The concert overture In Nature's Realm (Czech: V přírodě, koncertní ouvertura), Op. 91, B. 168, was written by Antonín Dvořák in 1891. It is the first part ("Nature") of a "Nature, Life and Love" trilogy of overtures written by Dvořák. The other two parts of the trilogy are the Carnival Overture, Op. 92 ("Life") and Othello, Op. 93 ("Love").[1]
The overture is scored for two flutes, two oboes, English horn, two clarinets, bass clarinet, two bassoons, four horns, two trumpets, three trombones, tuba, timpani, triangle, cymbals and strings.