"That's just right for the house," said Uncle Robert. "How is it out of
doors?"

"Let's take it out and see," said Frank.

Out on the porch they went and eagerly watched the thermometer.

"It's moving--it's going down!" cried Donald.

"I'll hang it on this nail," said Frank.

"When they looked again Donald said:

"It's fifty-six now."

"How much colder is it than it was in the house?" asked Uncle Robert.

"Twelve degrees," said Frank, counting up the column.

"Oh, let's take it in by the stove," said Susie, "and see how far it
will go up."

"What makes you think it will go up by the stove?" asked Uncle Robert.

"Well," answered Susie, "if it goes down when it is cold I should think
it would go up when it is warm."

Susie took the little instrument, and, going into the kitchen, held it
close to the stove.