"Oh, it is very simple," said the guinea pig boy, as he modestly looked down at the ground. "It's this way."
Then he whistled through his teeth again, slowly and faster, just to show how it was done.
"I wish I could learn how to do that," said the monkey. "If I ever get caught up a tree again by a bear I could whistle for myself, and make believe some hunter's dogs were coming to help me."
"I'll show you," said Buddy Pigg, and he told the monkey how to put his tongue against his teeth and how to blow through his lips. Well, the red monkey tried it, and he tried again, but he couldn't seem to whistle.
"Perhaps if I stand on my head I could do better," he said, and in a moment there he was standing on his head and trying to whistle upside down. But still he couldn't do it.
"Try hanging by your tail," suggested Buddy Pigg, and the little red chap did so, but still it was of no use. He hung there by his tail so long that Uncle Wiggily was afraid the monkey's head might fall off, so he made him get down.
Then the red chap tried again and again, but he couldn't whistle a bit, and at last the old gentleman rabbit said:
"I believe I know what the trouble is."
"What?" asked Buddy.
"Why, you see you have no tail, Buddy, and you are a good whistler," went on the rabbit, for you know it's really so--guinea pigs have no tails--though I'm not allowed to tell you the reason just yet.