Chapter XI

On Oblique Transposition of
Consonants representing Vowels,
And the first two Modes thereof.

So much for Oblique Transposition of Radical Letters.  We come now to the second general class, which, as I have said, is of consonants only.  For in this case the vowels are transfused into Consonants, and, along with the vowels, the consonants are also in turn transfused into a smaller number of consonants.  The process may here take place in a number of ways.  I will make in this case, as before, three processes.  The first process and Mode may be called Simple; the second is Composite; the third has connected with it a Key.  The Simple Mode is that wherein, for example, the vowels are transfused into five less  common letters, as are k w x y z; the other fourteen letters, b c d f g h l m n p q r s t remaining as they are, to be written wherever they occur.  This Mode, however, is extremely simple, and obvious at first glance to the merest novice.  We come next, therefore, to the Figurative mode, wherein there is not only Transfusion of Vowels, but also Transposition proper of the other consonants, on with another.  Of this class I will append two Modes from de Vigenere.  The first Mode, which is found described, according to the arrangement of the following table, in the aforementioned Traite des Chiffres, p. 202 b, is performed in such wise that the Power of the five vowels is transfused into five consonants, the vowels themselves remaining unemployed, while the other consonants are transposed as here shown:

Let the example be Omnium rerum vicissitude.  This is concealed thus: Xstqcs zlzcs oqgq&& qbghx.  If this Mode is joined with the device introduced near the end of Chapter Fourteen of this Book, whereby we write by means of vowels alone, which are in this chapter omitted, it will, as will there appear, be much more elegant, more secret, and far more difficult of solution.  The second Mode, which is accomplished by means of sixteen consonants, and has a number of clever ins and outs,  is likewise presented by de Vigenere, in the Traicte, p.195 b.  I will first give the following table: