Ful subtilly he kalkulled al this.
whan he hadde founde his firste mansioun,
He knew the remenaunt by propocioun,
And knew the arisyng of his moone weel,
And in whos face, and terme, and everydeel;
And knew ful weel the moones mansioun
Acordaunt to his operacioun,
And knew also his othere observaunces
For swiche illusiouns and swiche meschaunces
As hethen folk useden in thilke dayes.
Anon, I will let you know the results...