Full text: de Sacrobosco, Johannes: Sphaera Ioannis de Sacrobosco

COMPVTVS Dominica proxima ſequente, celebratur feſtum. Hoc
tamen prænotato, quòd ad habendam Septuageſi-
mam vel Quadrageſimam {in} anno biſextili, Claui
addenda est vnit{as}. Aliter enim cont{in}geret Se-
ptuageſimam & Quadrageſimam per Clauem pri{us}
celebrari quàm deberet. 7. dieb{us}. Per hos autem ver
ſ{us} ſpecialiter habetur term{in}{us} Septuageſimæ, &
per conſequens cætera festa mobilia.

A festo Stellæ numerando perfice lunæ

Quadrag{in}ta dies, & Septuageſima fiet.

Sı ſit biſſext{us}, lux additur vna dieb{us}.

Si cadat {in} lucem Dom{in}i, ſuppone ſequentem.

A pr{in}cipio lunationis illi{us}, {in} qua est Epipha-
nia Dom{in}i, quæ propriè Feſtum Stellæ dicitur, ſiue
illa fuerit {in} Ianuario, ſiue {in} Decembri, computen-
tur quadrag{in}ta dies deſcendendo, & quadrageſim{us}
Dies erit term{in}{us} Septuageſimæ, & {in} die Domi-
nica proxima erit ſeptuageſima. Si ſit biſext{us}, ad-
datur dies vn{us}, ſicut {in} verſib{us} {in}nuitur.

74. Ad habendum autem terminum Paſchæ,
ſciantur iſti verſus.

Eſſe grauem nobis bello carnem caueam{us}.

Bellum ſæpe gerens etenim puto deijcit hoſtem,

Mox animæ lucrum {in}uenies cum relligioſis.

In his verſib{us} ſunt. 19. dictiones, deſeruientes. 19. annis Cycli decennouennalis, prima primo, & ſic de-

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