VII
THE SWIMMING-POOL
Two or three days after the fishing expedition the boys had gathered together at the swimming-pool, Ben Gile with them. They had been racing, and climbing trees, and were very warm. "Come, boys," said the guide, "let's sit down a minute before you go into the water. It won't do to bathe when you're too warm. Look round on the stones under the water and see what you can find."
"Look at this," called Peter; "it's just like a sponge."
"It is a fresh-water sponge."
"I didn't suppose sponges grew in these parts at all," said Jimmie.
"Oh yes, there are many of them in the ponds."
"See this, sir," shouted Jack; "what funny little legs it has!"