H. J. T. BIJLMER 



stance results a striking différence in Index cephalicus. The Timorini are decidedly meso- 

 cephalic — Ind. ceph. 78,1, — , the Dyak are on the limit of brachycephaly — Ind. ceph. 80,1 — . 

 The distribution of the heads on the usual groups is as follows: 



Timorini. Dyak. 



dolichocephalic ^76 14 4 



mesocephalic j6 — 81 39 19 



brachycephalic ^> 81 11 17 



64 40 



Diagr. X (see later on) gives an impression of the cephalic index, analysed in its 

 two components; the oblique lines dévide each part in Br.(achycephalic), M(esocephalic) and 

 D.(olichocephalic). 



To make a comparison, I remark that KLEIWEG DE ZWAAN found for 1297 men ot 

 Nias a cephalic index of 80,72, quite accordingly to that of my Dyak. His measures for 



head-length and head-breadth are however 

 Diagram VII. smaller: 1 8 1 and 146,1 mm. (rel. 11,69 



and 9,44). 



I thought it might be of use to 

 know, how far head-length, head-breadth 

 and cephalic index were in corrélation 

 with the standing height. From Diagr. 

 VIII (right half) it appears immediately 

 that high stature is often accompanied 

 by large head-length. By drawing in the 

 diagram lines, passing through the average 

 magnitudes (M), which divide each half in 

 4 quadrants, we see (on the right half) 

 that of the objects, longer than 154,5 cm -> 

 20 hâve a head-length above and 12 below 

 the mean. On the other hand, 22 of those 

 who are below the average height are 

 short-headed and only 8 long-headed. 

 This might be considered as a proof of 

 évident corrélation. However, a more 

 exact impression is obtained by taking 

 as limit between high and low stature 

 not only 154,5 cm. but the zone between 

 152,5 and 156,5 and as limit between long and short heads not 187 mm., but a stretch between 

 185 and 189. It is clear that the objects, falling outside this zone, hâve more right to be 

 qualified as high- and low-statured and long- or short-headed. Thus operating, we see that 

 beside 1 1 tall long-heads there are 5 tall short-heads and beside 14 low-statured short-heads 

 there are 5 low-statured long-heads. So the corrélation high-stature — long-heads has remaincd 

 and is even more accentuated. 



Let us now look for a similar correspondence between stature and head-breadth. 





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fem. Timorini 



Dyak 



Cephalic Index. 



