• Detail of inscription., Lectura super tertio libro Decretalium

and politician.Henry Howard (b. 1628, d. s684), 6th duke of Norfolk, presented to the Royal Society in 1667.The Royal Society, London: its ink stamp: 'Soc. Reg. Lond / ex dono HENR. HOWARD / Norfolciensis.' (f. 2).Purchased by the British Museum

• Coloured initial., Lectura super tertio libro Decretalium

and politician.Henry Howard (b. 1628, d. s684), 6th duke of Norfolk, presented to the Royal Society in 1667.The Royal Society, London: its ink stamp: 'Soc. Reg. Lond / ex dono HENR. HOWARD / Norfolciensis.' (f. 2).Purchased by the British Museum

• Detail of coloured initial., Lectura super tertio libro Decretalium

and politician.Henry Howard (b. 1628, d. s684), 6th duke of Norfolk, presented to the Royal Society in 1667.The Royal Society, London: its ink stamp: 'Soc. Reg. Lond / ex dono HENR. HOWARD / Norfolciensis.' (f. 2).Purchased by the British Museum

• Headpiece and coloured initial., Commentary on Claudius Ptolemaeus's Harmonica

~Bibliotheca Maphaei Pinellii Veneti~, 6 vols (Venice: Typis Palesii, 1787), III, no. 7950 (‘Porphyrii Commentarius in Harmonica Ptolemaei, Graece’): his London sale, 2 March 1789, lot 12856, bought by Edwards for £1.James Edwards (b. 1756, d. 1816), book collector and

• Colophon at the end of the text, stating that it was copied by Peter of Hungary in 1426., Lectura super tertio libro Decretalium

and politician.Henry Howard (b. 1628, d. s684), 6th duke of Norfolk, presented to the Royal Society in 1667.The Royal Society, London: its ink stamp: 'Soc. Reg. Lond / ex dono HENR. HOWARD / Norfolciensis.' (f. 2).Purchased by the British Museum

• Detail of decorated initial., De consolatione philosophiae, imperfect

and politician.Henry Howard (b. 1628, d. 1684), 6th duke of Norfolk, presented to the Royal Society in 1667.The Royal Society, London: its ink stamp: 'Soc. Reg. Lond / ex dono HENR. HOWARD / Norfolciensis.' (f. 1); its bookplate, inscribed in

• Table and decorated initial., Miscellaneous scientific treatises

'de Liber sancti Augustini Cante' (f. 1v); see also James 1963 no. 1166.Johannes de London, monk of St Augustine's Abbey, c.1364: inscribed 'Liber Johans de London' and '1364' (f. 1v).Index added, 14th-15th centuries (f. 242).John Dee (b. 1527, d. 1609),

• Table., Miscellaneous scientific treatises

'de Liber sancti Augustini Cante' (f. 1v); see also James 1963 no. 1166.Johannes de London, monk of St Augustine's Abbey, c.1364: inscribed 'Liber Johans de London' and '1364' (f. 1v).Index added, 14th-15th centuries (f. 242).John Dee (b. 1527, d. 1609),

• Detail of table., Miscellaneous scientific treatises

'de Liber sancti Augustini Cante' (f. 1v); see also James 1963 no. 1166.Johannes de London, monk of St Augustine's Abbey, c.1364: inscribed 'Liber Johans de London' and '1364' (f. 1v).Index added, 14th-15th centuries (f. 242).John Dee (b. 1527, d. 1609),

• Table., Miscellaneous scientific treatises

'de Liber sancti Augustini Cante' (f. 1v); see also James 1963 no. 1166.Johannes de London, monk of St Augustine's Abbey, c.1364: inscribed 'Liber Johans de London' and '1364' (f. 1v).Index added, 14th-15th centuries (f. 242).John Dee (b. 1527, d. 1609),

• Flourished initial 'I'(uri), in Bartolus de Saxoferrato's In primam partem digesti veteris., In primam partem digesti veteris

Royal Society, London (its ink stamp: 'Soc. Reg. Lond / ex dono HENR. HOWARD / Norfolciensis.', f. 3; its book-plate with the pencil inscription: ‘XIV.3.7’, inside upper cover).Purchased by the British Museum from the Royal Society of London together with

• Illuminated initial 'I'(n), and partial foliate border, at the beginning of Petrus Baldus de Ubaldis's In usus feudorum., Lectura feudorum (ff. 3-93); Conclusiones feudorum (f. 93); Commentarius ad pacem Constantie (ff. 93-102); Pax Constantie (ff. 102v-104v); Opus statutorum (ff. 105-250); Thesaurus civilis sapientiae (f. 251)

