And how she did it Marjorie never knew, but she made an example in Partial Payments so interesting, and so clear, that the girls not only understood it, but thought it fun.

Miss Hart said she was Mr. White, and the two children were Mr. Brown and Mr. Green, who each owed her the same sum of money. It was to be paid in partial payments, and the sharp and business-like Mr. White insisted on proper payments and exact interest from the other two gentlemen, who vied with each other to tell first how much was due Mr. White. There was some laughing at first, but the fun changed to earnest, and even the kittens were forgotten while the important debts were being paid.

"Good-bye, arithmetic!" cried Miss Hart, as the problem entirely finished, and thoroughly understood, she tossed the papers aside; "good-bye for to-day! Now, for something pleasanter."

"But that was pleasant, Miss Hart," said Marjorie; "I didn't think arithmetic could ever be pleasant, but it was. How did you make it so?"

"Because I had such pleasant little pupils, I think," said Miss Hart, smiling. "Now for a few calisthenics with open windows."

The windows were flung up, and under Miss Hart's leadership they went through a short gymnastic drill.

"Doesn't that make you feel good?" said Marjorie, all aglow with the exercise, as they closed the windows, and sat down again.

"That's no sort of a drill, really," said Miss Hart; "but it will do for to-day. When we get fairly started, we'll have gymnastics that will be a lot more fun than that. But now for our botany lesson."

"Botany!" cried Midge; "I've never studied that!"

"Nor I," said Delight, "and I haven't any book."