The same thing must be observ’d in moving several times round on the same Circle, as upon the Circle mark’d D; about which may be describ’d as many Circles as shall be necessary. As for Example, the Circles E and F, which must be supposed to be on the same Circle with the Circle D.
To know to and from what Positions, Steps move.
I might have mark’d the
Positions
, in which each
Step
ought to terminate; but since this must have created a great deal of Trouble, I shall only confine my self to mark them on join’d and inclos’d
Steps