Читать книгу Birds and Nature Vol. 9 No. 3 [March 1901] - Various - Страница 3

Letty was out under the big elm tree watching the kitten playing with the autumn leaves that were on the ground.

Suddenly something struck Letty on the shoulder. She looked around quickly, thinking that somebody had thrown a stone at her. No one was in sight, though she looked all about and even up in the tree. Then she noticed that the kitten was rolling something with its paws. She stooped and picked up what looked like a little bunch of elm leaves. She thought it strange that they should be stuck together, and when she found that it was quite heavy she was still more surprised.

She carried it into the house to show to her mother. “What is it?” she asked. “It came down off the tree and hit me on my shoulder. Is there a stone inside of it?”

“No,” said her mother. “It is a chrysalis. Some worm that lived on the elm tree drew these leaves together and spun a little case inside, and when the leaves were ready to fall, the chrysalis came down with them.”

“What kind of a worm do you suppose it was?”

“I do not know, but it must have been a large one, or the chrysalis would not be so heavy. We will keep it, and in the spring when the worm has turned into a butterfly and comes out of the case, perhaps we can learn what its name is.”

“But how will it get out?” asked Letty, anxiously. “It is so hard and tough. I tried to pull off one of the leaves and it stuck on tight.”

“Yes,” said her mother, “it is very tough and you could not tear it open with your fingers even if you tried very hard. But the butterfly throws out some kind of fluid which softens the silk – for it is a kind of silk, you know – and makes a hole large enough to crawl through. It does not have to be very big, as the butterfly’s wings are soft and wet. It has to let them dry and grow strong and stiff before it can fly.”