"A balloon is something that goes up in the air," answered Squinty, "and
it has bags of sand in it."

"Well, I can go up in the air, when I climb a tree," went on Slicko,
with a jolly laugh. "Am I a balloon?"

"No, you are not," said Squinty. "A balloon is very different."

"Well, I know where there is some sand," spoke Slicko. "I could get some
of that and put it in leaf-bags. Would that make me a balloon?"

"Oh, no, of course not," Squinty answered. "You could never be a
balloon. But if you know where there is some sand perhaps you know where
there is some sour milk. I am very hungry."

"I never heard of sour milk," replied the girl squirrel. "But I know
where to find some nuts. Do you like hickory nuts?"

"I--I guess so," answered Squinty, thinking, perhaps, they were like
acorns. "Please show me where there are some."

"Come on!" chattered Slicko. She led the way through the woods, leaping
from one tree branch to another over Squinty's head. The little pig ran
along on the ground, through the dry leaves. Sometimes he went on four
feet and sometimes he stood up straight on his hind feet.

"Can you do that?" he asked the squirrel. "It is a trick the boy taught
me."

"Oh, yes, I can sit up on my hind legs, and eat a nut," the squirrel