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.

To know in what time of the yeare any starre riseth or set∣teth, either Cosmically, or Acronically. The 35. Proposition.

HEre hauing set the Globe at your Latitude, and knowing the degrée of the sunne, bring the starre to the East part of the Horizon, and therewith consi∣der what degrée of the Ecliptique the Horizon cut∣teth at that present, that done, finde out the selfe same degrée vpon the Horizon in the narrow space of degrées next vnto the bodie of the Globe, and right against that degrée, you shall finde in what day and moneth that starre doth rise Cosmi∣cally, As for example, I would knowe at what time of the yeare Cor Leonis riseth Cosmically in the Latitude 52. I bring the starre Cor Leonis to the East part of the Horizon, and I finde that the Horizon cutteth the Ecliptique in the 23. degrée 30′· of Leo, which degrée being found againe vppon the Horizon, poin∣teth to the sixth day of August, so as I conclude that Cor Leonis doth rise that present day Cosmically, for then both he and the sunne are in a manner in one selfe degrée of the Ecliptique: nowe to know the Cosmicall setting of the saide starre, turne the same starre to the West part of the Horizon, and marke what degrée of the Ecliptique doth then rise in the East, and you shall finde the same to be the 23. degrée of Aquarius, which degrée béeing found againe vpon the Horizon in the narrow space of degrées next to the body of the Globe, containing the degrées of the Zodiaque, will point to the 31. day of Ianuarie, at which time the sunne is opposite to the said starre, and therefore it is saide to goe downe Cosmically, because it goeth downe when the sunne riseth. Now to know the Acronicall rising of any starre at any time, bring the starre to the East part of the Horizon, and marke therewith what degrée of the Ecliptique goeth downe in the West at that instant, for the sunne being in that degrée is opposite to the starre: As for example, by bringing the starre Cor Leonis to the East part of the Horizon, you shall find that the 23. degrée of Aquarius goeth downe at that instant, which degree being found againe vpon the Horizon, will shewe the day and moneth when the starre riseth

Acronically, and so you shall find the starre Cor Leonis to rise A∣cronically the 31. day of Ianuary. Contrariwise if you woulde know when the said starre setteth Acronically, bring the said star Cor Leonis, to the West part of the Horizon, & therewith marke what degrée of the Ecliptique then setteth in the West, which de∣gree being found againe vpon the Horizon, will shew that the said starre setteth Acronically the 6. of August.