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Musaeum Hermeticum Fire . Matthaeus Merian Figure from Lambsprinck's De Lapide Philosophico On the Philosopher's Stone as published in the Musaeum hermeticum reformatum et amplificatum Francofurti Apud Hermannum Sande In Latin The caption on the figure reads Salamandra vivit in igne Ignisque hanc mutavit in optimum colorem