“I saw an exhibition of paintings of alchemists once,’ said Ruth. ‘It used to be a popular setpiece. There was one I liked by Joseph Wright of Derby―of an alchemist who’d accidentally discovered phosphorus. He’s just crouching there, staring in amazement at his test tube or alembic, or whatever you call it. A bloody good painting, actually.” AlchemistPhilosopher S StonePhosphorusAlembicChemical AstrologersJoseph Wright Of DerbyTest Tube Book:The Apothecary’s House Source: The Apothecary’s House