Richards Jarden, ‘Facial Angle’ (1970)

“The angle formed on the face by two straight lines drawn from the base of the nose, the one to the base of the ear, the other to the most projecting point on the forehead. In antique statues the facial angle is usually 90 degrees. As a general principle it may be said that intelligence is proportional to the facial angle. It is at any rate an incontestable fact that the lower one descends in the human race the more the facial angle diminishes.” Jules Adeline, The Adeline Art Dictionary