in; some additional machinery, tanks for carrying water, and chemicals for making the gas, boxes of provisions, various measuring instruments and other supplies were put in the proper places, until the cabin was filled almost to its capacity. Of course particular attention had been paid to the ship proper, and every portion was gone over until Mr. Sharp was sure it was in shape for a long flight.
"Now the question is," he said to Tom one evening, "who shall we take with us? You and I will go, of course, but I'd like one more. I wonder if your father can't be induced to accompany us? He seemed to like the trial trip."
"I'll ask him to-morrow," said the lad. "He's very busy to-night. If he doesn't care about it, maybe Garret Jackson will go."
"I'm afraid not. He's too timid."
"I'd like to take Ned Newton, but he can't get any more time away from the bank. I guess we'll have to depend on dad."
But, to the surprise of Tom and Mr. Sharp, the aged inventor shook his head when the subject was broached to him next day.
"Why won't you go, dad?" asked his son.
"I'll tell you," replied Mr. Swift. "I was keeping it a secret until I had made some advance in what I am engaged upon. But I don't want
