3i8 PAGAN TRIBES OF BORNEO 



have chosen the cranial length-breadth, length-height, and 

 breadth-height indices, as these are more directly com- 

 parable with the corresponding cephalic indices of Table A. 

 A detailed account of these crania must await a more 

 suitable occasion. 



The dolichocephalic crania are, as a rule, distinctly 

 akrocephalic, that is, the length-height index is superior to 

 the length-breadth index, but this is not the case with the 

 brachycephals. I find the average length-height index in 

 the living subject of a dozen inland tribes is 72.5 for 131 

 males and 78.2 for 40 females. That is, so far as our 

 measurements go, the women are more akrocephalic than 

 the men, which is unusual. 



The conclusions to be drawn from a somatological 

 investigation are necessarily limited. In my introductory 

 remarks I stated that one could distinguish two main races 

 among the principal groups of the peoples of Sarawak, a 

 dolichocephalic and a brachy cephalic, and that the former 

 might be termed Indonesian and the latter Proto-Malay ; 

 further, no one group is probably of pure race, though it 

 appears that some may be predominantly Indonesian and 

 others Proto-Malay. I do not for a moment suggest that 

 there was one migration of pure Indonesians and another 

 of pure Proto-Malays which flooded Borneo and by various 

 minglings produced the numerous tribes of that island, 

 though I do suggest that there have been throughout the 

 whole Archipelago various movements of peoples, some of 

 which may have been relatively pure communities of these 

 two races. There can be little doubt that we must look to 

 the neighbouring regions of the mainland of Asia for their 

 immediate point of departure southwards, for we now 

 know that two similar races have inhabited this area from 

 a remote antiquity. The light- (or light -brown) skinned 

 dolichocephals of south-east Asia, assuming for the 

 present that they are all of one race, have frequently been 

 termed Caucasians — for the present I prefer to speak of 

 them as Indonesians — and of these there are doubtless 

 several strains. The light- (or light -brown) skinned 

 brachycephals are usually grouped as Southern Mongols. 

 In the south-east corner of Asia there are probably several 

 strains of these brachycephals which hitherto have been 

 insufficiently studied. Even when an Indonesian element 

 has been recognised in the population of the Archipelago 

 there has been too persistent a practice of terming the 



