Because Astronomy is so transcendent and subtil an Art in itself, that therein  a man ought to have respect unto so many things before he can attaine to  true judgment thereby, because the eye of the understanding will not pierce  unto the half thereof, and few Doctors of our later time have been found so 
 experienced therein that they know sufficiently how to judge thereby;  Therefore I have composed this work, which I wilt have to be  named, Astronomical Geomancy; wherein, I will sufficiently teach how to 
judge with less labour and study. For in this present science it is not requisite  to behold neither the Ascendant, nor the hour in a Table, as it is in Astrology.