"Oh! I know what it is," said Willy, "though I never saw it before; it is a piece of the cake Granny slapped so hard, and they have sent it me, because I gave them the teetotum and the marbles." This proved true; but until Willy explained it, his papa and mamma could not understand what he meant. Willy begged they would taste the cake, and having eaten a little bit himself, he went to bed and soon fell asleep. THE FACTORY VISITED. The next day they went to see the factory, or cotton mills, at Milford. As there was no railroad from Derby to Milford, they were driven with horses, and Willy was very glad to see his old friends, the horses, once more. It is true, that they did not go so fast as the train, and that he was impatient to arrive, and was continually popping his head out of the window in hopes of seeing the factory. His father told him that he must look out for the smoke from the chimney of the great steam engine which put all the machinery in motion; but Willy answered, "It is a water-wheel, Papa, not a steam-engine, that makes every thing turn at these mills. Johnny told me so." Willy felt a sort of pride that he knew something his papa did not; but when he thought about it, he said to himself, it would be very foolish to be proud of that, 'for it was only by chance I heard it.' At last they reached Milford, and the carriage drove into a large court-yard surrounded by buildings in which the work was carried on. Willy was at first a good deal bewildered at the sight of the machinery, and the noise it made in working. In one room he saw large bales of cotton wool which had been brought from foreign countries, and which men were unpacking. Willy observed that it looked untidy and dirty, not like the nice cotton wool mamma had at home. "You will see the difference after it is carded," said one of the men. "We begin by carding or pulling it to pieces, and then we squeeze it between two great rollers, and you shall see how clean it comes out." And he took them into another room, where the wool came out from between two rollers, and it looked so white and soft that Willy said, it put him in mind of wreaths of snow. He asked this man if he knew a little boy called Johnny, whose mother was blind. "Yes," replied he, "I am his uncle. Have you seen him lately? I have not heard of him for a long time." Willy was much pleased to have found out Johnny's uncle, and to be able to tell him that Johnny was well, and to give him news of all the family. They then went into another work-room, where they saw the cotton twisting into threads, and the children busy joining these threads when they broke. This pleased him much, for after all he had heard from Johnny, they seemed like old acquaintances; but he asked what those children were doing who went about wiping every thing.