The Burgess Animal Book For Children in "A Worker And A Robber"

"Now we come to the largest family of the Rodent order, the Rat family, which of course includes the Mice," said Old Mother Nature, after calling school to order at the old meeting-place. "And the largest member of the family reminds me very much of the one we learned about yesterday."

"I know!" cried Ryder Rabbit. "You mean Jerry Muskrat."

"Go to the head of the class, Ryder," said Old Mother Nature, smiling.