Note 256 — BOOK VIII
John Conington translation
186:22. Ægis. Famous shield of Jupiter (worn also by Minerva), bearing in the centre the baneful head of the Gorgon Medusa. The Ægis when shaken wrought terror and dismay on the wearer’s foes. The shaking was accompanied by thunder and lightning—thus the Ægis was the symbol of the whirlwind that drives the storm-cloud.