"And if there are six hundred and forty acres in one square mile," continued Johnny, "in a quarter of a square mile there would be one-fourth of that, which is one hundred and sixty acres."

"Why, if there are that many acres in the park, one acre wouldn't be any thing," replied Felix. "It isn't a large park at all."

Johnny laughed as he replied, "Isn't our yard of pretty good size?"

"Yes."

"Well, our yard hasn't a quarter of an acre in it, I am sure. Let's measure it to-morrow, and see just what part of an acre there is in it."

"How can you tell?" replied Felix.

"Why, don't you know?" replied Johnny.

"No. How did you learn how?"

"Why, by studying square measure at school."

"I guess your schools are different from ours, then: I didn't learn any thing but the table, and how to do a few sums; and just as soon as I had learned that, I forgot all about it!—I say, I can't stand this! I'll go and call Clyde in, and have a good time with him."