The Caduceus of Mercury (Roman) and the Karykeion of Hermes (Greek)

The Caduceus of Mercury (Roman) and the Karykeion of Hermes (Greek)

Hermes
For then she bare a son, of many shifts, blandly cunning, a robber, a cattle driver, a bringer of dreams, a watcher by night, a thief at the gates, one who was soon to show forth wonderful deeds among the deathless gods. Born with the dawning, at mid-day he played on the lyre, and in the evening he stole the cattle of far-shooting Apollo on the fourth day of the month; for on that day queenly Maia bare him. So soon as he had leaped from his mother's heavenly womb, he lay not long waiting in his holy cradle, but he sprang up and sought the oxen of Apollo. But as he stepped over the threshold of the high-roofed cave, he found a tortoise there and gained endless delight.
http://ancienthistory.about.com/library/bl/bl_text_homerhymn_hermes.htm

Then Hermes answered her with crafty words: `Mother, why do you seek to frighten me like a feeble child whose heart knows few words of blame, a fearful babe that fears its mother's scolding? Nay, but I will try whatever plan is best, and so feed myself and you continually.
So saying, Apollo twisted strong withes with his hands meaning to bind Hermes with firm bands; but the bands would not hold him, and the withes of osier fell far from him and began to grow at once from the ground beneath their feet in that very place. And intertwining with one another, they quickly grew and covered all the wild-roving cattle by the will of thievish Hermes, so that Apollo was astonished as he gazed.

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The Caduceus of Mercury (Roman) and the Karykeion of Hermes (Greek)

Many "medical" organisations use a symbol of a short rod entwined by two snakes and topped by a pair of wings, which is actually the caduceus or magic wand of the Greek god Hermes (Roman Mercury), messenger of the gods, inventor of (magical) incantations, conductor of the dead and protector of merchants and thieves. It is derived from the Greek karykeion = "herald's staff", itself based on the word "eruko" meaning restrain, control.
http://www.drblayney.com/Asclepius.html

Image
http://www.flickr.com/photos/paulinsf/2236513014/