104 
REPORT ON A SKULL FROM 
The pointed chin has been already noted. In this region 
of the bone, an irregularity just to the right of the middle 
line suggests a former but long-repaired fracture. The incisura 
submentalis (cf. fig. 7) is distinct. Posteriorly, well-marked 
digastric fossae are observed, and above these two small spinous 
processes, one on each side of the mid-line. The my lo -hyoid 
ridge is not prominent. The sigmoid notch (fig. 6) is very 
shallow, even when allowance is made for the defect in the 
coronoid process. The angle is a large one in degrees. The 
condylar surface is transversely elongated, hut is distinctly 
small in antero-posterior extent. 
The left side bears evidence of an alveolar abscess in the 
socket of the third molar tooth, and the loss of this tooth 
receives its explanation hereby. 
C 
The fragment of scapula evidently belonged to the same 
individual as the skull and jaw. But beyond noting its small 
size, no further remarks are to be made on this fragment. 
The more important cranial measurements are given in the 
first of the accompanying tables (Table I). The cephalic index 
(68) bears witness to the elongated form of the cranial part of 
the skull, as does the value (62*8) of the altitudinal index to 
its deficiency in vertical extent. The alveolar index is of the 
mesognathous order. This implies that the prognathism is 
mainly alveolar and subnasal. 
With three exceptions, the remaining indices and angles 
provide no material for special comment. The exceptions 
are (1) the calvarial -height index, (2) the bregmatic angle, 
and (8) the lambda angle (fig. 8). The calvarial-height index 
expresses the degree of flattening observed in the sagittal arc 
of the cranium. A comparison with other data, and especially 
with those given by Mr. Shore and myself in a recent number 
of Man (September 1911 ; full references to the sources of 
information accompany the paper), shows that, as might be 
expected, this Kikuyu skull finds its associates among the 
lower types of cranium. In this lowly position, it is not, 
however, entirely isolated from even European crania. It is 
