"The Galton Whistle" is a science fiction short story by American writer L. Sprague de Camp, a story in his Viagens Interplanetarias series. It is the first (chronologically) set on the planet Vishnu. It was first published, as "Ultrasonic God," in the magazine Future Combined with Science Fiction Stories in the issue for July, 1951. It first appeared in book form under the present title (that preferred by the author) in the collection The Continent Makers and Other Tales of the Viagens, published in hardcover by Twayne Publishers in 1953, and in paperback by Signet Books in 1971. It also appeared in the anthologies (Belmont Books, 1963, under the original title), The Good Old Stuff (St. Martin's Griffin, 1998), and (Science Fiction Book Club, 1999). The story has been translated into Po