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+--- Thread: Hedesan: Plant Alchemy, Paracelsianism and Internal Signature Theory (/showthread.php?tid=903)
Hedesan: Plant Alchemy, Paracelsianism and Internal Signature Theory - Paul Ferguson - 11-09-2023
...in the Writings of Guy de La Brosse (1586-1641)
" The present article focuses on La Brosse's views of advancement of plant alchemy as the source of knowledge of plants. It discusses his adoption of the Paracelsian physician Joseph Du Chesne's (Quercetanus, 1546-1609) distinction between external and internal signature theory, opting firmly for the latter as the basis of true knowledge. The internal character, La Brosse argues, can only be revealed empirically, by fire analysis and the practice of distillation, which can also harness the occult properties of plants for human benefit."
https://www.academia.edu/108998586/Plant_Alchemy_Paracelsianism_and_Internal_Signature_Theory_in_the_Writings_of_Guy_de_La_Brosse_1586_1641_