• Text page with diagram of astrolabe., De institutione musica; a miscellany of works on geometry, astronomy and mathematics

with other 311 manuscripts from Theyer's library.Presented to the British Museum by George II in 1757 as part of the Old Royal Library. Text page with diagram Boethius; Hermannus Contractus (index Hermann of Reichenau, Hermannus Augiensis), Gerbert of Aurillac (index

• Text page with diagram., De institutione musica; a miscellany of works on geometry, astronomy and mathematics

with other 311 manuscripts from Theyer's library.Presented to the British Museum by George II in 1757 as part of the Old Royal Library. Text page Boethius; Hermannus Contractus (index Hermann of Reichenau, Hermannus Augiensis), Gerbert of Aurillac (index Sylvester II)

• Text page with diagram of astrolabe., De institutione musica; a miscellany of works on geometry, astronomy and mathematics

with other 311 manuscripts from Theyer's library.Presented to the British Museum by George II in 1757 as part of the Old Royal Library. Text page Boethius; Hermannus Contractus (index Hermann of Reichenau, Hermannus Augiensis), Gerbert of Aurillac (index Sylvester II)

• Text page with geometrical diagrams., De institutione musica; a miscellany of works on geometry, astronomy and mathematics

with other 311 manuscripts from Theyer's library.Presented to the British Museum by George II in 1757 as part of the Old Royal Library. Text page Boethius; Hermannus Contractus (index Hermann of Reichenau, Hermannus Augiensis), Gerbert of Aurillac (index Sylvester II)

• Text page with mathematical diagrams., De institutione musica; a miscellany of works on geometry, astronomy and mathematics

with other 311 manuscripts from Theyer's library.Presented to the British Museum by George II in 1757 as part of the Old Royal Library. Text page Boethius; Hermannus Contractus (index Hermann of Reichenau, Hermannus Augiensis), Gerbert of Aurillac (index Sylvester II)

• Text page with diagrams of the astrolabe., De institutione musica; a miscellany of works on geometry, astronomy and mathematics

with other 311 manuscripts from Theyer's library.Presented to the British Museum by George II in 1757 as part of the Old Royal Library. Text page Boethius; Hermannus Contractus (index Hermann of Reichenau, Hermannus Augiensis), Gerbert of Aurillac (index Sylvester II)

• Text page with diagram of astrolabe containing a human head., De institutione musica; a miscellany of works on geometry, astronomy and mathematics

with other 311 manuscripts from Theyer's library.Presented to the British Museum by George II in 1757 as part of the Old Royal Library. Text page Boethius; Hermannus Contractus (index Hermann of Reichenau, Hermannus Augiensis), Gerbert of Aurillac (index Sylvester II)

• Text page with diagrams of astrolabe., De institutione musica; a miscellany of works on geometry, astronomy and mathematics

with other 311 manuscripts from Theyer's library.Presented to the British Museum by George II in 1757 as part of the Old Royal Library. Text page Boethius; Hermannus Contractus (index Hermann of Reichenau, Hermannus Augiensis), Gerbert of Aurillac (index Sylvester II)

• Text page., De institutione musica; a miscellany of works on geometry, astronomy and mathematics

with other 311 manuscripts from Theyer's library.Presented to the British Museum by George II in 1757 as part of the Old Royal Library. Text page Boethius; Hermannus Contractus (index Hermann of Reichenau, Hermannus Augiensis), Gerbert of Aurillac (index Sylvester II)

• Inscription of a title reading, 'Expositio su[per] Reg[u]lam beati Benedicti. nova' with a reference sign repeated at the beginning of the text (f. 3), a shelfmark, 'D. III. g. XII, an ownership inscription of John Lumley, and an offset of a miniature from leaf 2v., Expositio in Regulam S. Benedicti

Royal Library: in the catalogue of 1666, Royal Appendix 71, f. 4v.Presented to the British Museum by George II in 1757 as part of the Old Royal Library. Inscription Smaragdus of St Mihiel Canterbury England, S. E. (Canterbury, Christ Church)