Royal Society, London (its ink stamp: 'Soc. Reg. Lond / ex dono HENR. HOWARD / Norfolciensis.', f. 3; its book-plate with the pencil inscription: ‘XIV.3.12’, inside upper cover).Purchased by the British Museum from the Royal Society of London together with

• Flourished initials, decorated catchword, and scribal colophon., In primam partem digesti veteris

Royal Society, London (its ink stamp: 'Soc. Reg. Lond / ex dono HENR. HOWARD / Norfolciensis.', f. 3; its book-plate with the pencil inscription: ‘XIV.3.7’, inside upper cover).Purchased by the British Museum from the Royal Society of London together with

• Detail of illuminated initial., Lectura feudorum (ff. 3-93); Conclusiones feudorum (f. 93); Commentarius ad pacem Constantie (ff. 93-102); Pax Constantie (ff. 102v-104v); Opus statutorum (ff. 105-250); Thesaurus civilis sapientiae (f. 251)

Royal Society, London (its ink stamp: 'Soc. Reg. Lond / ex dono HENR. HOWARD / Norfolciensis.', f. 3; its book-plate with the pencil inscription: ‘XIV.3.12’, inside upper cover).Purchased by the British Museum from the Royal Society of London together with

• Detail of marginal arms, with the letters 'G' to the left and 'AR' to the right., Lectura feudorum (ff. 3-93); Conclusiones feudorum (f. 93); Commentarius ad pacem Constantie (ff. 93-102); Pax Constantie (ff. 102v-104v); Opus statutorum (ff. 105-250); Thesaurus civilis sapientiae (f. 251)

Royal Society, London (its ink stamp: 'Soc. Reg. Lond / ex dono HENR. HOWARD / Norfolciensis.', f. 3; its book-plate with the pencil inscription: ‘XIV.3.12’, inside upper cover).Purchased by the British Museum from the Royal Society of London together with

• Border of floral motifs and bezants with a medallion inscribed 'L.X.P.M.', the initials of Leo X, surmounted by a seated, winged putto, measuring 430 x 45 mm., Cuttings from Missals of Pope Leo X

include Add. 21412, ff. 20-44; Cambridge, University Library, Ms Add. 4165 (15); Geneva, Bibliothèque de Genève, Comites Latentes, MS. 109; London, Sotheby's, 15 June 1959, lot 120, 21 June 1988, lots 36-37, 21 and 22 June 1993, lots 46 and

• Border of floral motifs and bezants with a winged putto holding a tablet inscribed 'L.X.P.M.', the initials of Leo X, and Medici device of a diamond ring with three feathers and motto 'Semper'. The present border is composed of three cuttings, measuring 205 x 45 mm, 135 x 45 mm and 185 x 45 mm., Cuttings from Missals of Pope Leo X

include Add. 21412, ff. 20-44; Cambridge, University Library, Ms Add. 4165 (15); Geneva, Bibliothèque de Genève, Comites Latentes, MS. 109; London, Sotheby's, 15 June 1959, lot 120, 21 June 1988, lots 36-37, 21 and 22 June 1993, lots 46 and

• Border of floral motifs and bezants with a kneeling winged putto and the Medici device of a diamond ring with three feathers and motto 'Semper'. The present border is composed of two cuttings, the first measuring 200 x 45 mm and the second 240 x 45 mm., Cuttings from Missals of Pope Leo X

include Add. 21412, ff. 20-44; Cambridge, University Library, Ms Add. 4165 (15); Geneva, Bibliothèque de Genève, Comites Latentes, MS. 109; London, Sotheby's, 15 June 1959, lot 120, 21 June 1988, lots 36-37, 21 and 22 June 1993, lots 46 and

• Border of floral motifs, bezants and a zoomorphic lion's head with a winged putto standing on a medallion inscribed 'L.X.P.M.', measuring 455 x 45 mm., Cuttings from Missals of Pope Leo X

include Add. 21412, ff. 20-44; Cambridge, University Library, Ms Add. 4165 (15); Geneva, Bibliothèque de Genève, Comites Latentes, MS. 109; London, Sotheby's, 15 June 1959, lot 120, 21 June 1988, lots 36-37, 21 and 22 June 1993, lots 46 and

• Border of floral motifs and bezants with the Medici devices of a diamond ring with three feathers and motto 'Semper' flanked by two winged putti and a yoke with a scroll inscribed 'Suave surmounted by an initial 'N' within a medallion, measuring 435 x 55 mm. Gold filigree ornament has been applied vertically on the left of the border., Cuttings from Missals of Pope Leo X

include Add. 21412, ff. 20-44; Cambridge, University Library, Ms Add. 4165 (15); Geneva, Bibliothèque de Genève, Comites Latentes, MS. 109; London, Sotheby's, 15 June 1959, lot 120, 21 June 1988, lots 36-37, 21 and 22 June 1993, lots 46 and