Drawing.
From the dimple to each nipple there is one face, and another face at the space between the two nipples, forming an equilateral triangle from the two nipples and the dimple.
Proportions according to M. de Piles.
This illustrious French author has done nothing other than give the proportions of Jean-Paul Lomasle, which he has merely shortened and stripped of all subdivisions that only serve to confuse beginners, as he declares himself on page 145 of his remarks on Dufresnoy’s Art of Painting: he adds that he believes them to be better, as they conform to those given by Vitruvius in his third book. Here is his report.
The ancients typically gave eight heads to their figures, although some only admitted seven; but most divide the figure into ten faces, from the top of the head to the soles of the feet, in the following manner.
The section from the top of the head to the forehead is one third of a face: the face or visage begins at the birth of the lowest hairs on the top of the forehead and ends at the bottom of the chin; it's divided into three equal parts. The first contains the forehead, the second is for the length of the nose, and the third includes the mouth and chin.
From the chin to the dimple, there are two nose lengths or two-thirds of a face: from the dimple to the base of the breasts, one face: from the base of the breasts to the navel, one face: from the navel to the genitals, one face: from the genitals downward ...
Translation Notes:
"Face" refers to a unit of measurement in this context, derived from classical statues and artworks, not to the literal human face.
"Vitruvius" refers to the ancient Roman architect and his authority in formulating ratios.
"Dufresnoy’s Art of Painting" is a historical reference to a well-regarded text.