374 



H. J. T. BIJLMER 



an accumulation to the lower end of the Timorini-curve, which, in addition to the 189 top 

 in their head-length-curve is suspect; more I dare not say about it. 



The Mamberamo-Papuans hâve the same head-breadth as the mountain people, but 

 the short heads of two of them cause a brachycephalic mean, of course of little value. Yet I 

 give their graphies to show that even big-sized Papuans need not be subject to dolichocephaly. 



AUREL VON TOROK in his article: „Versuch einer systematischen Charakteristik der 

 Kephalindex (Archiv fur Anthropologie, Bnd. 32, 1906) has proposed to make a division in 

 head-forms, in which the éléments that compose the cephalic index are more accentuated. 

 He calls short, the skulls shorter than 170 mm.; long, those of 197 mm. and more; narrow 

 those narrower than 125 mm. and broad, those, measuring 150 mm. at least. So we can 



40 Dyak 



56 (M)- 



Diagra 

 Stand. Height 



ïSreadth of head, Dyak. 



Lengtl: 



M 190 10 



ot head, Dyak. 



156 (M). 



distinguish the nine groups as stated below. However, for heads the given limits are not 

 valid; according to MARTIN [112], the head-length is ±7,5 mm. and the head-breadth + 7 mm. 

 larger than the corresponding skull-measures; the limits ofv. Torôk must therefore be increased 

 by respectively 7,5 and 7 mm. Distributing Timorini and Dyak on thèse groups, we get: 



