The impression is that Saint-Saens anticipated the popularity of "The Carnival of the Animals" and to avoid embarrassment, only allowed it to be published after his death in 1921. It is originally scored for just 11 players including 2 pianos but is sometimes played by a small orchestra. "The Elephant" is written for a Double Bass and 1 piano, depicting a comic impression of a lumbering elephant although a Cello or a Bassoon are alternative instruments which can play the Double Bass part. On mfiles we also have sheet music for an arrangement of "The Elephant" for Piano Solo. The full work of 14 pieces in the original arrangement for 11 instruments is available from at these links from Sheet Music Plus (US) or The Music Room (UK).