<!doctype html public «-//w3c//dtd html 4.0 transitional//en»> http-equiv=content-type> Examining the recourse to alchemical experimental practices by the early 20th century avant-garde movement in Europe opens up a surprising perspective on the relationship between art and science in the early modern and modern eras. This volume explores the Theatrum alchemicum as a natural philosophical labyrinth, a hybrid melting pot of mythical knowledge and rational understanding, and as a skillful practice of philosophizing with materials.