Cryptomenysis Patefacta by John Falconer is only the second text written in English on the subject of cryptology. We will examine what types of ciphers Falconer addressed, and pay particular attention to some of the math he used. We will also look at what can or can’t be said about John Falconer himself.


Secret Message Secret Information Cipher Text Letter Group Marriage Date 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. Falconer, J. (1685). Cryptomenysis patefacta; or, the art of secret information disclosed without a key. Containing, plain and demonstrative rules, for decyphering. London: Daniel Brown. Available at:
  2. Falconer, T. (1860). Baptismal records of members of the Falconer family in the 17th century. London: Reynell and Weight. Available at: Scholar
  3. Falconer, T. (1866). Bibliography of the writings of the Falconer family, with biographical notices. Privately Printed, London, availability is unknown.Google Scholar
  4. Falconer, T. (1870). The family of Dalmahoy of Dalmahoy, Ratho, county of Edinburgh. London: Printed by C.W. Reynell. Available at Scholar
  5. Gazette. (1685). London gazette. Available at:
  6. Good, J. M., Gregory, O., & Bosworth, N. (Eds.). (1819). Pantologia: A new cabinet cyclopaedia, comprehending a complete series of essays, treatises, and systems, alphabetically arranged… (Vol. 3). London: Printed for J. Walker. Available at: Scholar
  7. Kahn, D. (1996). The codebreakers: The story of secret writing. New York: Scribner.Google Scholar
  8. Lart, C. E. (1910). Parochial register of saint germain-en-Laye: Jacobite extracts of births, marriages, and deaths (Vols. I & II). London: St. Catherine Press. Available at: Scholar
  9. Longman, Hurst, Rees, Orme, & Brown (Eds.). (1825). The annual biography and obituary for the ear 1825 (Vol. 9). London: A&R Spottiswoode. Available at:
  10. Lovecraft, H. (2011). H. P. Lovecraft fiction collection. CreateSpace Independent Publishing. Available at:
  11. Pickering, W. (Ed.). (1839). The gentleman’s magazine, early English newspapers (Vols. 165–166). London: F. Jeffries. Available at: Scholar
  12. Poll Taxes. (2014). Index to Edinburgh poll tax records. All parishes, 1694–1699.
  13. Schott, G. (1657). Magia universalis natura et artis. H. Pigrin. Available at:
  14. Schott, G. (1665). Schola steganographica. J. Hertz. Available at: under author C. Schott.
  15. Smith, W. (1745). A natural history of nevis, and the rest of the English Leeward Charibee Islands in America. With many other observations on nature and art; particularly, an introduction to the art of decyphering. 18th Century, J. Bentham, sold by W. Thurlbourn; S. Birt, C. Bathurst, J. Beecroft, London. Available at: Scholar
  16. Stephen, L., & Lee, S. (Eds.). (1889). The dictionary of national biography. In The dictionary of national biography (Vol. 18). New York: Macmillan. Available at: Scholar
  17. Thicknesse, P. (1772). A treatise on the art of decyphering, and of writing in cypher: With an harmonic alphabet. London: W. Brown. Available at: Scholar
  18. Tomokiyo, S. (2014). Notes on John Falconer and cryptomenysis patefacta.
  19. Wilkins, J. (1694). Mercury, or, the secret and swift messenger: Showing, how a man may with privacy and speed communicate his thoughts to a friend at any distance. London: Richard Baldwin. Available at:

Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.Western Connecticut State UniversityDanburyUSA

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