"Don't say you're worried on account of what Andy Foger may do," interrupted Mr. Sharp.

"I'm not. I'll attend to Andy, all right. I was going to say that my father's illness might interfere. He's not well at all. I'm quite worried about him."

"Oh, I sincerely hope he'll be all right," remarked the balloonist. "We want you in this race. In fact, we're going to feature you, as they say about the actors and story-writers. The committee is planning to do considerable advertising on the strength of Tom Swift, the well-known young inventor, being a contestant for the ten-thousand-dollar prize."

"That's very nice, I'm sure," replied Tom, "and I'm going to do my best. Perhaps dad will take a turn for the better. He wants me to win as much as I want to myself. Well, we'll not worry about it, anyhow, until the time comes. I want to show you some new features of my latest aeroplane."

"And I want to see them, Tom. Don't you think you're making a mistake, though, in equipping it with a wireless outfit?"

"Why so?"

"Well, because it will add to the weight, and you want such a small machine to be as light as possible."

"Yes, but you see I have a very light engine. That part my father helped me with. In fact, it is the lightest air-cooled motor made, for the amount of horsepower it develops, so I can afford to put on the extra weight of the wireless outfit. I may need to signal when I am flying along at a hundred miles an hour."

"That's so. Well, show me some of the other good points. You've certainly got a wonderful craft here."

Tom and Mr. Sharp spent some time going over the Humming-Bird and in talking over old times. The balloonist paid another visit to Mr. Swift, who was feeling pretty good, and who expressed his pleasure in seeing his old friend again.