625.1 Gerard DORN. Chymisticum artificium naturę, Theoricum et Practicum: cuius Summarium verse pagella clarius indicabit: Liber plane philosophicus, in gratiam omnium verę Philosophię naturalis studiosorum ęditus per Gerardum Dorn. 8° [Francofurti?] 1568 Ferguson Young Wolfenbuttel Nat Union Cat [Illustrations:- 1. Woodcut on title page. 67x64mm. A strange and complex flask, which has at its centre a double still-headed alembic containing the Mercury of the philosophers depicted as the hieroglyphic monad symbol. On one side of the apparatus are Sol, Venus and Mars, while the other has Saturn, Jupiter, Luna and Mercurius. There are tubes connecting different parts of the apparatus, which seems to continually circulate the distillates. Below is the text 'Totius artis chimicae tipus'. 2. p83 Woodcut. 66x61mm. Various distilling flasks. 3. p94 Woodcut. 60x67mm. Small pictures of furnaces and distillation apparatus. 4. p97 Woodcut. 62x53mm. Furnace and apparatus for descension. 5. p99 Woodcut. 55x56mm. Reverberation apparatus. 6. p101 Woodcut. 60x50mm. Triple furnace with circulatory vessels.]