The Triangular Book of St. Germain Is a French manuscript written in code. When deciphered, it gives instructions on how to use magic to locate treasure and prolong your life, which requires a special amulet. The shape is thought to ensure the spirits called will be honest and dutiful. From Manly P. Hall’s collection of Alchemical Manuscripts, Box 34 MS. 209, 1750.
A chart of characters used in Geomancy, a divination method that uses markings on the ground or tossing handfuls of earth, sand or rocks. These characters are identified in the arrangement and charts help interpret the meaning. From The Book of the Magi, Francis Barrett, 1896. Source: Wellcome Library
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