II. EXEMPLE.
Desiring to knowe the Suns Declination on the 30th. of April 1688 or 92. being the first yeare after the Leap-yeare. Then you must lay the dial A on the first of May, upon the utmost of the days parck, see then where the dial A doth cut the Sodiack, you find it to be verry neare the eleventh degree of Taurus, being the true place of the set time, that is 41 degrees of ♈. Then you must further lay the dial A on 41 degrees of ♈. as before, and place one foot of the Com∣passis on the dial A upon the greatest Declination of the Sun, being 23 degr. 32 min. then you must open the other foot of the Compassis, til it comes rect-angularly to touch the Line of 6 a clock, with this opening of the Compassis, you must place one foot of it in the Center of the dial A, and the other you must turn downewards, seeing upon what de∣gree and minute it falls, you'l find it to be verry neare 15 degr. and 10 min. being at the set time the true Declination of the Sun, differing litle or nothing with the wise and artificial calculation, do so at al other times, til to the yeare of 1700, but after that time you must lay the dial upon the set day, considering that this use is principally (as I told you) practised and formed upon the future Age, where upon we shal also give some exemples, which also wil serve fore the better understanding of the former.