The Adventures of Tom Bombadil, X: Oliphaunt

The poem Oliphaunt is in the Lord of the Rings story recited by Sam Gamgee in The Two Towers (Book IV, Chapter 3), the volume where it was first published. Sam Gamgee explains "That's a rhyme we have in the Shire [...] we have our tales too, and news out of the South, you know."  This bestiary poem is related to an earlier one imagined by Tolkien called Iumbo.