Little Jack Rabbit and Mr. Wicked Wolf by David Cory

Now, let me see where we left off in the last story. Oh, yes; now I remember. Professor Jim Crow had just corrected Granddaddy Bullfrog, who was dreadful angry to think that he had made a mistake in saying the sun got up every morning at the same time. And, just as he was going to say something more, a little tadpole swam up to the log and called out:

"Granddaddy Bullfrog, please take care, The Miller's Boy is just over there. He'll throw a stone at you, I know, If you don't quickly dive below."