L. Frank Baum,
Glinda of Oz — Chapter 15: The Great Sorceress
(1920)
“ Trot anxiously inquired of the Glass Cat."How silly!" exclaimed the creature in an irritated tone of voice; "nothing can hurt glass, and I'm too solid to break easily. But I'm annoyed at that leopard's impudence. He has no respect for beauty or intelligence. If he had noticed my pink brains work, I'm sure he would have realized I'm too important to be grabbed in a wild beast's jaws.""Never mind," said Trot consolingly; "I'm sure he won't do it again."They were almost in the center of the forest when Ojo, the Munchkin boy, suddenly said: "Why, where's Button Bright?" ”
