The Cryptomenytics and Cryptography of Gustavus Selenus in Nine Books.  Wherein is also contained a most clear Elucidation of the Steganographia, a Book at one time composed, in Magic and Enigmatic form, by Johannes Trithemius, Abbot of Spanheim and Würzburg, a Man of Wonderful Parts.  There being throughout introduced Devices by the Author and of Others, which merit your Attention.

CI) I)  CXXIIII.