L. Frank Baum,
Glinda of Oz — Chapter 17: Under the Great Dome
(1920)
“ So Glinda beckoned the Diamond Swan, which swam gracefully to a position near them. Before anyone could speak Coo-ee-oh called to them in a rasping voice—for the voice of a swan is always harsh and unpleasant—and said with much pride:"Admire me, Strangers! Admire the lovely Coo-ee-oh, the handsomest creature in all Oz. Admire me!""Handsome is as handsome does," replied the Scarecrow. ”
