One of the last Arabic alchemical treatises -- and the most comprehensive -- was that by the Egyptian alchemist `Izz al-Din Aydamir al-Jildaki, who died in 1342 (743 H). His treatise The Proof Regarding Secrets of the Science of the Balance (Kitab al-Burhan fi asrar `ilm al-mizan) was concerned to a large extent with the classification of plants, animals, and minerals, and with the concept of `balance'. The alchemist attempted to assess the `balance' of any given substance by a system employing numerology, the 28 letters of the Arabic alphabet, and the numerical value of the name of the substance in order to determine the proportional structure of the substance's attributes -- that is, heat, dryness, coldness, and fluidity. Al-Jildaki's treatise represents the mystical and allegorical trend in alchemy, but it is also evident that the author had much experience with practical chemical operations and substances.
Makhzan Al Asrar Pdf 15
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