Alchemical apparatus, 1657.
© Science Museum / Science & Society Picture Library
Woodcut of a diagram showing the principle pieces of apparatus used in alchemy. It includes the Matrass, or Florence flask (A, B); various alembics (D, E, G) and many other vessels and tools used for a wide range of processes. Illustration from 'Le Vray et Methodique Cours de la Physique Resolutive Vulgairement dite Chymie' ('The True and Methodical Course in Resolutive Physick, Commonly called Chemistry'), by Annibal Barlet, published in Paris in 1657. Although the book contains a great deal of alchemical jargon, it is for the most part good practical pharmaceutical chemistry. Barlet gave regular chemical courses in Paris, attended by the diarist John Evelyn (1620-1706) amongst others.