I knew that from these larvae with their white, waxen bodies would come butterflies; but as I looked at them, I could not believe it. None the less I went to look at them on the twentieth day, to see what had become of them.

On the twentieth day, I knew, there was to be a change. Nothing was to be seen, and I was beginning to think that something was wrong, when suddenly I noticed that the end of one of the cocoons grew dark and moist. I thought that it had probably spoiled, and wanted to throw it away. But then I thought that perhaps it began that way, and so I watched to see what would happen. And, indeed, something began to move at the wet end. For a long time I could not make out what it was. Later there appeared something like a head with whiskers. The whiskers moved. Then I noticed a leg sticking out through the hole, then another, and the legs scrambled to get out of the cocoon. It came out more and more, and I saw a wet butterfly. When all six legs scrambled out, the back jumped out, too, and the butterfly crawled out and stopped. When it dried it was white; it straightened its wings, flew away, circled around, and alighted on the window.