The Muscle, which rises between the Breasts, and the lower Ventricle, or rather, which terminates in the lower Ventricle, is found to have three Powers; being divided length wise by three Ligaments, into so many Parts; the first is the upper Muscle, which is followed by one of the Ligaments, as large as it self; below, is a second Muscle, joyn'd to a second Ligament; and lastly, comes the third Muscle, with the third Ligament, which is fastened to the Os Pubis of the lower Ventricle: This Partition of the Muscle by the several Ligaments, is a Provision, which Nature has made, on account of the great Motion happening to the Body, when bent or distended, by means of this Muscle; since, had the Muscle been all of a Piece, it would have had two great an Effect, and would have produced too great a Variety of Contractions and Dilatations, in prejudice to the Shape of the Body, which is more Beautyful, as the Motions of this Muscle are less apparent: For if it be required, that the whole Muscle, dilate it self nine Inches; and that it afterwards contract it self as many; In this Case, each of the three Divisions, having but three of the Nine to dilate, their natural form will not undergo any great Alteration; and consequently, the general Beauty of the Body, cannot hereby suffer any sensible Diminution.