The dance is so merry,

So merry in the greenwood.”

Master Olof at the Elfin Dance (Howitt’s tr.).

Fairies or fays.

These elves, who in England were called fairies or fays, were also enthusiastic musicians, and delighted especially in a certain tune which was known as the elf dance, and which was so irresistible that no one could hear it without dancing. If a mortal, overhearing the air, ventured to play it, he suddenly found himself incapable of stopping and was forced to play on and on until he died of exhaustion, unless he were deft enough to play the tune backwards, or some one charitably slipped behind him and cut the strings of his violin. His hearers, who were forced to dance as long as the tones continued, could only pause when they ceased.

The Will-o’-the-wisps.

In the North, in the mediæval ages, the will-o’-the-wisps were known as lights, for these tiny sprites were supposed to mislead travelers; and popular superstition claimed that the Jack-o’-lanterns were the restless spirits of murderers forced against their will to return to the scene of their crimes. As they nightly walked thither, it is said that they doggedly repeated with every step, “It is right;” but as they returned they sadly reiterated, “It is wrong.”

Oberon and Titania.

In later times the fairies or elves were said to be ruled by the king of the dwarfs, who, being an underground spirit, was considered a demon, and allowed to retain the magic power which the missionaries had wrested from the god Frey. In England and France the king of the fairies was known by the name of Oberon; he governed fairyland with his queen Titania, and held his highest revels on earth on Midsummer night. It was then that the fairies all congregated around him and danced most merrily.

“Every elf and fairy sprite