THey made also the Image of the head and taile of the Dragon of the Moon, namely betwixt an Aeriall and fiery circle, the likeness of a Serpent, with the head of an Hawke tyed about them, after the manner of the great letter Theta, & they made it whē Jupiter with the head obtain'd the midst of Heaven: which Image they affirm to availe much for the success of Petitions, and would signifie by this Image a good and fortunate Genius, which they would represent by this Image of the Serpent; for the Egyptians and Phenitians do extoll this creature above all others, and say it is a divine creature and hath a divine nature; for in this is a more acute spirit, and a greater fire then in any other, which thing is manifested both by his swift motion without feet, hands or any other instruments and also that it often reneweth his age with his skin, and becometh young again: but they made the Image of the taile like as when the Moon was Ecclipsed, in the Taile, or ill affected by Saturn or Mars, and they made it to introduce, anguish, infirmity and misfortune; and they called it the evill Genius; such an Image a certain Hebrew had included in a golden Belt full of Jewels, which Blanch the daughter of the Duke of Borbon (either willingly or ignorantly) bestowed on her husband Peter King of Spain, the first of that name, with which when he was girt, he seemed to himself to be compassed about with a Serpent; and afterwards finding the Magicall virtue fixed in the girdle, for this cause he forsook his wife.
Book II, Chap. XLV. Of the Images of the head and Tayle of the Dragon of the Moon.
From Three Books of Occult Philosophy (Henry Cornelius Agrippa, translated by J. F. (probably John French), 1651), p. 303.