und, Russ? I thought wheels always went around!" Vi, as
Violet was usually called, loved to ask questions, and sometimes they were
the kind that could not be easily answered. This one seemed to be that
kind, for Russ went on whistling and did not reply.

"Why doesn't the footstool go around if it's a wheel?" asked Vi again.

"Oh, 'cause--'cause----" began Russ, holding his head on one side and
stopping halfway through his whistled tune. "It doesn't go 'round?"

"Oh, I got a riddle! I got a riddle!" suddenly cried Laddie, who was as
fond of asking riddles as Vi was of giving out questions. "What kind of a
wheel doesn't go 'round? That's a new riddle! What kind of a wheel
doesn't go 'round?"

"All wheels go around," declared Russ, who, now that he had the footstool
fixed where he wanted it, had started his whistling again.

"What's the riddle, Laddie?" asked Vi, shaking her curly hair and looking
up with her gray eyes at her brother, whose locks were of the same color,
though not quite so curly as his twin's.

"There she goes again! Asking more questions!" exclaimed Rose, who had
come back from putting away the broom, and was ready to play the steamboat
game with her older brother.

"But what _is_ the riddle?" insisted Vi. "I like to guess 'em, Laddie!
What is it?"

"What kind of a wheel doesn't go 'round?" asked Laddie again, smiling at
his brothers and sisters as though the riddle was a very hard one indeed.

"Pooh! _All_ wheels go around--'ceptin' _this_ one, maybe," said Russ.
"And this is only a make-believe wheel. It's the nearest like a steamboat
paddle-wheel I could find," and he gave the footstool a little kick. "But
all kinds of wheels go around, Laddie."

"No, they don't," exclaimed the little fellow. "That's a riddle! What kind
of a wheel doesn't go 'round?"

"Oh, let's give it up," proposed Rose. "Tell us, Laddie, and then we'll
get in the make-believe steamboat Russ has made, and we'll have a ride.
What kind of a wheel doesn't go around?"

"A wheelbarrow doesn't go 'round!" laughed Laddie.

"Oh, it does _so_!" cried Rose. "The _wheel_ goes around."

"But the _barrow_ doesn't--that's the part you put things in," went on
Laddie. "_That_ doesn't go 'round. You have to push it."

"All right. That's a pretty good riddle," said Russ with a laugh. "Now
let's get on the steamboat and we'll have a ride," and he began to whistle
a little bit of a new song, something about down on a river where the
cot