Chaucer's Works, Volume 3 — The House of Fame; The Legend of Good Women; The Treatise on the Astrolabe; The Sources of the Canterbury TalesChaucer, Geoffrey
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Chaucer's Works, Volume 3 — The House of Fame; The Legend of Good Women; The Treatise on the Astrolabe; The Sources of the Canterbury Tales
Chaucer, Geoffrey
English poetry -- Middle English, 1100-1500
Know the quantitee of thy crepusculis, as I have taught in the
chapitre bi-forn, and adde hem to the arch of thy day artificial;
and tak ther the space of alle the hole day vulgar, un-to verrey
night. The same manere maystow worke, to knowe the quantitee
of the vulgar night. And for the more declaracioun, lo here the 5
figure.
10. TO KNOWE THE QUANTITE OF HOURES IN-EQUALES BY DAY.
[AD COGNOSCENDUM HORAS INEQUALES IN DIE.]
Understond wel, that thise houres in-equales ben cleped houres
of planetes, and understond wel that som-tyme ben they lengere
by day than by night, and som-tyme the contrarie. But understond
wel, that evermo, generaly, the hour in-equal of the day
with the houre in-equal of the night contenen 30 degrees of the 5
bordure, whiche bordure is ever-mo answering to the degrees of
the equinoxial; wher-for departe the arch of the day artificial in
12, and tak ther the quantitee of the houre in-equal by day.
And yif thow abate the quantitee of the houre in-equal by daye
out of 30, than shal the remenant that leveth performe the houre 10
inequal by night. And for the more declaracioun, lo here the
figure.
11. TO KNOWE THE QUANTITE OF HOURES EQUALES.
[AD COGNOSCENDUM QUANTITATEM HORARUM INEQUALIUM.]
The quantitee of houres equales, that is to seyn, the houres of
the clokke, ben departed by 15 degrees al-redy in the bordure
of thyn Astrolabie, as wel by night as by day, generaly for evere.
What nedeth more declaracioun? Wher-for, whan thee list to
know how manye houres of the clokke ben passed, or any part of 5
any of thise houres that ben passed, or elles how many houres or
partie of houres ben to come, fro swich a tyme to swich a tyme,
by day or by nighte, knowe the degree of thy sonne, and ley thy
label on it; turne thy riet aboute ioyntly with thy label, and with
the point of it rekne in the bordure fro the sonne aryse un-to 10
the same place ther thou desirest, by day as by nighte. This
conclusioun wol I declare in the laste chapitre of the 4 partie of
this tretis so openly, that ther shal lakke no worde that nedeth to
the declaracioun. And for the more declaracioun, lo here the
figure. 15
12. SPECIAL DECLARACIOUN OF THE HOURES OF PLANETES.
[SPECIALIS DECLARACIO DE HORIS PLANETARUM.]
Public-domain text, read in full here on John Shaqi.
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