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In an eighteenth-century alchemical manuscript, "The Wisdom of the Ancient Philosophers, or Their Teaching on the Supreme and Universal Medicine", once kept in the Capuchin library on the Rue Saint-Honoré and describing a universal medicine capable of pre
Let us take four from the many scenes: Fermentatio, Putrefactio, Solutio, Calcinatio. They show, first, the substance: a toad half-submerged in water and speckled with rising bubbles. This is the textbook visual representation of the "putrefaction of matter, often accompanied by the release of gas.
Putrefaction is followed