BRITISH EAST AFRICA 
105 
nevertheless very definitely lower than the average European 
example, and below the range of variation met with in crania 
of the Dschagga (? Bantu) tribe of South-West Africa. 
Remarks of an almost identical kind apply to the results 
of a study of the bregma and lambda angles. It may be 
noted that the bregmatic angle of the Kikuyu skull measures 
50°. This places the specimen in a lowlier position than the 
Gibraltar skull (50*5°) and the Spy skull No. 2 (also 50*5°). 
The evidence of the lambda angle is less striking. For the 
various values of these angles, reference to the paper mentioned 
above (Man, September 1911) should be made. The cranial 
Fig. 8. — Contours of the exocranial and endocranial 
surfaces of the ancient Kikuyu skull, to show the 
various angles measured in the median sagittal 
plane. The contours were drawn with the 
writer’s new form of craniograph. ( x J.) 
capacity calculated by means of Lee’s formula gives a value 
of 1275 c.c. 
The chief features of the mandible have been mentioned 
in an earlier paragraph. In spite of the absence of the coronoid 
process, the appearances point to a form in which the coronoid 
does not surpass the condylar process in height. Taking into 
consideration as many points as can be examined, the whole 
jaw is peculiarly like that often found in the Bush natives of 
South Africa. Interest in the characters of the mandible has 
been greatly stimulated of late by the observations of such 
observers as Klaatsch, Frizzi, and Elliot Smith (to mention 
the most recent authors only). But in regard to these 
characters, Rolleston pointed out many years ago that in 
Africa a very marked contrast distinguishes the mandible of 
the Bush native (South Africa) from the corresponding bone 
