"I'll remember that, sir," answered Billy.
"About Gehsundheit and Umberufen—they are not very useful, it's true, but the two old fellows have been out of work for so long that I hire them out of charity."
"I suppose they mean well."
"Oh! yes; but be careful of well meaners unless they are good doers—that's what counts."
"Yes, sir," said Billy.
"And now good-by—keep your teeth clean and don't eat any dirt."
"Of course not, I never do eat dirt."
"I know you don't, but it is my rule to give advice that can be easily followed—that's the way I keep my friends. Good-by."
"Good-by, and thank you," called Billy, and in less than half a jiffy Mr. Gas and his toy balloons were only a speck on the horizon.