"Bless my shoe laces! there are enough problems to solve on this earthquake island."
"I thought of this,' said Tom. "I'll send out our call for help from nine to ten in the morning. Then I'll wait, and send out another call from two to three in the afternoon. Around seven in the evening I'll try again, and then about ten o'clock at night, before going to bed."
"That ought to be sufficient," agreed Mr.Fen wick. "Certainly we must save our gasolene, for there is no telling how long we may have to stay here, and call for help."
"It won't be long if that scientist Parker has his way," spoke Mr. Damon, grimly. "Bless my hat band, but he's a most uncomfortable man to have around; always predicting that the island is going to sink! I hope we are rescued before that happens."
"I guess we all do," remarked Mr. Fenwick, "But, Tom, here is another matter. Have you thought about getting an answer from the unknown—from some ship or wireless station, that may reply to your calls? How can you tell when that will come in?"
"I can't.
"Then won't you or some of us, have to be listening all the while?"
"No, for I think an answer will come only di-
