Johann Joachim Becher

Johann Becher
Born6 May 1635
DiedOctober 1682 (1682-11) (aged 47)
Known forPhlogiston theory
Scientific career
FieldsChemistry, alchemy

Johann Joachim Becher (German: [ˈbɛçɐ]; 6 May 1635 – October 1682) was a German physician, alchemist, precursor of chemistry, scholar, polymath and adventurer, best known for his development of the phlogiston theory of combustion, and his advancement of Austrian cameralism.

Page of Theatrum Chemicum Volume VI (1659), showing the first page of 'Discursus Solini Saltztal Regiomontani De potentissima philosophorum medicina universali, lapis philosophorum trismegistus dicta.'