ON THE UNIVERSE

bodies and non-rational souls, not from those double intelligences, but through the medium of the matter of the Aether. The primum mobile first mover, and consequently the nine lower spheres, is divided into five parallel circles: one oblique, and two always so transverse to each other that they always intersect at equal angles. Of the parallels, the first is the equator, dividing the sphere into two equal parts, whose poles are the poles of the world. It is divided into 360 parts, which are called degrees, as are individual circles, especially the greater ones, which are the Meridian, the Equator, the Horizon, and the Oblique orb. To each of these parts on the earth, under the greater circles, correspond sixty thousand paces. The other two circles nearby are called tropics, and they are the boundaries of the longest days here, and the shortest days there. The longest days are at the beginning...