Caduceus as a symbol of medicine a review of 257 of the works bearing this printer's device only one was related to medicine. Similar use of the caduceus in printers' marks continues to the present day, with companies including F. A. Davis Company still using the symbol as an element of their insignia. There are a few other examples of use in this period. It may have been used as a symbol by Sir William Butts, physician to Henry VIII. Similarly, physician John Caius, founder of Caius College, Cambridge, and at the time President of the Royal College of Physicians, during official visits to his eponymous
Serpent (symbolism) of 8 serpents gnawing on the roots of Yggdrasil: Nidhöggr, Gravvitnir, Moin, Goin, Grábakr, Grafvölluðr, Svafnir and Ofnir. Sea serpents were giant cryptozoological creatures once believed to live in water, whether sea monsters such as the Leviathan or lake monsters such as the Loch Ness Monster. If they were referred to as "sea snakes", they were understood to be the actual snakes that live in Indo-Pacific waters (Family Hydrophiidae). Snakes entwined the staffs both of Hermes (the caduceus) and of Asclepius, where a single snake entwined the rough staff. On Hermes' caduceus, the snakes were not merely duplicated for symmetry,