M. Blundevile his exercises containing sixe treatises, the titles wherof are set down in the next printed page: which treatises are verie necessarie to be read and learned of all yoong gentlemen that haue not bene exercised in such disciplines, and yet are desirous to haue knowledge as well in cosmographie, astronomie, and geographie, as also in the arte of navigation ... To the furtherance of which arte of navigation, the said M. Blundevile speciallie wrote the said treatises and of meere good will doth dedicate the same to all the young gentlemen of this realme.

8 To finde out the oblique descention of the Sunne at any time.

FIrst finde out the right ascention of the sunne by the third pro∣position, the same shall be the right descention thereof, then finde the ascentionall difference by the sixt proposition, and if the sunne be in any of the Northern signes, adde the ascentional diffe∣rence vnto the right ascention, the summe shall be the oblique de∣scention of the sunne: But if it be in any of the Southerne signes subduct the ascentionall difference out of the right ascention, the remainder is the desired descention: as for example the sunne be∣ing in the beginning of Taurus, the right ascention thereof by the third proposition is 27. degrées 54′· the ascentional difference thereof by the sixth proposition is 15. degrées 4′· for as much then as Taurus is a Northerne signe, I adde the ascentionall diffe∣rence vnto the right ascention, the summe is 42. degrées 58′· and so much is the oblique descention of the sunne being in the begin∣ning of Taurus.