(Or, we may add, on Bradbury's heart!)
The story also has a cute little biography of Bradbury:
Most Ray Bradbury readers seem to think of him as a sort of Charles Addams character sprung to life. Actually he is a handsome, cheerful and enthusiastic trnasplanted Californian with wife (1) and children (2), who looks far more at home over a broiled steak than a dish of pickled owl's eyes. Yet few living authors have vast sweep of fantasy or chill brush of horror. We're proud to offer his newest story.