"I am sure I don't know," said Jimmieboy, still too full of wonderment to think out an answer to a riddle like that.

"Why, one goes off with a whole head of hair," said the Rocket, "and the other goes off only with a bang."

"That's good," said Jimmieboy. "Make it up yourself?"

"No," said the Rocket. "I got that out of the magazine."

"What magazine?" asked Jimmieboy, innocently.

"The powder-magazine," roared the Rocket, and then the Pin Wheel and other fire-works danced about, and threw themselves on the floor with laughter—all except the Torpedoes, which jumped up and down on a soft plush chair, where they were safe.

When the laughter over the Rocket's wit had subsided, one of the Roman Candles called to the Giant Cracker, and asked him to sing a song for Jimmieboy.

"I can't sing to-night," said the Cracker. "I'm very busy making ready my report for to-morrow."