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Alchemy: "A three-headed monster in an alchemical flask, representing the composition of the alchemical philosopher's stone: Salt, Sulphur, and Mercury." Watercolor painting from Salomon Trismosin's "Splendor solis." An Alchemy artwork.
Boethius, De musica, f.43v, (211 x 144 mm), 12th century -This is a manuscript about the theory of music. It was copied probably in England at Christ Church, Canterbury, in the second quarter of the twelfth century. Its main focus is the mathematical basis of music - Alexander Turnbull Library, MSR-05., via Flickr.
Amulet, 11th century; Fatimid, Egypt. Gift of Nelly, Violet, and Elie Abemayor, in memory of Michel Abemayor, 1978 (1978.546.32) Centuries before block printing was introduced in Europe, the technique was used in the Islamic world to produce miniature texts consisting of prayers, incantations, and Qur’anic verses that were kept in amulet boxes. The text on this amulet is in the angular kufic script. The six-pointed star, a familiar symbol in Islamic art, is usually called "Solomon's seal."