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Theorem 18, Monas Hieroglyphica (1564). This theorem is one of 24 contained in the work Monas Hieroglyphica by Welsh astrologer John Dee (1527-1608). An example of western Hermeticism and written in a mystical state, it revealed esoteric secrets in astronomy, alchemy, music, mathematics, linguistics, mechanics, and optics. Theorem 18 (half shown here, see also C015/4314) is presented as a riddle, with the diagram showing symbols (including the Sun and Moon and planets) within an egg-shaped form (yolk and white). The accompanying text refers to the fable of the eagle and the scarab beetle.
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