Sublimation

Woodcut engraving depicting the seventh key of

Woodcut engraving depicting the seventh key of

Alchemical symbolism: toad and serpent represent

Alchemy Illustration

Chemical Laboratory - Test for Arsenic 1846

Sphagnum moss manufactured for surgical dressings, WW1

alchemy, allegory, vial as symbol of sublimation

alchemy, allegory, sublimation and purgation