obeyen everích of hem til other. And for more declaracioun, lo here the figure. 30 29. TO KNOWE IUSTLY THE FOURE QUARTERS OF THE WORLD, AS EST, WEST, NORTH, AND SOWTH. [AD COGNOSCENDUM EVIDENTER QUATUOR PARTES MUNDI, SCILICET, ORIENTEM, AUSTRUM, AQUILONEM, ET OCCIDENTEM.] Take the altitude of thy sonne whan thee list, and note wel the quarter of the world in which the sonne is for the tyme by the azimutz. Turne thanne thyn Astrolabie, and set the degree of the sonne in the almikanteras of his altitude, on thilke side that the sonne stant, as is the manere in taking of houres; and ley thy 5 label on the degree of the sonne, and rikene how many degrees of the bordure ben by-twixe the lyne meridional and the point of thy label; and note wel that noumbre. Turne thanne a-gayn thyn Astrolabie, and set the point of thy gret rewle, ther thou takest thyne altitudes, up-on as many degrees in his bordure fro his 10 meridional as was the point of thy label fro the lyne meridional on the wombe-syde. Tak thanne thyn Astrolabie with bothe handes sadly and slely, and lat the sonne shyne thorow bothe holes of thy rewle; and sleyly, in thilke shyninge, lat thyn Astrolabie couch adoun evene up-on a smothe grond, and thanne wol the verrey 15 lyne meridional of thyn Astrolabie lye evene south, and the est lyne wole lye est, and the west lyne west, and north lyne north, so that thou werke softly and avisely in the couching; and thus hastow the 4 quarters of the firmament. And for the more declaracioun, lo here the figure. 20 30. TO KNOWE THE ALTITUDE OF PLANETES FRO THE WEY OF THE SONNE, WHETHER SO THEY BE NORTH OR SOUTH FRO THE FORSEIDE WEY. [AD COGNOSCENDUM ALTITUDINEM PLANETARUM A CURSU SOLIS, UTRUM SINT IN PARTE AUSTRALI VEL BOREALI A CURSU SUPRA DICTO.] Lok whan that a planete is in the lyne meridional, yif that hir altitude be of the same heyghte that is the degree of the sonne for that day, and than is the planete in the verrey wey of the sonne, and hath no latitude. And yif the altitude of the planete be heyere than the degree of the sonne, than is the planete north fro 5 the wey of the sonne swich a quantite of latitude as sheweth by thyn almikanteras. And yif the altitude of the planete be lasse than the degree of the sonne, thanne is the planete south fro the wey of the sonne swich a quantite of latitude as sheweth by thyn almikanteras. This is to seyn, fro the wey wher-as the sonne 10 wente thilke day, but nat from the wey of the sonne in every place of the zodiak. And for the more declaracioun, lo here the figure. 31. TO KNOWE THE SENITH OF THE ARYSING OF THE SONNE, THIS IS TO SEYN, THE PARTIE OF THE ORISONTE IN WHICH THAT THE SONNE ARYSETH.