Twelve Keys of Basil Valentine The Impure King

From Alchemy to Chemistry, Dover Publications, Inc., New York, 1995, pp. 32-35. 

De Rola, The Golden Game—Alchemical Engravings of the Seventeenth Century, Thames and Hudson Ltd., London, 1988, pp. 120-126. 

McLean, The Alchemical Mandala, Phanes Press, Grand Rapids, MI, 1989. 

Personal communication from Professor Laura Duhan Kaplan to the author. 

THE TWELVE KEYS OF BASIL VALENTINE THE IMPURE KING 

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