Silence, see Harpocrates and Tacita.

Sile′nus. A Bacchanalian demi-god, the chief of the Satyrs. He is generally represented as a fat, drunken old man, riding on an ass, and crowned with flowers.

“And there two Satyrs on the ground,

Stretched at his ease, their sire Silenus found.”

Singing, see Polyhymnia, Thanyris.

Si′rens, The. Sea nymphs, who by their music allured mariners to destruction. To avoid the snare when nearing their abode, Ulysses had the ears of his companions stopped with wax, and had himself tied to the mast of his ship. They thus sailed past in safety; but the Sirens, thinking that their charms had lost their powers, drowned themselves.

Sis′yphus, son of Æolus and Enaretta. He was condemned to roll a stone to the top of a hill in the infernal regions, and as it rolled down again when he reached the summit, his punishment was perpetual.

“I turned my eye, and as I turned, surveyed

A mournful vision! The Sisyphian shade,

With many a weary step and many a groan,