went on. "It's the cold that makes 'em so. It's very cold to-day, and
soon it will be winter, with lots of snow and ice! Oh! I just love
winter!"

"Come on, Hal!" called Mab. "Let's hurry home before it gets any
colder!"

"Let's run!" suggested Hal. "When you run you get warm, and you don't
mind the cold."

"What makes us get warm when we run?" his sister inquired, as she took
hold of his hand and raced along beside him.

"I don't know," Hal answered, "but we'll ask Daddy when we get home.
He can tell us everything."

"Huh! Not everything!" cried Sammie Jones, one of the nice boys with
whom Hal played, "Your father doesn't know everything."

"Yes he does, too!" exclaimed Hal. Doesn't he, Mab?"

"Yep!" answered the little girl, shaking her head from side to side so
fast that you could hardly tell which were her curls and which was her
hair ribbon.

"Huh! Does your father know what makes a steam engine go?" asked
Sammie.

"Sure he does!" said Hal. "And he told us about it once, too; didn't
he, Mab?"