ANTHROPOLOGY. 
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Profile Angle. 
This, which is the inclination of the profile line to the 
horizontal plane, is classed under the three following 
divisions :— 
1. —Prognathous. 82° and under 
2. —Mesognathous, or Orthognathous. 83° to 90° 
3. —Hyperortliognatlious . 91° and over. 
Facial Index —( Virchow). 
100 x height 
length 
The breadth of the face considered as the linear distance 
between the two jugo-maxillary sutures (as also the facial 
index of Yon Holder). 
Broad-faced skull . 90*0 and under 
Narrow-faced skull. 90*1 and over. 
Index of the Upper Face— (Virchow). 
100 x upper facial height 
facial breadth 
Facial breadth considered as a linear distance between 
the two jugo-maxillary sutures and the upper facial height. 
Broad upper face. 50‘0 and under 
Narrow upper face . 50-1 and over. 
Zygomatic Facial Index— (Kollman). 
100 x facial height 
zygomatic breadth 
The greatest distance between the zygomatic arches, 
and the facial height, divided into two classes. 
Low-faced chamaeprosopic skull, from -irpoauirov, meaning 
“face”. 90-0 and under 
High-faced leptoprosopic skull . 90’1 and over. 
Zygomatic Upper Facial Index— (Kallmann), 
100 x upper facial breadth 
zygomatic breadth 
Chanueprosopic upper face with an index of 50-0 and over. 
Leptoprosopic upper face with an index of 50*1 and over. 
The upper facial index acts as a control measurement to 
the facial index. It is important to ascertain it in cases 
where, through the absence of the lower jaw, the facial index 
cannot be determined. 
