"I don't know that we can work it," went on Joe; "but if we can it ought to make a hit."

"That's the idea!" said the ring-master. "We've got to keep working for new hits in the circus business all the while."

For several days after that, whenever opportunity offered, Joe and Mr. Fleet put Toto through the jumping rehearsal, using the blanket. Finally, when they thought the dog would no longer be afraid, they took it away. But at first Toto refused to jump, and his master would not, of course, use force.

Finally, however, patience won, and when another dog, a little water spaniel, was put in the tank Toto seemed to think it was all right, and made his first leap from the high platform into the tank where the goldfish flitted about.

"Hurrah!" cried Joe, as the water splashed up, and the little dog swam to the edge of the tank to be lifted out by his master. "Hurrah! We'll have a diving dog yet!"

"But I'm afraid it will be some time before you can get him to stay under water as long as you do," said Mr. Fleet.

However, the first part was accomplished, and for several days after that Toto was given frequent practice in jumping into the tank, Joe not having yet taken his place beneath the surface.

Then one afternoon, when it was thought that Toto had lost all fear of the water, since he did the trick as naturally as he did some of his older ones, Joe got in the tank, and Mr. Fleet called to the dog to jump.

But the little animal flatly refused to leave the platform. No urging or coaxing could make it take the jump. Whether the sight of Joe in the tank frightened Toto, or whether the form of the boy fish was unduly magnified to the dog because of the fact that Joe was under the surface, could only be guessed at. The fact remained that Toto refused to jump, though when Joe climbed dripping out the dog quickly jumped in.

"Now, what do you think of that!" exclaimed Mr. Fleet. "Well, I've been up against just as queer things in a different way when training other dogs. You'll get them to the point of doing a trick, and maybe because a new kind of fly buzzes around their ears they balk. But we won't give up."