• Detail of a decorated initial 'I'(ntencio) at the beginning of Robert Grosseteste's De sphaera., Various calendarial and computistical treatises

the foundation collections of the British Library. Decorated initial Various authors including Bede, Johannes de Sacro Bosco (index Johannes de Sacrobosco, John de Sacrobosco), Robertus Anglicus (index Iohannes Anglicus de Montepessulano; Robertus Anglicus of Montpellier), Robert Grosseteste (index Lincolniensis) England

• Detail of an astronomical diagram showing an eclipse of the moon, illustrating Robert Grosseteste's De sphaera., Various calendarial and computistical treatises

of the foundation collections of the British Library. Detail Various authors including Bede, Johannes de Sacro Bosco (index Johannes de Sacrobosco, John de Sacrobosco), Robertus Anglicus (index Iohannes Anglicus de Montepessulano; Robertus Anglicus of Montpellier), Robert Grosseteste (index Lincolniensis) England

• Detail of an astronomical diagram showing an eclipse of the sun, illustrating Robert Grosseteste's De sphaera., Various calendarial and computistical treatises

of the foundation collections of the British Library. Detail Various authors including Bede, Johannes de Sacro Bosco (index Johannes de Sacrobosco, John de Sacrobosco), Robertus Anglicus (index Iohannes Anglicus de Montepessulano; Robertus Anglicus of Montpellier), Robert Grosseteste (index Lincolniensis) England

• Text page with calendrical tables illustrating Robert Grosseteste's Computus correctorius., Various calendarial and computistical treatises

of the foundation collections of the British Library. Tables Various authors including Bede, Johannes de Sacro Bosco (index Johannes de Sacrobosco, John de Sacrobosco), Robertus Anglicus (index Iohannes Anglicus de Montepessulano; Robertus Anglicus of Montpellier), Robert Grosseteste (index Lincolniensis) England

• Historiated initial 'I'(ntentio) of a man holding an orb at the beginning of Grosseteste's Computus correctorius, astronomical diagram at the bottom of the page., Various astronomical and calendrical texts including Grosseteste's Computus correctorius (index Computus correctorius) (ff. 4-15), Sacro Bosco's Algorismus (ff. 15v-25v), Nemore's De plana sphaera (index Demonstratio de plana spera; Planispherium)(ff. 30-36v), Albumasar's De floribus astrorum (ff. 43v-67v), and a glossed Computus with calendar (ff. 68-119v)

Man holding an orb Written by different scribes Various authors including Robert Grosseteste (index Lincolniensis), Johannes de Sacro Bosco (index Johannes de Sacrobosco, Iohannes de Sacro Bosco, John de Sacrobosco), Jordanus de Nemore, Albumasar France and England (ff. 114-119v only)

• Detail of a historiated initial 'S'(pera) decorated with a cockerell head and a dragon head, containing a man holding an astrolabe, at the beginning of Jordanus de Nemore's De plana sphaera; geometrical diagram in the margin., Various astronomical and calendrical texts including Grosseteste's Computus correctorius (index Computus correctorius) (ff. 4-15), Sacro Bosco's Algorismus (ff. 15v-25v), Nemore's De plana sphaera (index Demonstratio de plana spera; Planispherium)(ff. 30-36v), Albumasar's De floribus astrorum (ff. 43v-67v), and a glossed Computus with calendar (ff. 68-119v)

the British Library. Detail Written by different scribes Various authors including Robert Grosseteste (index Lincolniensis), Johannes de Sacro Bosco (index Johannes de Sacrobosco, Iohannes de Sacro Bosco, John de Sacrobosco), Jordanus de Nemore, Albumasar France and England (ff. 114-119v only)

• Historiated initial 'S'(pera) decorated with a cockerell head and a dragon head, containing a man holding an astrolabe, at the beginning of Jordanus de Nemore's De plana sphaera; geometrical diagram in the margin., Various astronomical and calendrical texts including Grosseteste's Computus correctorius (index Computus correctorius) (ff. 4-15), Sacro Bosco's Algorismus (ff. 15v-25v), Nemore's De plana sphaera (index Demonstratio de plana spera; Planispherium)(ff. 30-36v), Albumasar's De floribus astrorum (ff. 43v-67v), and a glossed Computus with calendar (ff. 68-119v)

Library. Man with astrolabe Written by different scribes Various authors including Robert Grosseteste (index Lincolniensis), Johannes de Sacro Bosco (index Johannes de Sacrobosco, Iohannes de Sacro Bosco, John de Sacrobosco), Jordanus de Nemore, Albumasar France and England (ff. 114-119v only)

• Historiated initial 'C'(ompotus) of a man reading at the beginning of the glossed Computus with calendar., Various astronomical and calendrical texts including Grosseteste's Computus correctorius (index Computus correctorius) (ff. 4-15), Sacro Bosco's Algorismus (ff. 15v-25v), Nemore's De plana sphaera (index Demonstratio de plana spera; Planispherium)(ff. 30-36v), Albumasar's De floribus astrorum (ff. 43v-67v), and a glossed Computus with calendar (ff. 68-119v)

British Library. Man reading Written by different scribes Various authors including Robert Grosseteste (index Lincolniensis), Johannes de Sacro Bosco (index Johannes de Sacrobosco, Iohannes de Sacro Bosco, John de Sacrobosco), Jordanus de Nemore, Albumasar France and England (ff. 114-119v only)

• Detail of a historiated initial 'C'(ompotus) of a man reading at the beginning of the glossed Computus with calendar., Various astronomical and calendrical texts including Grosseteste's Computus correctorius (index Computus correctorius) (ff. 4-15), Sacro Bosco's Algorismus (ff. 15v-25v), Nemore's De plana sphaera (index Demonstratio de plana spera; Planispherium)(ff. 30-36v), Albumasar's De floribus astrorum (ff. 43v-67v), and a glossed Computus with calendar (ff. 68-119v)

the British Library. Detail Written by different scribes Various authors including Robert Grosseteste (index Lincolniensis), Johannes de Sacro Bosco (index Johannes de Sacrobosco, Iohannes de Sacro Bosco, John de Sacrobosco), Jordanus de Nemore, Albumasar France and England (ff. 114-119v only)

• Text page of Virgil's Eclogues., Avianus fables, with gloss

Text page of Virgil's Eclogues. Peter of Blois's 'Speculum iuris canonici' consists of 60 chapters, each devoted to a legal argument. Peter, who is not to be confused with his older and more famous namesake, the archdeacon of Bath

• Text page at the beginning of Persius's Satires., Avianus fables, with gloss

Text page at the beginning of Persius's Satires. Peter of Blois's 'Speculum iuris canonici' consists of 60 chapters, each devoted to a legal argument. Peter, who is not to be confused with his older and more famous namesake, the