“You’re the doctor,” Bob said, shaking his head. “But it looks to me as though nothing short of an earthquake would start them.”

“Well, we try heem,” Jean said, as he started back toward the rear of the drive.

He was back in a few minutes, carrying the dynamite together with a battery outfit which he had gotten from the big scow, which always accompanies the drive, loaded with supplies.

“Now we feex heem,” Jean declared, and in a short time the three sticks of dynamite had been placed where Jean thought they would do the most good.

Soon the wires were connected and laid over the logs to the shore, and all was ready to close the circuit.

“Let her go,” Jean shouted, and Bob pressed the button.

But, to their surprise, nothing happened. Again and again he closed the circuit, but with no result.

“Guess we got a bum connection somewhere,” he declared, as he began to inspect the wire.

“Every connection’s all right now,” he declared a few minutes later, after he had examined the last one.

But again nothing happened when he pressed the button.