"Now we'll try it faster to-day," said the man, after Mappo had been in the circus about a week. "Run, Prince, and give Mappo a fast ride." Off started Prince, almost before Mappo was ready for him. And, just as you might expect, Mappo fell off and rolled over and over in the sawdust. "Chatter-chatter-chat! Bur-r-r-r! Buz-z-z-z-z! Wur-r-r-r-r!" went Mappo, excitedly.