Alchemy. Mercury and sulfur personified. Detail, from the sixteenth century.
<a rel="nofollow" class="external text" href="https://www.nature.com/articles/d41586-020-01223-w">www.nature.com ARTS REVIEW 29 April 2020 Jennifer Rampling: Elixirs for times of plague and bullion shortage. Spectacular alchemical scrolls record ideas of flux in times of massive upheaval - medical, social, economic and political</a>