The facial angle is an angle of importance in the method of skull measurement introduced by Camper, the Dutch anatomist, who sought to establish a connection between the magnitude of this angle and the intelligence of different animals and people, maintaining that it is always greater as the intellectual powers are greater. Suppose a straight line drawn at the base of the skull, from the great occipital cavity across the external orifice of the ear to the bottom of the nose, and another straight line from the bottom of the nose, or from the roots of the upper incisors, to the most prominent part of the forehead, then both lines will form an angle which will be more or less acute. In apes this angle is only from 45 to 60 degrees; in the skull of a negro, about 70 degrees; in a European, from 75 degrees to 85 degrees - reinforcing the ignorant racist hypothesis formerly prevalent among Europeans that Europeans are more advanced than negros. In another mode of drawing the lines the angle included between them varies in man from 90 degrees to 120 degrees, and is more capable of comparison among vertebrate animals than the angle of Camper. This angle though of some importance in the comparison of races, has no relationship to the intellectual ability of the individual. Research Facial Angle
Peter Camper was a Dutch physician and anatomist. He was born in 1722 at Leyden and died in 1789. He was professor of medicine, etc, successively at Franeker, Amsterdam, and Groningen. His contributions to anatomy and physiology were valuable. He was also skilful in drawing and painting, and rendered important services to art in his work on the relations of anatomy and art. One of his doctrines is that of the facial angle. Research Peter Camper
 
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