4. As the terraqueous globe revolves around the sun, as a fluent circumference encompasses its centre, so the moon makes a circuit around the earth, as again her centre;
(Also the times of the moon by similar circuits around the earth.)
and in like manner cuts the equinoctial circle in two opposite points or nodes, and runs through a kind of zodiac; thus being nearer to one or other of the poles, she changes her situation every moment of her progress, and with her situation her aspect, by which she enlightens her central globe. The revolutions which she makes are so many of her years, to us months; thus again an image nearly similar is represented of her course, seasons, vicissitudes, and other changes, which result from these revolutions as from causes, resembling the image which exists in our earth.
