1913. Contains the cipher keys to the following: De Augmentis Scientiarium; L. Digges Poem; Dedicatory Epistle; Peele's the Knight of the Golden Shield; Sylva Sylvarum; New Atlantis; Second Folio. Also included is a description of the alphabets found in the above works, as well as headings in Shakespeare's plays. A section is dedicated to deciphered messages.