Now in order to subtract, explained a teacher to the class in mathematics, things always have to be of the same denomination. For instance, we couldn’t take three apples from four years, nor six horses from nine dogs.

A hand went up in the back of the room.

Well, Johnny? smiled the unsuspecting teacher.

Please, ma’am! shouted the boy, can’t you take four quarts of milk from three cows?


Little Elizabeth and her mother were having luncheon together, and the mother, who always tried to impress facts upon her young daughter, said—

These little sardines, Elizabeth, are sometimes eaten by the larger fish.

Elizabeth gazed at the sardines in wonder, and then asked—

But, mother, how do the large fish get the cans open?