He is so anxious to get the animal that he do............