In the last act Selika, alone and dying, should see the paradise of the Brahmins appear as in a vision.

But Faure wanted to appear again at the finale, so they had to adapt a bit taken from the third act and suppress the vision.

This is the reason why Nelusko succumbs so quickly to the deadly perfume of the poisonous flowers, while Selika resists so long.
The riturnello of Selika's aria, which should be performed with lowered curtain as the queen gazes over the sea and at the departing vessel far away on the horizon, became a vehicle for encores--the last thing that was ever in Meyerbeer's mind.

But the worst was the liberty Fetis took in retouching the orchestration.

As a compliment to Adolph Sax he substituted a saxaphone for the bass clarinet which the author indicated.