Keywords: Basil Valentine 1600 The Third Key p 64 AQ29 (2).tif Basil Valentine Paris P Moet 1660 Basil Valentine in his writings provided twelve keys a widely reproduced sequence of alchemical operations encoded allegorically both in words and in images The images were essential to the communication and had to depict the same scene regardless of the artistry http //othmerlib chemheritage org/record b1040555~S6 Catalog Information From the copy in the Roy G Neville Historical Chemical Library http //www chemheritage org/ Chemical Heritage Foundation Downloaded with permission from the Chemical Heritage Foundation as part of the Wikipedian in Residence initiative Chemical Heritage Foundation http //www chemheritage org/ Chemical Heritage Foundation 1600 PD-old-100 PD-old-100 cc-by-3 0 Chemical Heritage Foundation Images from the Chemical Heritage Foundation Twelve Keys of Basil Valentine |