The mineral and metallic world has been studied, investigated, and experimented on by innumerable hermetic philosophers in recent years, but its historical record dates back to the time of Geber or Basilio Valentin, several centuries ago, who advocated that one had to work exclusively with minerals or metals to extract powerful medicines and the Philosopher's Stone itself. This experimental work, the result of many years of arduous study and laboratory experimentation, leads us by the hand to discover the operations of many past and modern alchemists, in pursuit of the Philosopher's Stone, operations that they took for granted but that the experience - and current science - proves fraudulent or misguided. More information: Rhoend.com
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