29.To knowe Iustly the 4 quarters of the world, as est, west, north, & sowth.
[Ad cognoscendum euidenter quatuor partes mundi, scilicet, orientem, austrum, aquilonem, & occidentem.]
¶ Take the altitude of thy sonne whan the list / & note wel the quarter of the world in which the sonne is for the tyme by the Azymutz. ¶ turne thanne thin Astrolabie / & set the degree of the sonne in the Almykanteras of his altitude on thilke side þat the sonne stant / as is the manere in takyng of howres ; ¶ & ley thy label on the degree of the sonne, And rikene how many degres of the bordure ben by-twixe the lyne Meridional & the point of thy label; & note wel þat nowmbre. ¶ [folio 21b] Turne thanne a-gayn thyn Astralabie, & set the point of thy gret Rewle ther thow takest thyne Altitudes / vp-on as many degrees in his bordure fro his Meridional as was the point of thy label fro the lyne Meridional on the wombe-side. ¶ tak thanne thyn Astrolabie with bothe handes sadly & slely, & lat the sonne shyne thorow bothe holes of thy rewle; ¶ & sleyly in thilke shynynge lat thyn Astrelabie kowch adown euene vp- on a smothe grond, & thanne wol the verrey lyne Merydional of thyn