Signatures: pi² A-3A⁴ 3B²(-3B2)

The hidden lair of an alchemist rediscovered in a 2002 flood.

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Illustration about Illustration of an atom with electrons in orbits. Illustration of sphere, formula, orbit - 15090020

Johan Conrad Barchusen, Elementa Chemiae, alchimia, Barchusen, iconografia alchemica

Uit mijn boek “Alchemistische noten”