A TREASURE WITH A HORN 
“Uncle Jack! Where are you?” called Marylee. 
“Here I am,” he answered. He saw she had something 
in her hand. “Have you found another treasure?” 
“Yes,” said Marylee, as she came up to him. “I was 
looking at that vine over there, and saw that something 
had been eating the leaves. I tried to find what had 
eaten them, and I saw this big green worm with a horn 
on its tail. What can it be?” 
“That is a fine treasure,” answered Uncle Jack, as 
he took the leaf with Marylee’s treasure upon it. “But 
are you sure that it is a worm?” 
“I think that it is,” she answered. “We always call 
things worms that crawl like this one does.” 
“I know that many people call them worms, but they 
are not worms,” said Uncle Jack. “We should learn to 
call things by their right names.” 
“What is the right name for it?” asked Bess, who had 
come to see what Marylee had found. 
“I think I know now,” said Marylee. “Last year 
Mother told us that the baby swallow-tail butterfly was 
a big caterpillar. Is this a caterpillar?” 
“Yes,” answered Uncle Jack, “but this one is not a 
baby butterfly. It is a baby moth. Both baby moths and 
baby butterflies are called caterpillars.” 
29 
