Caduceus as a symbol of medicine why he chose a herald's wand as a symbol, making it clear that he chose it as a symbol of prudence. This same passage was also earlier referenced by Engle in refuting Garrison's claim. Engle and Friedlander are not the only ones to have noted that the use of the Caduceus by Caius had nothing to do with supposed medical symbolism; as indicated in a publication produced by the Royal College of Physicians itself: "[...] by introducing the caduceus into the ceremony of the College of Physicians, Caius unintentionally added to the confusion between the two emblems for later times,
Caduceus as a symbol of medicine of which was the caduceus. The Guildhall Museum in London holds a 3rd-century oculist's seal with caduceus symbols both top and bottom. The seal was apparently used to mark preparations of eye medicine. It is believed likely that rather than being evidence of a medical association "per se", this is rather an allusion to the words of the Greek poet Homer who described the caduceus as "possessing the ability to charm the eyes of men", which relates to the business of an oculist. Walter Friedlander proposed that early association of the caduceus with medicine might have derived from the association