"So far are they distant from the true knowledge of physic which are ignorant of astrology, that they ought not rightly to be called physicians, but deceivers; for it hath been many times experimented and proved that that which many physicians could not cure or remedy with their greatest and strongest medicines, the astronomer hath brought to pass with one simple herb, by observing the moving of the signs."--FABIAN WITHERS. In the minds of most persons the terms talisman, amulet, and charm are synonymous. This may be more or less true as far as they are used to-day, but in the days when these terms meant something in real life there was a distinction. The talisman was probably at first an astronomical figure, but later the term became more comprehensive. Pope portrays this astrological import in his couplet, "Of talismans and sigils knew the power, And carefully watch'd the planetary hour." The amulet was always carried about the person, while the other two might be in the possession of the person in the case of the talisman, or, in the case of the charm, if a material object it could be placed entirely outside of one's care. The talisman and amulet must be a compound of some substance, the charm might be a gesture, a look, or a spoken word. Notice the example of charms according to Tennyson's words, "Then, in one moment, she put forth the charm Of woven paces and of waving hands." They were all used for defensive purposes, _i. e._, to keep away evil, in the form of demons, disease, or misfortune, but they might, especially the talisman, also attract good. Their power was of a magical character, and was exercised in a supernatural manner. The idea of the talisman probably originated from the belief that certain properties or virtues were impressed upon substances by planetary influences. "A talisman," says Pettigrew, "may in general terms be defined to be a substance composed of certain cabalistic characters engraved on stone, metal, or other material, or else written on slips of paper." Hyde quotes a Persian writer who defines the Telesm or Talismay as "a piece of art compounded of the celestial powers and elementary bodies, appropriated to certain figures or positions, and purposes and times, contrary to the usual manner."