Chap. 88. Of Circles.
A Circle is a round figure without ends, having a circum∣ference, and a center, and the figure of a circle, may be many wayes contracted, but can be but in one way extenua∣ted, which is by inlarging the compasse, of the line; and the reason is, because it is a round piece, without ends; for a straight line may be drawn out at either end; but if a circle be drawn out of the compasse, it may stretch out of the one side, but it will pull in the other side after it, unlesse the line be broke, and then it is no longer a circle, thus we can extend no part out, but another part must contract to give way to that part that goeth out.