Author: Trithemius, Johannes.
Title: THE MAGICAL ALPHABETS as Collected by Trithemius, Abbot of Sponheim; Being Excerpts from his Polygraphia.
Description: New York: Magus MS Series, 1973. Loose sheets laid in folder; FINE. With a biographical note by the editor. Several pages of cryptographic alphabets used in medieval magic, each related to its English equivalents. 19 pages. An odd work that I purchased from a table in the basement at the Strand.

Keywords: magic alchemy secret systems cryptography Trithemius