Detail of the figure called “Chrysopée [” manufacture gold] Cleopatra “in 2325 alchemical manuscript in the BNF dated thirteenth century (fol. 188, vo, Berthelot {1885}. Frontispiece) . Registration ν τ πν means "The All is One,” according to a design that could date back to Xenophanes (Sheppard 1962: 92).

The page of the ouroboros, in Hieroglyphica of Horapollo (Horapollo 1599: 8).

(Also) In the fifth century, in his praise of Stilicho, Claudian has described the cave of the universe as that of eternity that “a snake embraces its contours, its teeth while gnawing silence eternal blue embellishes its scales; devouring its tail bent his head, and in a circular motion, turns on itself forever ”(Deonna 1952: 164). Around the same time, the Alexandrian philosopher Horapollo (ραπόλλων) added that if ourovore represents the universe, then the scales are the stars (Horapollo 1599: 8), the book arrived in Florence in 1419 (Gagnon 2001: 68 - 70) and published in Paris in 1543, includes an engraving depicting the ouroboros (fig. 13) and will have a profound influence on many emblemata (collections of emblems) that will ensure the ourovore great popularity, that expanding the it was already in the occult circles and among medieval alchemists (Kuehn, 2011: 147-149) -the latter representing willingly ourovore salamander, symbol of calcination, but they also saw the figure of the androgynous oneness of mercurial spirit and dynamics of opposites.