152 
Transactions of the Royal Society of South Africa. 
Alveolar or Gnathic Index. 
Basi-alveolar . . . . . . . .84 mm. 
Basi-nasal ......... 77 „ 
Index (prognathous to an extreme degree) . . . 109'1. 
Facial Index. 
Naso-mental distance . . . . . . .97 mm. 
Bi- zygomatic distance . . . . . . . 96 
Index (leptoprosopic) ....... 101. 
The facial angle of Camper was not estimated. 
There was no marked asymmetry. 
Summary. 
The type of skull is long-headed and narrow, with a lowly vault, the face 
narrow, with ape-like protrusion of the jaws (thick-lipped in life). 
The nose was of medium breadth, and the orbits unusually high. The 
point of interest, which warrants the record, is the diminutive brain space 
available. 
It is not in any sense a record such as Dr. Saunders's specimen, with a 
brain weighing 1 70 grammes (specific gravity of whole encephalon = 1036 : 
Bucknil), but it is much smaller than an average case of microcephaly. 
