Expression of Faces.

Because in one case the forehead might be straight and close to the specified line, while in another, it may deviate significantly: Compare in our illustration the Models B.D. DD. with E.F.I.T.Y. AA. and others you might want to examine. Regarding the different forward projection of the chin; Observe Model B.B. against DD. And compare Y. Z. with each other, and you will find the difference quite large, though not outside of what is naturally possible. And as we've learned from proportional measurements that a well-constructed face can be divided into three parts, namely the forehead, nose, and the part that includes the mouth and chin; so we will see in these models the same very different from that uniform rule: In some cases, the forehead alone is as large as both the lower parts of the nose and mouth, as can be clearly seen in the faces K. and O. Conversely, the nose of face V. has as much length alone as the forehead, mouth, and chin combined. Conversely, in models C. K.X. BB., the smallest portion is given to the nose. And in this manner, almost endless variations can be found in the arrangement of faces; it's no wonder that there can also be such diverse expressions in appearances, where proportion measurements are so different, and the parts so infinitely differently arranged. When examining the general shapes of heads, one will find that there are oval, nearly round, straight, forward-hanging, backward-hanging, inserted and pointed or triangular shapes to be seen;