Alchemy is an early protoscientific practice combining elements of chemistry, physics, astrology, art, semiotics, metallurgy, medicine, mysticism, and religion. Alchemy can be regarded as the precursor of the modern science of chemistry prior to the formulation of the scientific method.
The mysterious alchemical figures which Nicholas Flamel caused to be carved on his tomb.
Hildegard von Bingen Liber Divinorum Operum
Extract and symbol key from an alchemical text
The Alchemist, by Carl Spitzweg
Cornelis Pietersz. Beda: The alchemist, 1663
The alchemist by William Fettes Douglas
Distillation by Alembic
Alembic from 13th century Tabriz, Iran
Aiembic, Nürnberg, Germanisches Nationalmuseum
L'alchimista, by Pietro Longhi