The good lady was in an ecstasy of delight. And well might she be proud of her boy; for there were touches in this picture, which old artists, who had spent a lifetime in the business, need not have been ashamed of. Many a year afterwards, this wonderful production was exhibited at the Royal Academy in London.

When Benjamin was quite a large lad, he was sent to school at Philadelphia. Not long after his arrival, he had a slight attack of fever, which confined him to his bed. The light, which would otherwise have disturbed him, was excluded from his chamber by means of closed wooden shutters. At first, it appeared so totally dark, that Ben could not distinguish any object in the room. By degrees, however, his eyes became accustomed to the scanty light.

He was lying on his back, looking up towards the ceiling, when suddenly he beheld the dim apparition of a white cow, moving slowly over his head! Ben started, and rubbed his eyes, in the greatest amazement.

"What can this mean?" thought he.

The white cow disappeared; and next came several pigs, who trotted along the ceiling, and vanished into the darkness of the chamber. So lifelike did these grunters look, that Ben almost seemed to hear them squeak.

"Well, this is very strange!" said Ben to himself.

When the people of the house came to see him, Benjamin told them of the marvellous circumstance which had occurred. But they would not believe him.

"Benjamin, thou art surely out of thy senses!" cried they. "How is it possible that a white cow and a litter of pigs should be visible on the ceiling of a dark chamber?"

Ben, however, had great confidence in his own eyesight, and was determined to search the mystery to the bottom. For this purpose, when he was again left alone, he got out of bed, and examined the window-shutters. He soon perceived a small chink in one of them, through which a ray of light found its passage, and rested upon the ceiling. Now the science of optics will inform us, that the pictures of the white cow and the pigs, and of other objects out of doors, came into the dark chamber, through this narrow chink, and were painted over Benjamin's head. It is greatly to his credit, that he discovered the scientific principle of this phenomenon, and, by means of it, constructed a Camera Obscura, or Magic Lantern, out of a hollow box. This was of great advantage to him in drawing landscapes.

Well; time went on, and Benjamin continued to draw and paint pictures, until he had now reached the age when it was proper that he should choose a business for life. His father and mother were in considerable perplexity about him. According to the ideas of the Quakers it is not right for people to spend their lives in occupations that are of no real and sensible advantage to the world. Now, what advantage could the world expect from Benjamin's pictures? This was a difficult question; and, in order to set their minds at rest, his parents determined to consult the preachers and wise men of their society. Accordingly, they all assembled in the meeting-house, and discussed the matter from beginning to end.