A copy of "Æsopiphrygis vita et fabellæ cum latina interpretatione" exists, date 1517. The book is annotated by Bacon. On one side is the Greek text and on the opposite page the Latin translation. On pages 102 and 103 are two initial letters printed from blocks of the letter A. These are coloured so that the one on the left hand side is a light A, and that on the opposite page a dark A. There are other designs which are used apparently as part of a scheme. The identical block (Figure X.) which was used at the top of the title page of "Venus and Adonis" (1593) and "Lucrece" (1594) did service on the title page of the Genealogies in the quarto edition of the Authorised Version of the Bible, 1612. This design was, so far as can be traced, only used twice in the intervening nineteen years--on "An Apologie of the Earl of Essex to Master Anthony Bacon," penned by himself in 1598, and printed by Richard Bradocke in 1603, and in 1607, on the "World of Wonders," printed by Richard Field. It was of this book that Caldecott, the bibliophile and Shakespearean scholar, wrote: "The phraseology of Shakespeare is better illustrated in this work than in any other book existing." The design which is found on the title page of the "Sonnets of Shakespeare," 1609, is found also in the first edition of Napier's "Mirifici Logarithmorum," 1611, but printed from a different block. The design with archers shooting at the base of the central figure is to be found in a large number of the folio editions of the period. Amongst these are the Authorised Version of the Bible, 1611, the "Novum Organum," 1620, and the 1623 edition of Shakespeare's works. There are other designs which are usually found accompanying the light A and dark A and the other devices before referred to. These designs were first brought into use from 1576 and practically cease to appear about 1626. Afterwards they are seldom seen except in books bearing Bacon's name, and eventually they lapse. The last use of an A A device is over the life of the author in the second volume of an edition of Bacon's Essays edited by Dr. William Willymott, published by Henry Parson in 1720. After an interval of about 60 years a new design is made, which is not one of those employed by Bacon. By means of these devices a certain number of books may be identified as forming a class by themselves.