Manuscripts
This overview is based on Charles W. Jones, ‘The ‘lost’ Sirmond manuscripts of Bede’s ‘computus’’, The English Historical Review 52 (1937): 213–219 and Faith Wallis, Bede: The reckoning of time (1999): lxxii–lxxix.
f. 3v–f. 61v
MS heading: ‘Incipit prefacio Bedae presbyteri de natura rerum et ratione’
f. 61v
This text awaits identification in a dedicated catalogue entry, or the entry exists but no link has been made as yet.
A list of Greek numbers.

Material from Book I

The exemplar for these items (ff. 62r-79r and possibly, the poem of 79r-80r) is thought to have been produced in Ireland sometime before 718.

A

f. 62r–f. 62v
MS heading: ‘De numero igitur - De victorio et dionisio. De boetio. De calculo’Prologue and over 50 capitula.
f. 62v–f. 64v
MS heading: ‘Incipiunt sententiae Sci. Agustini et Isidori in laude compoti’Incipit: ‘Augustinus dixit de quattuor’
f. 64v–f. 73v
MS heading: ‘De .xiiii. diuisionibus temporum’

B

f. 74r–f. 76r
MS heading: ‘Incipit de bissexto’Incipit: ‘De bissexto primum’
f. 76r–f. 78r
MS heading: ‘Nunc de saltu lunae perspiciendum est quomodo crescit per xviiii annos’Incipit: ‘De saltu lunae pauca dicamus’
f. 78r–f. 78v
MS heading: ‘Argumentum de saltu lunae monstrando’Incipit: ‘Si scire volueris quomodo dies lunari’
f. 78v
MS heading: ‘Argumentum de materia bissexti id est de quadrante’Incipit: ‘Si ergo nosse vis’
f. 78v–f. 79r
This text awaits identification in a dedicated catalogue entry, or the entry exists but no link has been made as yet.
MS heading: ‘Si nosse desideras augmentum lunare’Another argumentum.

C

f. 79r–f. 80r
Incipit: ‘Annus solis continetur’Computistical poem.

Bede

f. 80r
MS heading: ‘De etate lunae monstranda per tria alfabeta argunentum’Ch. 23.
f. 80r–f. 80v
MS heading: ‘De lunae cursu per xii signa et per litteras demonstranda argumentum’Incipit: ‘Si quis vero’Ch. 19.