Pomp and Circumstance Marches central "Trio" section. March No. 4 was completed on 7 June 1907, and dedicated "To my friend Dr. G. Robertson Sinclair, Hereford". It was first performed on 24 August 1907, in the Queen's Hall, London, conducted by the composer. The instrumentation is: piccolo (with 3rd flute), 2 flutes, 2 oboes, cor anglais, 2 clarinets in B, bass clarinet in B, 2 bassoons, contrabassoon, 4 horns in F, 3 trumpets in A, 3 trombones, tuba, timpani (3), percussion (side drum, bass drum & cymbals), 2 harps, and strings. The "Trio" was used by Elgar in a song called "The King's Way"
Pride, Pomp and Circumstance comments about her husband Robert's missing survey maps and the path to the Rocky Mountains. Crane lets Durant know that the rival Central Pacific Railroad has already laid its 40 miles of track, pushing east from California. Cullen is put in charge of security for the peace talks while the Cheyenne are in Hell on Wheels. He asks Elam (Common) to keep his crew civil during their visit. Elam speaks of their recent fisticuffs, and Cullen accuses him of cheating. Elam seems shocked at the mention of his peppered hand wraps and denies cheating. Out of view from Durant's coach,