Magic by F. Hälsig.
- Talmud, tract Sabbath.
- Hermann L. Strack, The Jews and Human Sacrifice, Eng. trans., pp. 140, 141 (1900).
- See pages 215 and 216 of The Mysteries of Magic, by A.E. Waite.
- See also A.S. Turberville, Mediæval Heresy and the Inquisition, pp. 111-12 (1920), ending with the words: "The voluminous records of the holy tribunal, the learned treatises of its members, are the great repositories of the true and indisputable facts concerning the abominable heresies of sorcery and witchcraft."
- Histoire de la Magie, p. 15.
- The Mysteries of Magic, p. 221.
- A.E. Waite, The Real History of the Rosicrucians, p. 293.
- Histoire de la Magie, p. 266.
- John Yarker, The Arcane Schools, p. 205.
- Drach (*De l'Harmonie