This difference between the fundamental angles, which impart to the human figure, on the one hand, the beauty of feminine proportion and contour, and on the other, the grandeur of masculine strength, being in the ratio of 5:6, allows ample latitude for those intermediate classes of proportions which the ancients imparted to their various other deities in which these two qualities were blended. I therefore confine myself to an illustration of the external contour of the form, and the relative proportions of all the parts of a female figure, such as those of the statues of the Venus of Melos and Venus of Medici. The angles which govern the form and proportions of such a figure are, with the right angle, a series of twelve, as follows:— Tonic. Dominant. Mediant. Subtonic. Supertonic. (¹⁄₂) (¹⁄₃) (¹⁄₅) (¹⁄₇) (¹⁄₉) (¹⁄₄) (¹⁄₆) (¹⁄₁₀) (¹⁄₁₄) (¹⁄₈) (¹⁄₁₂) These angles are employed in the construction of a diagram, which determines the proportions of the parts throughout the whole figure. Thus:— [Sidenote: Plate X.] Let the line A B (fig. 1, plate X.) represent the height of the figure to be constructed. At the point A, make the angles of C A D (¹⁄₃), F A G (¹⁄₄), H A I (¹⁄₅), K A L (¹⁄₆), and M A N (¹⁄₇). At the point B, make the angles K B L (¹⁄₈), U B A (¹⁄₁₂), and O B A (¹⁄₁₄). Through the point K, in which the lines A K and B K intersect one another, draw P K O parallel to A B, and through C F H and M, where this line meets A C, A F, A H, and A M, draw C D, F G, H I, and M N, perpendicular to A B; draw also K L perpendicular to A B; join B F and B H, and through C draw C E, making with A B the angle (¹⁄₂), which completes the arrangement of the eleven angles upon A B; for F B G is very nearly (¹⁄₁₀), and H B I very nearly (¹⁄₉). At the point _f_, where A C intersects O B, draw _f a_ perpendicular to A B; and through the point _i_, where B O intersects M N, draw S _i_ T parallel to A C. Through _m_, where S _i_ T intersects F B, draw _m n_; through _β_, where S _i_ T intersects K B, draw _β w_; through T draw T _g_, making an angle of (¹⁄₃) with O P. Join N P, M B, and _g_ P, and where N P intersects K B, draw Q R perpendicular to A B. On A E as a diameter, describe a circle cutting A C in _r_, and draw _r o_ perpendicular to A B. With A _o_ and _o r_ as semi-axes, describe the ellipse A _r e_, cutting A H in _t_; and draw _t u_ perpendicular to A B. With A _u_ and _t u_, as semi-axes describe the ellipse A _t d_. On _a_ L, as major axis, describe the ellipse of (¹⁄₃). For the side aspect or profile of the figure the diagram is thus constructed—