Mercury. Extracting mercury from ore by placing ore covered by sand and ashes in an earthenware pot on stand with a fire underneath. The mercury was retrieved from the bottom of the pot after cooling. From De la pirotechnia by Vannoccio Biringuccio (Venice,1540) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / UIG / Universal History Archive |
Taille de l’image : | 4150 px × 2105 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |