The Hand of the Philosophers is an alchemical symbol first appearing in Isaac Holland’s Die Hand der Philosophen, 15th century. Each feature of the hand corresponds to a quality, element and/or ingredient of the alchemical process. The thumb features a crown & quarter moon and represents the chemical saltpetre, which Holland calls “The King & Lord of all salts.”
The index finger features the star with six points, the meaning of which is only available to initiated alchemists, and the salt Roman Vitriol. The middle features the Sun, and represents Sal ammoniac. Above the ring finger is a lantern, representing alum. The little finger represents both the lock and key of the “hand” as well as common salt. In the palm, the fish represents Mercury, and the fire is just fire.
Diagrams from Testamentum Theorica, 15th C, a seminal text on medical alchemy. The book, attributed to Ramon Llull, was originally written in Catalan and is one of the first texts to present The Philosopher’s Stone as a way to turn metals into gold and create an elixir of life. Source: Embassy of the Free Mind
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The Dance of Death or (Danse Macabre) is an allegory used in art and literature, popular in the Late Middle Ages, that uses the personification of death to remind us that death unites us all, regardless of one’s station in life. Sources: The Dance of Death (1493) by Michael Wolgemut and “The dance of death in painting and in print” (1887) by T. Tindall Wildridge