 We see a working dog, a beggar s dog, a shepherd s dog, and a milkman s dog. The working dog is locked inside a large wire wheel; the dog runs inside the wheel, turning it to run a machine. The beggar s dog pulls its legless master, who s sitting on a low cart, down the street. The shepherd s dog keeps a flock of at least 20 sheep in a tight circle. The milkman s dog pulls a cart on which is mounted a large cylinder of milk. A lad leads the dog to a house with a Dutch door; the top half of the door opens, and the lady of the house hands out a pitcher that the boy fills as the dog waits.