FINDING NATURE’S TREASURES 
37 
cover. At last Uncle Jack had it cut open, too. Inside, it 
was nice and smooth. 
“Oh, it is dead,” said Marylee. “Isn't that too bad?” 
“No; it isn't dead,” replied Uncle Jack. “That is the 
brown pupa, and it is sound asleep. Watch it wriggle 
when I touch it.” Uncle Jack touched the pupa, and the 
back part of it moved. 
“Where did the caterpillar go?” asked Buddy. 
“Do you see that dried skin in the end of the cocoon?” 
asked Uncle Jack. “That is the caterpillar's skin. After 
he finished making the cocoon, he rested. Soon the skin 
split down his back, and was pushed to the back end of 
the cocoon, as the caterpillar changed to a pupa.” 
“I can see where its baby wings are,” said Marylee. 
“Yes, those are the baby wings. When the Cecropia 
caterpillar, we were watching on the other side of the 
bush, has finished his cocoon and wrapped himself in it, 
we shall take it home; so you can see the moth come out 
some day,” said Uncle Jack. 
