This book is likely to have been in the library of the Elizabethan mathematician, astronomer, and politician Thomas Digges (for whom see lots ***). Digges customarily inscribed his books and at least three other books with similar inscriptions are known: Jordanus Nemorarius, Arithmetica (Paris, 1496), UCL; Luys Collado, Practica manuale de arteglieria (Venice, 1586), The British Library, C.54.k.2; and J. Fernel, Monalosphaerium (Paris, 1526), from the Bute library, sold in these rooms, 3 July 1961, lot 193. However, the majority of books inscribed by Digges are in a much more formal hand with several letter forms that are entirely distinct from those found here (notably "g", "h", and the majuscules: see, for example, the illustration for lot 450 in the Bute sale). Digges also used this formal hand, albeit in somewhat modified form, to sign a letter to Lord Burghley (TNA, SP 12/90, fol. 46, dated 11 December 1572). No namesake has been identified so these inscriptions may be in the hand of an amanuensis, but further research will be required to tease out the relationship between the two forms of inscription.
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